-
Time dependent deformation of LaCoO3 based perovskites at different temperatures: ferroelastic and non-ferroelastic creep behaviour Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 M. Lugovy, M. Bondar, N. Orlovskaya, M.J. Reece, T. Graule, G. Blugan
Analysis of the creep behaviour of ferroelastic LaCoO3 and La0.8Ca0.2CoO3 perovskites at room and elevated temperatures is presented. It was found that the creep behaviour of the two LaCoO3-based c...
-
Enhanced densification and ionic conductivity of LLZO by flash sintering Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 Amirreza Sazvar, Hossein Sarpoolaky, Mohammad Golmohammad
Flash sintering arouses the interest since high-density ceramics can be obtained at shorter dwell times and lower temperatures than conventional sintering. In this study, the cubic garnet Li6.25Al0...
-
Influences on the mechanical and physical properties of hot-press moulding alkali-activated slag (HP-FRAASC) composite with various fibers Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 Haonian Wang, Lixin Xu, Sirui Zang, Dajian Huang, Song Wang, Qing Guo, Jiale Yang, Changjun Jiang
In this study, we will apply the hot-press moulding method for the first time to the preparation of alkali-activated slag composites (AASC) and incorporate 1vol.-%, 3vol.-%, 5vol.-%, and 7vol.-% st...
-
Sintering, microstructure, and mechanical properties of ZrO2-doped Al2O3 Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 Biswajit Baruah, Rahul Anand, Shantanu K. Behera
In the present work, the effect of Zr-doping on the sintering, microstructure development, and mechanical properties of polycrystalline Al2O3 was studied. Dopant concentrations of 830 and 2070ppm c...
-
Preparation of porous ceramsite from municipal sludge and its structure characteristics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 Junping Meng, Zhenxiao Cui, Chandrasekar Srinivasakannan, Xinhui Duan, Jinsheng Liang, Guangyan Tian, Zhiling Yang, Xiangying Wei
In this paper, the municipal sludge was used as the main raw material to prepare a kind of porous ceramsite. The porous ceramsite composition of 50 wt-% of municipal sludge, 10 wt-% of municipal so...
-
3D-printed porous Al2O3 membrane coated with hydrophilic modified titanium dioxide particles for large-flux oil/water separation Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 Hao Li, Hui Mei, Zhipeng Jin, Longkai Pan, Laifei Cheng, Litong Zhang
A viable material to address oil pollution in water is the super wetting surface, which is accessible to realise the separation of oil and water. According to Young’s equation, hydrophobic/oleophil...
-
Gel-casting for manufacturing porous alumina ceramics with complex shapes for transpiration cooling Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-11-23 Y. Belrhiti, P. Kerth, M. McGilvray, L. Vandeperre
Published in Advances in Applied Ceramics: Structural, Functional and Bioceramics (Vol. 122, No. 5-8, 2023)
-
Special Issue: ‘Advanced Ceramics and Coatings for Wear and Corrosion Applications’ Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-10-27 Eugene Medvedovski
Published in Advances in Applied Ceramics: Structural, Functional and Bioceramics (Vol. 122, No. 3-4, 2023)
-
Wear behaviour of alumina-toughened-zirconia composites with different phase arrangement under ball-on-flat tribological tests Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-10-27 Marek Grabowy, Agnieszka Wojteczko, Piotr Osada, Grzegorz Wiązania, Zbigniew Pędzich
An alumina-toughened zirconia (ATZ) material, fabricated using a procedure consisting of the common sintering of two different zirconia powders, was tested using the ball-on-disc method in a temper...
-
Improving mechanical properties of carbon and tool steels via chromizing Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-09-14 Tomas Grejtak, Jun Qu
Steels are commonly used in high-performance demanding applications due to their favourable mechanical properties. Various surface engineering techniques have been developed for steels, among which...
-
Effect of Sr2+doping on the microwave dielectric properties of BaZrO3 ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-08-28 Dewei Cui, Hui Shao
In this study, undoped and Sr2+ doped BaZrO3 ceramics were prepared by solid-state reaction using 3 wt-% B2O3 as sintering aid. The phase composition and microstructure of BaZrO3 were studied by X-...
-
An overview of oxidation in hybrid and glass-based protective coatings for thermoelectric materials for medium-temperature range applications Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-08-23 F. D’Isanto, F. Smeacetto, M. J. Reece, M. Salvo
Several oxidation protective coatings, both glass-based and ceramic/polymer hybrid coatings, for p- and n-type thermoelectrics were designed at the Politecnico di Torino in recent years, and they w...
