Abstract In the present study, aluminium hybrid surface composites were prepared by incorporating boron carbide (B4C) and Aluminium oxide (Al2O3) ceramic particles via the Friction Stir Processing (FSP) route. Tool rotational speed, Tool traverse speed, Axial force, and Reinforcement ratio were the chosen process parameters. Response Surface Method (RSM) based Central Composite Design (CCD) was used

Abstract Objective The strong bond strength (SBS) between metal and ceramic is crucial to the success and longevity of metal-ceramic restorations. Therefore, this study aimed to determine the SBS between ceramic and cobalt-chromium (Co-Cr) alloys produced by different methods, treated with sandblasting, and four different grinding procedures. Materials and methods A total of one hundred and fifty Co-Cr

Abstract In this study, the cationic surfactant cetyl trimethyl ammonium bromide (CTAB) and silane coupling agent N-(β-aminoethyl)-γ-aminopropylmethylbimethoxy silane (KH602) were used as modifiers to improve the interfacial bonding strength between basalt fiber (BF) and PBT matrix. Using single modified and compound modified BF as reinforcing fillers, BF/nano-Sb2O3/BEO-PBT composites were prepared

Abstract This study assessed the effect of different smear layers and surface conditioning on microtensile bond strength to dentin of two different glass-ionomer cements (GICs). Third molar teeth without caries were collected for this study. The crowns of teeth were cut to reveal the mid-coronal dentin surface, and then the specimens were randomly assigned to three groups for surface preparation (#180-grit

Abstract In this study, a quad acrylic copolymer composed of four monomers namely acrylic acid, methacrylic acid, butyl acrylate, and methyl methacrylate/cloisite30B(C30B) nanocomposites with different loading of nanoclay (0.5–3.0%) is prepared by the in-situ method for heat resistant adhesive application. Different parameters like solid content, solubility, appearance, acid value, and pH values are

Abstract Objectives This study aimed to systematically review the literature on laboratory researches and statistically determine the influence of mineralizing strategy on the dentin bond stability. Methods The search was conducted in PubMed/MEDLINE, Web of Science, EMBASE, and SCOPUS according to the PRISM guidelines. From 2200 possible eligible articles, 50 were selected for full-text analysis, and

Abstract In recent times, mass timber products have encouraged renewed interest in wood as raw material for more sustainable building and construction. However, durability concerns due to wood susceptibility to biodegradation could curtail this interest. Hence, there is a need for more durable wood products in emerging structural applications including the use of preservative-treated wood for composite

Abstract This paper focuses on the study of composite concrete specimen’s resistance under an impact of AK-47 bullet with an estimated projectile’s speed of 715 m/s, and energy of 2019 J. Two sets of samples (a total of nine samples) are fabricated and tested from mortar with 1 cm steel fibers or 1 cm carbon fibers respectively. Tensile and compression tests are applied for the first set of samples

Abstract The aim of this study is to explore the influence of HEMC with different total substitution degrees and polyacrylamide (PAAm) modification on the properties of steel slag cement mortar. The results show that HEMC increases the water retention rate, consistency, tensile bond strength, and flexibility of all types of steel slag cement mortars. The addition of HEMC, however, leads to a decrease

Abstract This experimental study aims to investigate the effects of the strengthening arrangement on the behavior and the performance of strengthened beams, according to the Near-Surface Mounted (NSM) and the Externally Bonded Reinforcement (EBR) techniques. In total five rectangular beams including a Control Beam (CB) and four Carbon Fiber Reinforced Polymer (CFRP) strengthened beams with NSM and

Abstract The essential purpose of this review paper is to describe the advancement of work towards dissimilar friction stir welding of Al to Mg alloy. Nowadays, joining dissimilar aluminium and magnesium alloy is challenging due to different crystal structures, so Friction Stir Welding (FSW) plays an essential role in joining this dissimilar alloy. In this, the theoretical parameters causing the formation

Abstract The aim of this study was to evaluate the effect of the type of preheated resin composite on the microtensile bond strength (µTBS) between dentin and feldspathic ceramic inlays. Thirty healthy human premolars received inlay preparations for feldspathic ceramic restorations and were then divided into three treatment groups according to the luting agent (n = 10): Conventional Resin Cement (RC)

Abstract In this theoretical work, the meniscus that forms during capillary rise is analyzed. The absolute volume of the meniscus is anticipated to depend weakly on wettability and strongly on tube diameter. For liquids that have fully risen, the contribution of the meniscus to the overall volume appears to be negligible for most liquids if the inner tube diameter is less than one millimeter. Sphericity

(2021). Special section in honor of Professor Jean-Pierre Pascault: half a century of polymer chemistry and polymer materials research. Journal of Adhesion Science and Technology. Ahead of Print.

