In this study, the Al₅₉Cu_25.5Fe_12.5B₃ nanoquasicrystalline alloy and related crystalline phases were synthesized through mechanical alloying using a high-energy ball milling and consolidated by a cold isostatic pressing apparatus. This paper focuses on the synthesis, structural and microstructural evolutions, thermal stability, microhardness, and electrical and optical properties of the Al₅₉Cu_25.5Fe_12.5B₃ nanoquasicrystalline alloy for solar selective absorber usages. The structural evolutions of the mechanically alloyed and heat-treated AlCuFeB powders were investigated by X-ray diffractometry. Accordingly, the effect of milling time and heat treatment on the formation of quasicrystalline and related crystalline phases were studied in the AlCuFeB alloy system. The microstructure, morphology, and chemical microanalysis of the un-milled and as-milled powders were examined by field-emission scanning electron microscopy and energy-dispersive X-ray spectroscopy. The composition of the as-milled AlCuFeB powders was estimated employing inductively coupled plasma-atomic emission spectroscopy. The thermal stability of the AlCuFeB powders was recorded by differential thermal analysis, and the weight gain of the particles during annealing was investigated through thermogravimetric analysis. The nanostructured Al₅₉Cu_25.5Fe_12.5B₃ stable quasicrystalline phase and crystalline Al(Cu,Fe) solid-solution were synthesized by the ultrafast milling procedure in 1 h. The rationale behind using the term ultrafast synthesis is to synthesize the QC i-phase only by the high-energy ball milling procedure in short-term ball milling without subsequent annealing treatment. However, the single quasicrystalline phase could not be obtained even after the annealing treatment. The quasicrystalline size was calculated by the Williamson–Hall method and optimized by the Rietveld refinement procedure, and it was found that the size is varied between 53 and 61 nm. Furthermore, the particle size distribution of the as-milled AlCuFeB powders was measured using laser static light scattering, which ranges from 0.1 to 50 μm. The microhardness of the consolidated as-milled and heat-treated samples was estimated utilizing the Vickers microhardness indenter. At the same time, their electrical resistivity was assessed by the four-point probe method at room temperature. The spectral analyses of absorption on the consolidated as-milled samples were carried out in the ultraviolet, visible, and near-infrared regions. It was found that the presence of the quasicrystalline phase in the AlCuFeB alloy prominently improves the microhardness, electrical resistivity, and particularly sunlight absorptance.

在这项研究中，Al ₅₉ Cu _25.5 Fe _12.5 B ₃纳米准晶合金和相关的晶相是通过使用高能球磨机进行机械合金化合成的，并通过冷等静压设备进行固结。本文着重于Al ₅₉ Cu _25.5 Fe _12.5 B ₃的合成，结构和微观结构演变，热稳定性，显微硬度以及电学和光学性质。用于太阳能选择性吸收剂的纳米准晶体合金。通过X射线衍射研究了机械合金化和热处理过的AlCuFeB粉末的结构演变。因此，在AlCuFeB合金体系中研究了研磨时间和热处理对准晶相和相关晶相形成的影响。通过场发射扫描电子显微镜和能量色散X射线光谱法检查了未研磨和研磨后粉末的微观结构，形态和化学显微分析。使用电感耦合等离子体原子发射光谱法估算研磨后的AlCuFeB粉末的组成。通过差示热分析记录了AlCuFeB粉末的热稳定性，通过热重分析研究了退火过程中颗粒的重量增加。纳米Al₅₉铜_25.5铁_12.5 B ₃在1 h内通过超快磨合成了稳定的准晶相和Al（Cu，Fe）晶体固溶体。使用术语“超快速合成”的基本原理是仅在短期球磨过程中通过高能球磨过程合成QC i相，而无需随后的退火处理。但是，即使经过退火处理也无法获得单准晶相。通过Williamson-Hall方法计算准晶体尺寸，并通过Rietveld精炼程序对其进行优化，发现尺寸在53至61 nm之间变化。此外，使用激光静态光散射测量研磨后的AlCuFeB粉末的粒度分布，其范围为0.1至50μm。使用维氏显微硬度计估算经研磨和热处理的固结试样的显微硬度。同时，在室温下通过四点探针法评估它们的电阻率。在紫外，可见和近红外区域对合并的研磨样品进行吸收光谱分析。发现在AlCuFeB合金中准晶相的存在显着改善了显微硬度，电阻率，特别是提高了日光吸收率。可见和近红外区域。发现在AlCuFeB合金中准晶相的存在显着改善了显微硬度，电阻率，特别是提高了日光吸收率。可见和近红外区域。发现在AlCuFeB合金中准晶相的存在显着改善了显微硬度，电阻率，特别是提高了日光吸收率。