-
In vitro tribocorrosion evaluation of carbide-derived carbon (CDC) for hip implants Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-08-14 Yani Sun, Kyle Kinnerk, Tony Mirshed, Michael McNallan, Mathew Mathew
ABSTRACT Carbide-derived carbon (CDC) was previously proposed as a surface modification method for hip implant applications since it showed excellent tribocorrosion performance under open-circuit potential (OCP) conditions. Nonetheless, a systematic evaluation of the CDC’s tribocorrosion properties was still missing. Therefore, our objective is to test CDC’s tribocorrosion performance under various
-
From stoichiometric to non-stoichiometric high-entropy carbide: a case study of hafnium addition Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-08-17 Yuan Qin, Xiao-Feng Wei, Ji-Xuan Liu, Yongcheng Liang, Guo-Jun Zhang
High-entropy carbide (Ti0.2xZr0.2xHf0.2x + (1-x)Nb0.2xTa0.2x)Cx (HEC-(1-x)Hf, x = 0.6-1) ceramics with 0-40 at.% nominal carbon vacancy were prepared by adding metal Hf into (Ti0.2Zr0.2Hf0.2Nb0.2Ta...
-
Impact of Er substitution on the properties of NdFeO3: structural, magnetic and microwave absorption Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-08-14 Qihua Liang, Haowen Zhang, Zhaofei Tong, Jinxiang Guo, Man Wang, Qingrong Yao, Huaiying Zhou
As a rare earth ortho-ferrite, NdFeO3 has strong magnetocrystalline anisotropy and can be used for microwave absorption, but its own wave absorption performance is poor. In this paper, Er3+ replace...
-
Development of environmental barrier coatings for non-oxide ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-08-01 Shunkichi Ueno, Tatsuki Ohji
This review article outlines the authors’ previous works on environmental barrier coatings (EBC) for non-oxide ceramics and discusses what has been revealed since then. It also provides an overview...
-
Highly wear resistant dual-phase (Ti-Zr-Nb-Hf-Ta)C/(Ti-Zr-Nb-Hf-Ta) B2 high-entropy ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-27 Annamária Naughton-Duszová, Dávid Medveď, Lenka Ďaková, Alexandra Kovalčíková, Peter Švec, Peter Tatarko, Hakan Ünsal, Pavol Hvizdoš, Pavol Šajgalík, Ján Dusza
Wear characteristics of a fine-grained dual-phase high-entropy (Ti0.14Zr0.2Nb0.2Hf0.2Ta0.26)C + (Ti0.38Zr0.18Nb0.22Hf0.115Ta0.105)B2 were investigated using the ball-on-flat technique/dry sliding i...
-
A comprehensive review of modern engineered ceramics coatings for optimised resistance to wear and corrosion Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-23 Douglas E. Wolfe, Caillin J. Ryan, Christopher M. DeSalle, Sergei P. Stepanoff, Benjamin I. Aronson, Zachary M. Boring, Justin A. Reiss, Patrick E. Albert, Jackson K. Nicastro, Aaron P. Fjeldsted
The value and impact that ceramic coatings have had in the development of modern mechanical systems and protection of components exposed to harsh environments are often overlooked and understated. ...
-
The design and selection of tungsten carbide-based composite overlays for aggressive wear service conditions Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-20 Gary Fisher, Daniela Diaz
The Albertan oil sands surface mining industry recovers and processes large quantities of ore to remove the bitumen from the oil sands. The scale of the operations and the abrasive nature of the or...
-
CuCr2O4 particle growth and evolution across sol–gel routes and calcination profiles Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-18 J. Billman, I. E. Reimanis, A. Ambrosini, G. Jackson
CuCr2O4 spinel is a candidate coating material for central receivers in concentrating solar power to protect structural alloys against high temperature oxidation and related degradation. Coating pe...
-
The volume erosion rate of the slip cast monolithic and composite ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-13 Lidija Ćurković, Darko Landek, Zrinka Švagelj, Ivana Gabelica
The volume erosion rate of the slip cast monolithic and composite ceramics was studied using SiO2 and SiC particles as erodents, under different impact angles (30°, 60°, 90°), at room temperature. ...