Abstract This study aims to investigate the causes of the differential behavior of extractives on the water resistance of the welded joints of three tropical woods. The welded joints of these chemically characterized woods were obtained by rotational dowel welding. The respective extractives contents obtained during the successive extractions were 12.98 ± 0.90% for Iroko, 17.36 ± 0.40% for African

Abstract The low-velocity impact behavior of single-lap joints was investigated in this study. In single-lap joints, woven carbon fiber reinforced epoxy (CFRE) and plain woven glass fiber reinforced epoxy (GFRE) laminates as well as a hybrid composite laminate (HCGFRE), which is formed by stacking carbon and glass composite laminates, are used as adherends. Araldite 2011 and Araldite 138 M/HV998 epoxy

Abstract This study developed a kind of non-woven carbon tissue reinforced adhesive film (NWCTRAF) with high bonding strength and reliability by interleaving the NWCT into the adhesive film. The manufacturing process, bonding strength, Weibull distribution, metallography of cross-section, and fracture surface morphology of NWCTRAF specimens were investigated. The results showed that the average bonding

Abstract Epoxy-polyhedral oligomeric silsesquioxane (POSS) nanocomposites were prepared by incorporating POSS nanofiller into the epoxy-amine network. The monofunctional epoxy-POSS monomer or nonfunctional octaphenyl POSS unit were applied to reinforce the epoxy network by producing the nanocomposite with chemically bound pendant POSS or physically admixed POSS. The combination of reactive and unreactive

Abstract The adhesion of thin silver joints sintered on metallic substrates is a major issue for their potential use in power electronics modules. Here, we explore how laser shock-induced spallation can provide a way to study this adhesion. Due to wave interactions inside the shock-loaded assembly, dynamic tensile stresses are induced near the copper-silver interface, resulting in partial or full removal

Abstract There is an increasing need for joining technologies of resin matrix composites and metals, in which resistance welding is one of the most promising methods. In this work, the resistance welding of 6063Al alloy and CF/epoxy laminate was realized through designing the thermoplastic layer on the surface of the base material. The welding process was conducted under different welding times (tw)

Abstract Evaluate the influence of cleaning protocols on vitrification patterns, contact angles, and bond strength between zirconia and resin cement. 48 zirconia discs were sectioned, polished, and sintered (15 × 2 mm). The discs were randomized into four groups according to the zirconia cleaning protocol (n = 12), following: CJ (positive control)-sandblasted with 30-µm particles of alumina coated

Abstract Waterborne poly(urethane urea)s (PUDs) containing graphene derivatives with different morphologies and surface polarities were synthesized via in situ polymerization by using the acetone method. Small amounts (0.04–0.30 wt.%) of graphene oxide (GO), graphite nanoplatelets (GP) or milled graphite (MG) were mixed with polyadipate of 1,4-butanediol polyol and added during synthesis of the PUDs

Abstract Snake grass fibers (SGFs)-reinforced polypropylene (PP)-based longitudinal bio-composites (40 wt% by fiber) were successfully manufactured by compression molding and tested for their physicomechanical, hardness, and thermal properties. SGFs were modified with non-ionizing radiation at different intensities and then bio-composites were fabricated. The mechanical properties of irradiated-SGF/PP

Abstract Natural materials (NMs) are the preferred choice of scientists for metal protection due to their economic viability, zero harmful effects and easy protocols for use. NMs are electrochemically adhered to the metals surface and protect them in violent media. In this work, adsorption properties of Musa Paradisica peels on mild steel (MS) in sulfuric acid solutions are studied. To investigate

