{"title":"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","authors":"G. A. Petasyuk, Yu. V. Sirota","doi":"10.3103/S1063457623020089","DOIUrl":null,"url":null,"abstract":"<p>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.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"45 2","pages":"150 - 157"},"PeriodicalIF":1.2000,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparative Analysis of Grain Shape Characteristics and Abrasiveness of Natural Impact and Synthetic Diamond Powders\",\"authors\":\"G. A. Petasyuk, Yu. V. Sirota\",\"doi\":\"10.3103/S1063457623020089\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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.</p>\",\"PeriodicalId\":670,\"journal\":{\"name\":\"Journal of Superhard Materials\",\"volume\":\"45 2\",\"pages\":\"150 - 157\"},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2023-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Superhard Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1063457623020089\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superhard Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.3103/S1063457623020089","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Comparative Analysis of Grain Shape Characteristics and Abrasiveness of Natural Impact and Synthetic Diamond Powders
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.
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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