-
Preparation and structural characteristics of biphasic calcium phosphates from prawn shell bio-waste Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-10 Perabathula Satish, Ashritha Salian, Komalakrushna Hadagalli, Saumen Mandal
ABSTRACT The major objective of the work is to explore the mechanical properties of biphasic calcium phosphates (BCP), a biomaterial derived from marine resources like prawn (Fenneropenaeus Indicus) shell biowaste through wet chemical treatment of CaO. We report the BCP, a mixture of hydroxyapatite and octa calcium phosphate from prawn shell biowaste using wet chemical synthesis at 80°C under pH 10
-
Kinetics investigation of alumina ceramics corrosion in nitric acid Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-06 Lidija Ćurković, Ivana Ropuš, Ivana Gabelica, Sanda Rončević
The most widely used ceramic material is aluminium oxide, known as alumina. Due to its superior properties such as chemical stability, high wear resistance, refractoriness and so on, it is ideal fo...
-
Rapid evaluation of the particle-erosion resistance of Al2O3 ceramics, composites, and coatings using a resonant acoustic mixer Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-06 Peter Mechnich, Gözde Alkan
The solid particle technology usage in concentrated solar power plants as direct heat absorption and storage medium necessitate well selection of the materials for the components such as transport ...
-
Enamel (glassy) coatings for steel protection against high temperature corrosion Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-06 Eugene Medvedovski, Gerardo Leal Mendoza
Vitreous ceramic-like enamel coatings can be applied onto low-alloy and carbon steel components of various configurations, including tubulars, by different cost-effective technological methods achi...
-
Surfactant assisted dip-coating method for deposition of polyethylmethacrylate-diamond coatings Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-03 Zhengzheng Wang, Igor Zhitomirsky
This investigation is motivated by increasing interest in polymer-diamond coatings for biomedical applications in implants and sensors. A conceptually new strategy is based on the feasibility of so...
-
Localised surface modification of high-strength aluminium–alumina metal matrix composite coatings using cold spraying and friction stir processing Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-07-03 Wania Jibran, Priti Wanjara, Javad Gholipour Baradari, Maria Ophelia Jarligo, André McDonald
This study presents a novel approach for surface repairs of high-strength, cold-worked aluminium (Al) alloys, without negatively affecting the base material strength. Low-pressure cold spraying was...
-
Review of processing and design methodologies of environmental barrier coatings for next generation gas turbine applications Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-04-12 Ahmet Hilmi Paksoy, Ping Xiao
ABSTRACT SiC-reinforced SiC ceramic matrix composites (SiC/SiC CMCs) are considered promising candidates to replace their super alloy counterparts due to higher temperature capabilities and lower densities. However, high-temperature and high-pressure water vapour sourced from the hydrocarbons’ combustion reactions inhibit the potential of SiC/SiC CMCs by leading to rapid surface recession. In order
-
Enhancing the hardness of alumina-zirconia-CNT composites using alumina-graphite powder bath to provide homogeneous sintering Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-04-12 Diwakar Makireddi, V. D. Ghuge, Alok Behera, Y. M. Puri, Gajanan Thakare, M. M. Thawre
ABSTRACT Using a conventional sintering (CS) process, it is difficult to eliminate pore distribution across ceramic composites, resulting in mechanical properties destruction. In this study, 90%–95% of pores were reduced with the same sintering parameters by replacing CS with the cutting-edge Alumina-Graphite Powder Bath (AGPB) sintering method. Alumina-Zirconia-CNT(AZC) composites were fabricated
-
Preparation of aluminosilicate fiber-SiBOC composite foams for thermal protection applications Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-03-29 Anil Painuly, Benny K. George, K. Prabhakaran
ABSTRACT In this study, aluminosilicate fiber-embedded SiBOC matrix composite foams are realised by a simple, cost-effective and easily scalable method. Aluminosilicate wool is transformed into a compressible preform using polyvinyl alcohol as a binder. The preforms are impregnated with methylvinylborosiloxane (MVBS), followed by heat treatment at 1400°C in an inert atmosphere. The composite foam’s
