Effect of Silicon Carbide Content on Bulk Electrical Resistance of Free-Sintered AlN–SiC Composites

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

Journal of Superhard Materials Pub Date : 2023-11-13 DOI:10.3103/S1063457623050040

V. I. Chasnyk, D. V. Chasnyk, O. M. Kaidash

引用次数: 0

Abstract—

It is reported that the bulk electrical resistance of AlN–SiC composites decreases from 1.1 × 10⁸ до 3.0 × 10² Ω cm when the content of silicon carbide increases from 20 to 55 wt %. In such composites, with a SiC content less than 50%, the porosity does not exceed 3% and, therefore, does not have a significant effect on the value of electrical resistance. The detected dependence of the electrical resistance on the SiC content has the form of a straight line inclined to the abscissa axis, if the resistance values are given on a logarithmic scale.

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碳化硅含量对自由烧结AlN-SiC复合材料体电阻的影响

摘要:当碳化硅含量从20%增加到55%时，AlN-SiC复合材料的体电阻从1.1 × 108 до 3.0 × 102 Ω cm减小。在这种复合材料中，SiC含量小于50%，孔隙率不超过3%，因此对电阻值没有显著影响。如果电阻值以对数尺度给出，则检测到的电阻与SiC含量的依赖关系具有倾斜于横坐标的直线的形式。

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.