Abstract Sustainable Zoffa extract solution provides organic molecules with structures including heteroatoms, aromatic rings, and polar groups, which play an important role in the adsorption and inhibition process on metal substances in corrosive environments. The main components in Zoffa extract solution, such as phenylacetaldehyde, myrtenol, pinocamphone, and isopinocamphone, can easily be adsorbed

Abstract In this work, multi-pass friction stir processing (FSP) was successfully applied to AA6061 to reinforce SiC nanoparticles producing defect-free processes. It can be inferred that Nano SiC particles were fragmented totally and uniformly distributed in sixth pass FSP. Agglomeration of SiC particles decreases with increases in the number of FSP pass. In the first pass, the SiC powder with lower

Abstract The primary aim of this study is to determine the effectiveness of separating ink particles which are adherent to cellulose fibers from cellulose fibers after recycling. In addition, after recycling, physical and optical changes in cellulose fibers are observed and inkjet and laserjet printing properties are investigated in some parameters. Initially, the reference papers are recycled according

Abstract The approach for joining carbon fiber reinforced epoxy (CF/Epoxy) composites proposed in this study is based on the use of a plasticizing chip (PC), one side with rich resin and the other side with bare fiber, prepared by 1, 2, 3 or 4 pieces of glass fiber reinforced polyetherimide (GF/PEI) prepregs and a piece of glass fiber cloth (GFC), added as a last ply in the stacking sequence of CF/Epoxy

Abstract Electropolymerization and deposition of poly(salicylic acid-co-N-methylaniline) copolymer, poly(SA-co-NMA) onto platinum electrode was studied using cyclic voltammetry in an acidic medium under inert conditions at various reaction factors. The mechanism of the electropolymerizaion reaction was proposed and the apparent activation energy (Eapp) was determined. The deposited polymer film was

Abstract The present work aims to investigate the inhibitive and preventive effects of ascorbic acid as an organic inhibitor against the corrosion of reinforcements immersed in simulated concrete pore solution, and also in mortars exposed to chlorides. The study was carried out using different electrochemical methods such as the open circuit potential, potentiodynamic polarization, and electrochemical

Abstract The mechanical properties of sandwich structures have drawn much attention from research and industrial application, while sandwich structures in the form of L-joint have been rarely addressed. In this paper, L-joint sandwich structures were experimentally tested under bending load to investigate the mechanical performance during structural deformation and damage evolution. The corresponding

Abstract The inhibition performance of 5-methyl-3-phenylisoxazole-4-carboxylic acid (MPC) alone and in combination with potassium iodide (KI) for low carbon steel in 1.0 M HCl and H2SO4 solutions is studied using weight loss, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), ultraviolet–visible (UV–vis) spectrophotometry, and surface

Abstract Crushed brick-concrete recycled aggregate (BCRA) represents a sustainable and environmentally friendly alternative to natural aggregates (NAs) in practical engineering. However, compared with NA, the high porosity and low strength of BCRA means it struggles to meet engineering requirements, which limits its large-scale application. This paper reports upon an experimental study to enhance the

Abstract In the present study, the extract of Inula viscosa leaves (IVE) was used as an environmentally-friendly and green corrosion inhibitor for X70 carbon steel in 1 M HCl. The experimental results were endorsed by computational approaches. The corrosion inhibition effect of the extract was investigated by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy

Abstract Dissimilar AZ31B/2024-T4 T-lap-joint was successfully fabricated by friction stir welding (FSW) with the rotation speed of 600r/min and the welding speed of 65 mm/min. The microstructure characteristics were observed and analyzed with optical microscope (OM) and the forming mechanisms were discussed by energy spectrometer (EDS) and X-ray diffractometer (XRD). In addition, the effect of microstructure

Abstract Silicones are outstanding elastomers with e.g. great thermal properties and purity that make them important commercial materials. Current Research and Development aim at generating filler-free, non-cross-linked materials so that to bring to them transparency, reusability, and self-healing propensity. This mini review gives, first a short summary of conventional thermoplastic silicone elastomers

Abstract Cellulose in the fibrous structure as the main structural component in the cell wall of plants was formed by the combination of three thousand or more glucose molecules. It was a natural polymer synthesized by a large number of living microorganisms. In this study, it was aimed to observe the performance of peanut shells physically added to the water-based coating to increase the viscosity

