Determination of Thermal Properties of Carbon Materials above 2000 °C for Application in High Temperature Crystal Growth

IF 1.5 4区 材料科学 Q3 CRYSTALLOGRAPHY
Jonas Ihle, Peter J. Wellmann
{"title":"Determination of Thermal Properties of Carbon Materials above 2000 °C for Application in High Temperature Crystal Growth","authors":"Jonas Ihle, Peter J. Wellmann","doi":"10.1002/crat.202400080","DOIUrl":null,"url":null,"abstract":"This work reports on the determination of the heat conductivity of high temperature stable carbon materials in the temperature range well above 2000 °C where classic material characterization methods fail. Dense graphite (DG) materials as well as rigid and soft felt isolation (RFI/SFI) components have been investigated which are used during crystal growth of SiC by the physical vapor transport method (PVT) in the temperature regime of 2000 and 2400 °C. The applied materials characterization methods include low temperature physical heat conductivity measurements using laser flash analysis (LFA) in the temperature range 25–1200 °C, data extrapolation to elevated temperatures up to 2400 °C, and a correlation of heating processes and computer simulation of the temperature field of different hot zone designs. Using this approach, the calculated temperatures and experimentally determined values with an error of less than ± 2% at 2400 °C can be merged.","PeriodicalId":10797,"journal":{"name":"Crystal Research and Technology","volume":"30 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystal Research and Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/crat.202400080","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0

Abstract

This work reports on the determination of the heat conductivity of high temperature stable carbon materials in the temperature range well above 2000 °C where classic material characterization methods fail. Dense graphite (DG) materials as well as rigid and soft felt isolation (RFI/SFI) components have been investigated which are used during crystal growth of SiC by the physical vapor transport method (PVT) in the temperature regime of 2000 and 2400 °C. The applied materials characterization methods include low temperature physical heat conductivity measurements using laser flash analysis (LFA) in the temperature range 25–1200 °C, data extrapolation to elevated temperatures up to 2400 °C, and a correlation of heating processes and computer simulation of the temperature field of different hot zone designs. Using this approach, the calculated temperatures and experimentally determined values with an error of less than ± 2% at 2400 °C can be merged.
测定 2000 °C 以上碳材料的热性能,以应用于高温晶体生长
这项工作报告了高温稳定碳材料在远高于 2000 ℃ 的温度范围内的热传导率测定结果,而在这一温度范围内,传统的材料表征方法是失效的。研究了致密石墨(DG)材料以及硬质和软质毡隔离(RFI/SFI)组件,这些组件在 2000 ℃ 和 2400 ℃ 温度范围内通过物理气相传输法(PVT)用于碳化硅晶体生长。应用的材料表征方法包括在 25-1200 °C 温度范围内使用激光闪光分析 (LFA) 进行低温物理热传导测量,将数据推断到最高 2400 °C 的高温,以及加热过程的相关性和不同热区设计的温度场计算机模拟。利用这种方法,可以合并 2400 °C时误差小于± 2% 的计算温度和实验测定值。
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
自引率
6.70%
发文量
121
审稿时长
1.9 months
期刊介绍: The journal Crystal Research and Technology is a pure online Journal (since 2012). Crystal Research and Technology is an international journal examining all aspects of research within experimental, industrial, and theoretical crystallography. The journal covers the relevant aspects of -crystal growth techniques and phenomena (including bulk growth, thin films) -modern crystalline materials (e.g. smart materials, nanocrystals, quasicrystals, liquid crystals) -industrial crystallisation -application of crystals in materials science, electronics, data storage, and optics -experimental, simulation and theoretical studies of the structural properties of crystals -crystallographic computing
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信