-
Ca-ATZ/Ca-ATZ+SiO2 functionally graded ceramic Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-03-28 Alexander A. Dmitrievskiy, Darya G. Zhigacheva, Grigory V. Grigoriev
ABSTRACT The paper studies the structural features, phase composition and complex mechanical properties of two-layer composite ceramics based on alumina-toughened zirconia with silica added (Ca-ATZ/Ca-ATZ+SiO2). The ceramics under study were manufactured using a cost-effective technology involving grinding and mixing powders, layering of powder mixtures (different compositions), uniaxial pressing and
-
Facile and composition controllable synthesis of lanthanum-doped strontium titanate via peroxide route Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-03-04 Pongpen Kaewdee, Apichart Limpichaipanit, Chamnan Randorn, Sujitra Tandorn
ABSTRACT Lanthanum-doped strontium titanate powder, La0.05Sr0.95TiO3+δ, was fabricated by peroxide-based route and calcination of freshly prepared precipitate and precipitate after ageing was carried out. The starting titanium precursor was titanium nitride, which underwent the reaction to form titanium peroxohydroxide and then compound containing strontium and lanthanum. A perovskite structure of
-
Preparation of porous titania particles by partial dissolution and hot-water or hydrothermal treatment of hydrous titania Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-03-01 Takashi Kojima, Tsukasa Baba, Kohei Inamoto, Rena Isowaki, Chieko Yukita, Kazuya Ujiie, Akiko Takeda, Fumiyuki Shiba, Naofumi Uekawa
ABSTRACT Uniform-sized amorphous hydrous titania particles (HTPs) with nonporous or porous surface were prepared and subjected to hot-water or hydrothermal treatment to induce crystallisation of the titania phase for preparing porous titania particles with high specific surface area (SSA) and outer diameter in a micron order. Porous HTPs were crystallised under milder treatment conditions than those
-
Oxidation resistance of magnesia carbon bricks and the influence on their performance Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-02-04 Lv Changhai, Li Jing, Tian Shouxin, Lv Renxiang
ABSTRACT In this paper, the oxidation resistance of magnesia carbon bricks with different compositions was evaluated and the influencing factors were obtained, the influence of oxidation resistance on the performance of magnesia carbon bricks was investigated. The test results showed that for low-carbon MgO-C refractories, the influence of holding time was greater than that of oxidation temperature;
-
Biphasic BiFeO3 ceramics based on rhombohedral and tetragonal polymorphs Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-01-30 Cristian Casut, Raul Bucur, Nicolae Miclau, Iosif Malaescu, Marinela Miclau
ABSTRACT From a new perspective, polymorphism is now often considered as a functional property that extends the applications of many materials. BiFeO3 is still an interesting material from both fundamental and applied points of view. A unique characteristic of BiFeO3 film, the polymorphism was stabilised only using the epitaxial strain caused by the substrate of the film. Here we report the hydrothermal
-
The effect of Ti to the crystal structure of Li7-3xMxLa3Zr1.8Ti0.2O12 (M= Ga, In) garnet-type solid electrolytes as a second dopant Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-01-23 Sevda Saran, Yasin Ramazan Eker, Şule Ateş, Gültekin Çelik, Hadi Baveghar, Osman Murat Özkendir, Ülfet Atav, Wantana Klysubun
ABSTRACT Garnet-type solid-state electrolytes are promising candidates for solid-state lithium batteries, nevertheless their ionic conductivity is still not enough for commercial applications. On the other hand, doping still is the common way to improve the ionic conductivities of these solid electrolytes. In this study, mono and dual-doped garnet-type solid electrolytes were synthesised by substituting
-
Binder jetting printing of zirconia structures via grading powder and epoxy binder Adv. Appl. Ceram. (IF 2.2) Pub Date : 2023-01-06 Xinduo Huang, Tingting Zhao, Tongcai Wang, Shan Li, Gong Wang
ABSTRACT The binder jetting (BJ) process shows significant superiority in manufacturing ceramic parts with a complex structure. The performance of the green part is highly reliant on the features of raw materials. A kind of grading zirconia powder M0 was designed, its intrinsic characteristics including microstructure, size and size distribution, bulk density, porosity, hall velocity and spread performance
-
