Yu. Yu. Rumiantseva, S. O. Lysovenko, V. Z. Turkevych, P. P. Klimchyk, N. M. Bilyavina, V. M. Bushlya, D. O. Savchenko, S. An. Klymenko, D. V. Turkevych
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引用次数: 0
摘要
摘要 介绍了基于立方氮化硼（cBN）、氮化钽（TaN）粘合剂和铝添加物以及各种物理化学性质（氧化物（Al2O3、Mg2B2O5）和非氧化物（SiC、Si3N4））的微纤维的超硬材料的热力学建模结果。实验验证了超硬复合材料各成分之间的化学相互作用的理论计算结果。微纤维的化学性质极大地影响了 cBN 基体材料和 TaN 粘合剂在液态铝存在下的反应相互作用，导致硼化钽的形成。
The Role of Microfibers and Liquid Aluminum in the Reaction between Boron Nitride and Tantalum Nitride
The results of thermodynamic modeling of superhard materials based on cubic boron nitride (cBN) with a tantalum nitride (TaN) binder and additions of aluminum, as well as microfibers of various physicochemical nature (oxide (Al2O3, Mg2B2O5) and non-oxide (SiC, Si3N4)), are presented. The theoretically calculated chemical interactions between the components of superhard composite materials are experimentally verified. The chemical nature of the microfibers significantly affects the reaction interaction between the cBN matrix material and TaN binder in the presence of liquid aluminum, resulting in the formation of tantalum boride.
期刊介绍：
Journal of Superhard Materials presents up-to-date results of basic and applied research on production, properties, and applications of superhard materials and related tools. It publishes the results of fundamental research on physicochemical processes of forming and growth of single-crystal, polycrystalline, and dispersed materials, diamond and diamond-like films; developments of methods for spontaneous and controlled synthesis of superhard materials and methods for static, explosive and epitaxial synthesis. The focus of the journal is large single crystals of synthetic diamonds; elite grinding powders and micron powders of synthetic diamonds and cubic boron nitride; polycrystalline and composite superhard materials based on diamond and cubic boron nitride; diamond and carbide tools for highly efficient metal-working, boring, stone-working, coal mining and geological exploration; articles of ceramic; polishing pastes for high-precision optics; precision lathes for diamond turning; technologies of precise machining of metals, glass, and ceramics. The journal covers all fundamental and technological aspects of synthesis, characterization, properties, devices and applications of these materials. The journal welcomes manuscripts from all countries in the English language.
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