{"title":"Specific Features of Measuring the Elasticity Modulus and the Decrement of Oscillations in Superhard Material Polycrystals by the Dynamic Method","authors":"L. M. Devin, M. P. Bezhenar, S. V. Rychev","doi":"10.3103/S1063457623040032","DOIUrl":null,"url":null,"abstract":"<p>The resonant frequencies of natural oscillations in disk-shaped specimens are determined as a function of the elasticity modulus and dimensions of a specimen. The effect produced by the specimen fastening place on the precision of measuring the elasticity modulus and the decrement of oscillation in the series of cubic boron nitride/diamond polycrystal specimens are estimated. All the considered variants of sintered polycrystals can be classified into three groups depending on the diamond powder content. The properties (elasticity modulus, oscillation decrement, sound velocity, Q factor) are different for each of these groups of polycrystals.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"45 4","pages":"249 - 254"},"PeriodicalIF":1.2000,"publicationDate":"2023-09-29","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/S1063457623040032","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}
引用次数: 0
Abstract
The resonant frequencies of natural oscillations in disk-shaped specimens are determined as a function of the elasticity modulus and dimensions of a specimen. The effect produced by the specimen fastening place on the precision of measuring the elasticity modulus and the decrement of oscillation in the series of cubic boron nitride/diamond polycrystal specimens are estimated. All the considered variants of sintered polycrystals can be classified into three groups depending on the diamond powder content. The properties (elasticity modulus, oscillation decrement, sound velocity, Q factor) are different for each of these groups of polycrystals.
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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