Effects of sol contents and sintering temperatures on SiO2 coated needled carbon fibre felt composites Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-22 Shuang Wang, Qunjiao Chen, Haiming Huang, Weijie Li, Buyue Zhao
ABSTRACT Carbon fibre has excellent mechanical properties at high temperatures but weak oxidation resistance. The paper prepared the anti-oxidative silica coating on the surface of needled carbon fibre felt by the sol–gel method and discussed the effects of sol content and sintering temperature on the coatings’ performance. The phase composition, density, thermal conductivity and thermal stability
-
Preparation and oxidation behaviour of MoSi2-SiC-Si-ZrB2 composite coatings on carbon surface via laser cladding Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-16 Xuemei Liu, Weixin Chen, Xueyu Tao, Heliang Fan, Zhangsheng Liu, Yihan Ling, Litong Guo
ABSTRACT Anti-oxidation coatings of MoSi2-SiC-Si-ZrB2 were prepared on the graphite surface by laser cladding. The XRD, scratching bonding force, SEM and isothermal oxidation tests were used to investigate the microstructure and properties of the coatings. The coating with 40 wt% ZrB2 added (MoSi2:SiC:Si:ZrB2 = 16:4:5:16.6) has the lowest degree of oxidation, the best oxidation resistance and the highest
-
Stability of 3Y-TZP nano zirconia powder after hydrothermal ageing treatment Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-15 Shafique Ahmed, Lifong Zou, Haixue Yan
ABSTRACT Yttria-stabilised zirconia (Y-TZP) ceramics are widely used for dental and prosthesis applications; however, they are susceptible to low-temperature degradation (LTD). Despite several explanations of the LTD mechanism, it is not fully understood yet. Commercial TZ-3Y-E grade powder was used to further study the LTD before sintering it. Hydrothermal ageing treatment was applied to samples at
-
Mechanical and thermal insulation properties of carbon fibre-reinforced carbon aerogel composites Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-13 Longlong Li, Junzong Feng, Fengqi Liu, Liangjun Li, Yonggang Jiang, Jian Feng
ABSTRACT Carbon fibre-reinforced carbon aerogel composites (C/CAs) were prepared by using polyacrylonitrile (PAN) and phenolic (PH) carbon precursor fibres as reinforcements, respectively, then impregnated with resorcinol-formaldehyde sol, aging, solvent exchanging, CO2 supercritical drying and carbonization at 1000°C. The physical properties, structural morphology and mechanical and thermal insulation
-
Pressure slip cast processing of alumina (Al2O3) products and comparative evaluation of mechanical properties Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-13 P. Raju, Asit Kumar Khanra, Madireddy Buchi Suresh, Y. Srinivasa Rao, Roy Johnson
ABSTRACT Pressure Slip Casting (PSC) using polymer moulds offers several advantages over Conventional Slip Casting (CSC) of ceramics such as enhanced productivity in combination with higher green density, homogeneity and low rejections. PSC is currently practiced in table-ware industries however, application to the technical ceramics is limited owing to the collapse of cast part while de-moulding during
-
Fabrication and characterisation of ZrO2-reinforced porous mullite ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-13 Peng Ji, Chenghao Song, Yongwan Wu, Hailiang Deng, Xiangong Deng, Yi Zhang, Xiang Ding, Haijun Zhang, Songlin Ran
ABSTRACT ZrO2-reinforced porous mullite ceramics were fabricated by a foam-gel casting approach using zircon (ZrSiO4) powders and alumina (Al2O3) powders as raw materials. The influence of firing temperature on the phase composition of porous samples was analysed. Based on the analysis results, the effects of a blowing agent on the physical properties, microstructure, mechanical strength and heat conductivity
-
Preparation of zirconium diboride by reduction of zirconia with calcium hexaboride Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-12-06 Yu Wang, Yue-Dong Wu, Guo-Hua Zhang, Kuo-Chih Chou
ABSTRACT Zirconium diboride (ZrB2) is a typical ultra-high temperature ceramic material (UHTC). In this work, the preparation of ZrB2 by reducing zirconia (ZrO2) with calcium hexaboride (CaB6) was studied in detail. With the assistance of molten salt, the reduction rate was dramatically enhanced. Additionally, the results showed that ZrB2 products with different particle shapes were prepared by changing
-
Introduction to research on advanced ceramics in dentistry (4th Advanced Ceramics and Technologies for Dentistry (ACT4D) 2020) Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-11-07 Andraž Kocjan
