Comparative Analysis of Grain Shape Characteristics and Abrasiveness of Natural Impact and Synthetic Diamond Powders

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

Journal of Superhard Materials Pub Date : 2023-05-09 DOI:10.3103/S1063457623020089

G. A. Petasyuk, Yu. V. Sirota

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Abstract

A comparative quantitative analysis of the shape characteristics and abrasiveness of the grains of powders of natural impact and synthetic diamond is performed. The characteristics of the grain morphology of diamond powders, which have an effect on their abrasive properties, are studied. The shape and specific perimeter of the grain projection, the coefficient of their flattening, and the external specific surface area of the powder are accepted as such characteristics. Differential shape similarity indices of the grain projections of investigated powders and their uniformity with respect to these characteristics as signs of powder quality are determined. The tendencies and degrees of variation of the analyzed characteristics during the transition from impacted diamond powders to synthetic diamond powders are established. For two types of origin of the powder material, a quantitative analysis of the relationship between the detected trends of changes in the grain morphology characteristics of diamond powders and their abrasiveness is performed.

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天然冲击金刚石粉与合成金刚石粉的颗粒形态特征及磨耗性比较分析

对天然冲击粉和人造金刚石的颗粒形状特征和磨耗性进行了比较定量分析。研究了金刚石粉末的晶粒形貌特征对其磨料性能的影响。颗粒投影的形状和比周长、它们的扁化系数和粉末的外比表面积都被接受为这些特征。确定了所研究粉末的颗粒投影的不同形状相似指数及其相对于这些特征作为粉末质量标志的均匀性。建立了从冲击金刚石粉到合成金刚石粉过渡过程中所分析特性的变化趋势和程度。对于两种类型的粉末材料来源，定量分析了金刚石粉末颗粒形貌特征变化趋势与其磨耗性之间的关系。

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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.