燃烧条件下TiB2-TiC-Al2O3和CrB2-Al2O3复合材料的合成

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Eurasian Chemico-Technological Journal Pub Date : 2021-08-30 DOI:10.18321/ectj1081

A. J. Seidualiyeva, K. Kamunur, R. Abdulkarimova, U. Onuralp, A. Batkal

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引用次数: 0

摘要

硼化物和碳化物由于其耐高温氧化、高硬度、耐磨性、导电性和导热性等独特的组合，吸引了耐热超硬结构材料开发商的注意，通过自蔓延高温合成（SHS）和机械活化（MA）相结合的方法制备了CrB2-Al2O3。研究了初始组分的组成、SHS的条件和预MA对基于碳化钛和钛、铬硼化物的SHS复合材料微观结构和相组成的影响。通过X射线衍射分析和扫描电子显微镜对SHS产物进行了检测。在SHS产品中发现了铬、钛、氧化铝及其尖晶石的硼化物的高温相。

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Synthesis of Composite Materials based on TiB2–TiC–Al2O3 and CrB2-Al2O3 in the Combustion Conditions

Borides and carbides attract the attention of developers of heat-resistant and super hard structural materials due to a unique combination of their resistance to high-temperature oxidation, high hardness, wear resistance, electrical and thermal conductivity and etc. The article presents experimental results on obtaining composites based on TiB2-TiC-Al2O3, CrB2-Al2O3 by a method combining self-propagating high-temperature synthesis (SHS) and mechanical activation (MA). The influence of the composition of the initial components, the conditions of SHS and preliminary MA on the formation of the microstructure and phase composition of the SHS-composite based on titanium carbide and titanium, chromium borides has been studied. The SHS products were examined by X-ray diffraction analysis and a scanning electron microscope. High-temperature phases of borides of chromium, titanium, aluminum oxide and their spinel are found in SHS products.

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来源期刊

Eurasian Chemico-Technological Journal CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

20 weeks

期刊介绍： The journal is designed for publication of experimental and theoretical investigation results in the field of chemistry and chemical technology. Among priority fields that emphasized by chemical science are as follows: advanced materials and chemical technologies, current issues of organic synthesis and chemistry of natural compounds, physical chemistry, chemical physics, electro-photo-radiative-plasma chemistry, colloids, nanotechnologies, catalysis and surface-active materials, polymers, biochemistry.