Abstract The main aim of this work was to study the effect of surface modification on the characteristics of local Pine cone flour (PCF) and on the interfacial adhesion in polypropylene/poly(lactic acid)/Pine cone (PP/PLA/PCF) blend composites. For this purpose, alkali, silane, and a combination of both treatments were applied to impart a hydrophobic character to the PCF flour. Treated and untreated

Abstract In this paper, a method with highly sensitive multi-wall carbon nanotubes (MWCNTs) film sensors was put forward to evaluate the health condition of glass fiber-reinforced composite single lap joints in real time. With this method, the single lap joint fracture can be predicted when the resistance change rate reached 1.11% to 5.89% approximately. Meanwhile, for the single lap joints, the reality

Abstract A series of fluorinated polyacrylate emulsion pressure-sensitive adhesives (PSA) with various lengths fluorinated side chains were synthesized by using n-butyl acrylate (nBA), acrylic acid (AA), 2-hydroxyethyl acrylate (HEA) together with three kinds of fluorine monomers trifluoroethyl methacrylate (TFEMA), hexafluorobutyl methacrylate (HFBMA) and dodecafluoroheptyl methacrylate (DFHMA). The

Abstract Stainless steel clad plates have been largely used in engineering applications because of their excellent mechanical properties. Thus, there are many kinds of composite processes to prepare stainless steel clad plates. In general, the temperature is one of the most important parameters in the bonding processes, which is studied as a constant value. In this work, a novel bonding process using

Abstract This study evaluated the tensile strength of three aesthetic abutment materials at two different angulations (0 and 15°) to Ti-base and monolithic zirconia crowns. Prefabricated polyvinylidene difluoride (Medentika Implant) abutments were obtained and zirconia (Kingch) and polyetheretherketone (Ceramill) copings were manufactured using a computer-aided design/computer-aided manufacturing system

Abstract Three thiophenol derivatives with different substituent groups, 2-Naphthalenethiol (2-NT), 4-Chlorothiophenol (4-Cl) and p-Toluenethiol (4-MT) were selected to study the corrosion inhibition performance for copper in saline medium. Potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) measurements, and weight loss tests were performed to compare the effect of different

Abstract Herein, short carbon fibers were incorporated in silica sol slurry to enhance the strength of silica sol shell for investment casting. The content of carbon fibers, with a length of 3.0 mm and diameter of 7.32 µm, was varied from 0 to 1 wt. % of the refractory powder mass. The influence of fiber content on rheological properties was systematically investigated. The results showed that the

Abstract The aim of this in vitro study was to evaluate the surface properties of four composite materials with different organic contents and Streptococcus mutans (S. mutans) adhesion to the surfaces after 4 h. TCD-based (CT; Charisma Topaz), Bis-GMA-based (ESQ; Estelite Sigma Quick), UDMA-based (GA;G-aenial Anterior), ormocer-based composites (AF;Admira Fusion) were selected. Polystyrene was used

Abstract Success of all-ceramic dental restorations depends on the cohesive strength of the strong ceramic core, the esthetic veneer and the bonding of their interface. Shear bond strength and failure modes of commercially available all-ceramics systems (IPS e.max Ceram/Press and IPS e.max Ceram/Katana) with adhesively luted experimental ceramic was investigated in the study. The maximum principal

Abstract 5A06 aluminum alloy plates with a thickness of 6.9 mm are welded by laser-metal inert gas (MIG) hybrid welding. To investigate the influence of laser heat input on grain size and microhardness, optical microscope observation, scanning electron microscope (SEM) and microhardness test are conducted. According to the microstructure distribution characteristics, the weld seam can be divided into

Abstract Iron-based alloy coatings were deposited on grey cast iron through plasma transfer arc welding. Results showed that the iron-based alloy coatings are composed of pearlite, martensite, austenite, and secondary carbides. There formed a bonding transformation layer between coating and grey cast iron with the width of about 205 μm. The optimized plasma transfer arc current was 100 A with the coating’s