Published in Advances in Applied Ceramics: Structural, Functional and Bioceramics (Vol. 121, No. 5-8, 2022)
-
Editorial: special issue on PIEZO2017: Electroceramics for End Users IX Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-11-07 L. Pardo, A. M. González, J. F. Bartolomé, P. Ochoa
Published in Advances in Applied Ceramics: Structural, Functional and Bioceramics (Vol. 121, No. 5-8, 2022)
-
Fabrication and characterisation of ZrSi2 ceramics via reactive hot-pressing Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-11-03 Yasith Chameendra Jayakody Mudiyanselage, Karthikeyan Ramachandran, Doni Daniel Jayaseelan
ABSTRACT ZrSi2 was fabricated via reactive hot-pressing technique for 45 min at 1250°C and 1350°C, respectively. The hot-pressed sample exhibited Vickers hardness of 10.93 ± 0.32 GPa and indentation fracture toughness of 3.16 ± 0.54 MPa.m1/2. Thermal conductivity (RT-2.99 W (m.K)−1) and diffusivity (RT–18.2 mm2 s−1) of the sample decreased with increasing temperature due to phonon scattering. Oxidation
-
Temperature dependence in ageing process in commercial zirconia dental ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-09-21 Shafique Ahmed, Chunxiao Song, Jiyue Wu, Bo Li, Haixue Yan
ABSTRACT The temperature dependence of ageing in the commercial zirconia ceramic is crucial in the applications of dental implants. This study investigated the relationship between structure and mechanical properties of the zirconia dental ceramics and their susceptibility to human body temperature in a prolonged time. Commercial samples were put into exaggerated low-temperature degradation (LTD) as
-
Wear behaviour of graphene platelets reinforced WC-Co cemented carbide Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-09-12 Meng Li, Zanlin Cheng, Ján Dusza, Zhuolin Song, Fangkun Xiao, Manfeng Gong, Shangyue Sun, Chengyu Zhang
ABSTRACT The wear behaviour of WC-Co cemented carbide reinforced with graphene platelets (WC-Co-GPLs composite) was investigated. The tribological parameters as friction coefficient and wear rate were measured using a ball-on-plate configuration with different contact loads. The microstructures and worn surfaces of composites were studied. The WC-Co-GPLs composite exhibits significantly better tribological
-
Thermal stability of TiC–Ti3AlC2 and TiC–Ti3AlC composites during selective laser treatment Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-09-08 M. G. Krinitcyn
ABSTRACT In this article, the thermal stability of TiC–Ti3AlC2 and TiC–Ti3AlC composites during selective laser sintering/melting is studied. The phase composition evolution after laser processing is investigated and the structure of the obtained samples is also described. Samples were obtained by selective laser sintering/melting from mixtures of commercial powders and from a synthesised composite
-
Microstructure characteristics and mechanical properties of Al2O3/MgAl2O4 directionally solidified eutectic ceramic Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-09-08 Shuoyan Zhai, Xianying Cao, Juncheng Liu, Qiang Liu
ABSTRACT Al2O3/MgAl2O4 directionally solidified eutectic ceramic (DSEC) rods with Φ 10 mm were prepared with induction heating zone melting (IHZM) method. The phase components of the DSEC were composed of MgAl2O4 phase growing along the preferred orientation 〈311〉 and Al2O3 phases growing along the preferred orientation 〈110〉. In the DSEC, the Al2O3 phase is the matrix phase mixed with part of MgAl2O4
-
Low-temperature synthesis of Ti3SiC2 powders in mixed molten salts Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-08-23 Benjun Cheng, Can Yao, Juntong Huang, Cheng Liu, Shaowei Zhang, Hesong Li
ABSTRACT A homogeneous and high-purity titanium silicon carbon powder (Ti3SiC2) is synthesised, using titanium, silicon and carbon black powders as raw starting materials at low temperatures via an improved molten salt method. This work demonstrates that multiple molten salts are more beneficial in facilitating the synthesis of Ti3SiC2 powder. The effect of reaction temperature on the purity of the
-
Influence of sintering temperature and Li+/Mg2+ doping on the thermoelectric properties of Bi2−2xLixMgxSr2Co2Oy Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-08-10 Ho Young Hong, Soyeon Gwon, Donghoon Kim, Kyeongsoon Park
ABSTRACT Bi2−2xLixMgxSr2Co2Oy (x = 0.05, 0.10 and 0.15) samples are prepared by a solid-state reaction at various temperatures (1033–1133 K). All X-ray diffraction peaks can be indexed as the monoclinic Bi2Sr2Co2Oy phase. The structural and thermoelectric properties of Bi2−2xLixMgxSr2Co2Oy samples are systematically investigated, depending on the sintering temperature and the Li+/Mg2+ concentration
