Thermal Explosion Reaction Induced Rapid Deposition of Metal Carbides on the Surface of Diamond Particles

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Superhard Materials Pub Date : 2025-05-26 DOI:10.3103/S106345762502011X

He Zhao, Yanhong Wang, Yitong Luo, Baoyan Liang

引用次数: 0

Abstract

A mixture of metal (Ti, Cr, or W) powders and diamond particles was subjected to vacuum-heat treatment. The high temperature generated by the thermal-explosion reaction of the Ni–Al compact promoted the rapid sublimation of the metal powders, forming a carbide coating. Results showed that these metal elements evaporated rapidly and were deposited onto the surface of the diamond particles after the thermal explosion. The difference carbide coating was formed onto the surface of diamond particles. The carbides that formed in the coating were nanoscale or sub-microscale. Finally, the formation mechanism of coatings was explained from the perspectives of reaction thermodynamics and saturated evaporation pressure.

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热爆炸反应诱导金属碳化物在金刚石颗粒表面快速沉积

将金属（钛、铬或钨）粉末和金刚石颗粒的混合物进行真空热处理。Ni-Al致密体的热爆反应产生的高温促进了金属粉末的快速升华，形成碳化物涂层。结果表明，这些金属元素在热爆炸后迅速蒸发并沉积在金刚石颗粒表面。金刚石颗粒表面形成差异碳化物涂层。涂层中形成的碳化物为纳米级或亚微米级。最后，从反应热力学和饱和蒸发压力的角度解释了涂层的形成机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Superhard Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.80

自引率

66.70%

发文量

审稿时长

2 months

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.