Effect of Varying Graphite Concentration on Electrodynamic Properties of AlN-Based Composite Materials

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

Journal of Superhard Materials Pub Date : 2024-01-18 DOI:10.3103/S1063457623060102

T. B. Serbeniuk, T. O. Prikhna, V. B. Sverdun, V. V. Oliynyk, V. I. Grygoruk, V. V. Zagorodnii, M. V. Karpets, S. S. Ponomaryov, A. A. Marchenko, L. O. Polikarpova

{"title":"Effect of Varying Graphite Concentration on Electrodynamic Properties of AlN-Based Composite Materials","authors":"T. B. Serbeniuk, T. O. Prikhna, V. B. Sverdun, V. V. Oliynyk, V. I. Grygoruk, V. V. Zagorodnii, M. V. Karpets, S. S. Ponomaryov, A. A. Marchenko, L. O. Polikarpova","doi":"10.3103/S1063457623060102","DOIUrl":null,"url":null,"abstract":"<p>The electrodynamic properties of new composite materials, produced by free sintering based on AlN with the addition of 1–5 wt % of diamond powder, were investigated in the frequency range of 1–10 GHz. Structural and phase composition studies revealed a graphitization process of diamond powder during sintering. According to X-ray phase analysis, after refining the results using the Rietveld method, the graphite phase content was 0.8, 1.7, and 3.8 wt % for materials with the addition of 1, 3, and 5 wt % of diamond powder before sintering, respectively. The investigation of electrodynamic characteristics demonstrated an increase in both real and imaginary dielectric permittivity with increasing graphite concentration. Dielectric loss at a frequency of 10 GHz increased from 0.05 to 0.08 for composites as the graphite phase concentration increased from 0.8 to 3.8 wt %.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"45 6","pages":"424 - 433"},"PeriodicalIF":1.2000,"publicationDate":"2024-01-18","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/S1063457623060102","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 electrodynamic properties of new composite materials, produced by free sintering based on AlN with the addition of 1–5 wt % of diamond powder, were investigated in the frequency range of 1–10 GHz. Structural and phase composition studies revealed a graphitization process of diamond powder during sintering. According to X-ray phase analysis, after refining the results using the Rietveld method, the graphite phase content was 0.8, 1.7, and 3.8 wt % for materials with the addition of 1, 3, and 5 wt % of diamond powder before sintering, respectively. The investigation of electrodynamic characteristics demonstrated an increase in both real and imaginary dielectric permittivity with increasing graphite concentration. Dielectric loss at a frequency of 10 GHz increased from 0.05 to 0.08 for composites as the graphite phase concentration increased from 0.8 to 3.8 wt %.

Abstract Image

查看原文本刊更多论文

不同石墨浓度对氮化铝基复合材料电动特性的影响

摘要研究了以氮化铝为基础，添加 1-5 wt % 的金刚石粉末，通过自由烧结生产的新型复合材料在 1-10 GHz 频率范围内的电动特性。结构和相组成研究揭示了烧结过程中金刚石粉末的石墨化过程。根据 X 射线相分析，在使用 Rietveld 方法对结果进行细化后，烧结前添加 1、3 和 5 wt % 金刚石粉末的材料的石墨相含量分别为 0.8、1.7 和 3.8 wt %。对电动特性的研究表明，随着石墨浓度的增加，实介电常数和虚介电常数都会增加。随着石墨相浓度从 0.8 wt % 增加到 3.8 wt %，复合材料在 10 GHz 频率下的介电损耗从 0.05 增加到 0.08。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.