-
Electrical transport properties of La doped BiFeO3-NaNbO3 composite Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-06-13 Dibyasingh Mohanta, N. K. Mohanty, Khusboo Agrawal, Banarji Behera
ABSTRACT The composites, (1−x)(BiFe1-yLayO3)– xNaNbO3 with x = 0.25, 0.45 and y = 0.10, 0.20, are prepared by mixed oxide method. XRD analysis shows rhombohedral (hexagonal) structure at room temperature. The properties such as dielectric loss (tanδ) and dielectric constant (ϵr) of all the samples are studied. A significant improvement in dielectric constants has been observed with the rise of Lanthanum
-
Low temperature sintering and dielectric properties of LaAlO3–BaSnO3-based microwave dielectrics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-05-16 Tauseef Ahmed, Mingyu Kim, Salman Ali Khan, Joonsik Lee, Sang-Bok Lee, Hyo Tae Kim, Soonil Lee
ABSTRACT LaAlO3–BaSnO3 ceramics as a new microwave dielectric material were investigated in terms of optimum synthesis conditions and thereby the relative density, microstructure, solid-solution state, and dielectric properties with the addition of various sintering aids at different sintering temperatures. The dielectric properties of 0.9LaAlO3–0.1BaSnO3 (LA-0.1BS) were strongly influenced by relative
-
Abrupt high grain growth in hydroxyapatite during flash sintering Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-05-13 Jooseong Kim, Indu Bajpai, Jae Hui Jeon, Kyelim Yun, Jaeick Han, James F. Shackelford, Young-Hwan Han, Sukyoung Kim
ABSTRACT The electric flash generated by an electric field aided the sintering of hydroxyapatite (HA) in relatively less time and at lower furnace temperatures than the conventional sintering method. The current work has reported a comparative study to explain thermodynamically the effects of the increasing DC electric field strength at 1000°C and 1100°C sintering furnace temperatures during flash
-
Fitness of self-glazed zirconia onlays using conventional and digital impressions Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-05-04 Kun Qian, Bingqing Li, Tingting Pu, Tianyi Bai, Yihong Liu
ABSTRACT The fitness of self-glazed zirconia (SGZ) onlays fabricated with computer-aided design/computer-aided manufacturing was analysed, and conventional impressions (CIs) were compared with intraoral digital impressions (DIs). Onlay preparation was applied on a typodont left mandibular first molar to create 22 copy dies, which were divided into DI and CI groups. The marginal gap of DI-fabricated
-
Preparation and physical properties of foamed ceramics from shale residue Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-03-10 Miao Zhou, Yuzheng Wang, Laishi Li, Yusheng Wu, Hainan Li
ABSTRACT Foamed ceramic materials were prepared by shale residue and manganese slag as the primary raw materials, magnesium oxide as flux and silicon carbide as a foaming agent. The results show that the amount of shale residue has a significant effect on the physical properties of the foamed ceramics. The pore size of the foamed ceramics increases significantly with the increase of shale addition
-
Strengthen the bonding of self-glazed zirconia to enamel by sol–gel coating Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-03-07 Feifei Yu, Mingjie Wang, Lutong Song, Jing Zhao, Yuanna Zheng
ABSTRACT Sol–gel coating technology was applied to modify the bonding surface of self-glazed zirconia (SZ). Its effect on the bond strength of SZ to enamel was evaluated in vitro in comparison with the conventional milled zirconia treated by airborne-particle abrasion (CZa) and the heat-pressed lithium disilicate glass-ceramics treated by etching and silanization (LDe). All ceramic specimens were bonded
-
Mechanical response and thermal expansion characteristics of spark plasma sintered Zr–La–B–C(O)-based precursor-derived ceramics Adv. Appl. Ceram. (IF 2.2) Pub Date : 2022-01-31 Gokul Nanda, Nithin Chandran, Ganesh Babu Thiyagarajan, Renjith Devasia, Ravi Kumar
ABSTRACT In this work, a Zr–La–B–C(O)-based precursor-derived ceramic system is spark plasma sintered at 1600°C for 10 min. Chemical and phase analysis of the sintered ceramic reveals nanocrystalline ultra-high temperature (UHT) phases of ZrB2, ZrC, and La2Zr2O7 embedded in a glassy carbon matrix. A comprehensive evaluation of mechanical properties and thermal expansion characteristics correlates well