Abstract In this work, the synthesis route and evaluation of two poly(ionic liquids) (PolyILs) derived from alkylimidazolium imidazolate to be used as corrosion inhibitors (CIs) of API 5L X52 steel exposed to oil reservoir production water (PW) are discussed. The corrosion inhibition performance of the PolyILs was investigated by potentiodynamic polarization (PDP), electrochemical impedance spectroscopy

Abstract This study aimed to investigate the effect of non-thermal plasma systems with and without two favorable surface treatment techniques on the surface roughness (Ra) and shear bond strength (SBS) of polyaryletherketone (PAEK) polymers to veneering composite resin material. A total of 288 (n = 144 for each polymer) Polyetheretherketone (PEEK) and Polyetherketoneketone (PEKK) samples (7  × 7 ×3mm)

Abstract In this paper, the effect of each method consists of a new adhesive layup method of neat adhesive and nanocomposite layer, and simple bonded (SB) joint was proposed in single-lap joints (SLJ). The graphene nanoparticles (GNPs) were added to Araldite 2011 adhesive, and steel 304 was selected as adherends. Two types of graphene (types I and II) were used in nanocomposite construction, that their

Abstract Civil engineering network is virtually orient to develop high-performance materials with eco-friendly construction to welfare of the society. Undoubtedly, water plays an important role in the performance of concrete to provide workability, strength, and other durability properties. Magnetic water being salt free and its properties are turning out to be as good as potable water. When water

Abstract Objective To determine whether bond strength to eroded dentin is similar to values found for sound dentin, before and after additional treatments. Materials and methods MeSH terms and keywords relative to the topics ‘adhesion to dentin’ and ‘eroded dentin’ were searched in the Pubmed and the Scopus databases. In vitro studies that compared the bond strength to sound and eroded dentin were

Abstract The sour corrosion of C1018 carbon steel in CO2-saturated 3.5% NaCl + 100 ppm H2S solution and its inhibition by a low-toxic molecule, 1–benzylimidazole (1–Benz), has been investigated. Electrochemical impedance spectroscopy (EIS) results reveal that 1–Benz can form a strongly-adsorbed and highly protective inhibitor layer on the steel surface. Potentiodynamic polarization (PDP) results confirm

Abstract This study aimed to evaluate the influence of cement type and mechanical cycling on the push-out bond strength (σ) of fiber posts luted to root canals. Eighty bovine single-root teeth were prepared and the roots were included with chemically cured acrylic resin. The specimens were allocated into 8 groups (n = 10) considering the factors ‘cement’ (glass ionomer cement – GIC, resin reinforced

Abstract This systematic review and meta-analysis aimed to evaluate the effect of Er:YAG laser etching on shear bond strength (SBS) of brackets bonded to the enamel and compare to the phosphoric acid (control). Electronic databases (PubMed, Scopus, and Web of Science) and a manual search were conducted up to January 2021. In vitro studies comparing Er:YAG laser and phosphoric acid etching for metal

Abstract In comparison to the traditional reinforced composites, Friction stir processed composites have emerged to be more promising because of their better properties such as strength, hardness, ductility. To note that traditional methods have proved to interfere with the bulk properties of the material and have failed to align with the modern green globe standards and hence, Friction stir processing

Abstract Slippery Liquid Infused Porous Surfaces (SLIPS) are a relatively new and promising development in the surface engineering world. Bio-inspired with superior omniphobicity and robustness, SLIPS have enjoyed success in several scientific applications, spanning multiple industries from the marine environment to the medical field. Inorganic fouling is one such challenge SLIPS have managed to overcome

Abstract This research aims at detecting the hydrophobicity change in Samama (Anthocephalus macrophyllus) wood surface after hydro-thermo-mechanical modification. The modification started by soaking the test piece until water-saturated, followed with pre-compression at 100 °C for an hour. The second stage was impregnation of citric acid 10% using autoclave at pressure 7.5 kg cm−2 for 4 h. The other

Abstract The contact time dependence of adhesion force is not well understood. Adhesion forces between a tipless silica cantilever and some samples with different hydrophilicity were measured to study the dependence at low relative humidity (16 ± 1%). Dependent adhesion forces were observed on hydrophilic samples. The adhesion force has three distinct trends: sharply increasing at first, then followed