高温高压下金刚石单晶生长过程的声发射动态特征

刘磊; 张元培; 王风; 陈冲; 李木森

doi:10.11858/gywlxb.2010.06.002

高温高压下金刚石单晶生长过程的声发射动态特征

doi: 10.11858/gywlxb.2010.06.002

刘磊^1,2,
张元培^1,2,
王风²,
陈冲²,
李木森^1,2,

1.
山东大学材料液固结构演变与加工教育部重点实验室，山东济南 250061；
2.
山东省超硬材料工程技术研究中心，山东邹城 273500

详细信息

通讯作者:
李木森

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出版历程
- 收稿日期: 2009-11-23
- 修回日期: 2010-04-28
- 发布日期: 2010-12-15

Acoustic Emission Dynamic Characteristics of Growth Process of Diamond Single Crystals under HPHT

1.
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, China;
2.
Shandong Engineering Research Centre for Super-Hard Materials, Zoucheng 273500, China

More Information

Corresponding author: LI Mu-Sen

摘要

摘要: 采用声发射技术对高温高压下人造金刚石单晶的生长过程进行了动态检测。结合合成压块的断口形貌，对金刚石单晶生长过程对应的主要声发射参数进行了分析。结果表明，声发射信号的能量计数、振铃计数、幅度和上升时间等特征参数能客观反映金刚石单晶在高温高压下的动态生长规律，为研究金刚石单晶的生长机制提供了重要的实验依据。
- 声发射检测技术 /
- 金刚石单晶 /
- 高温高压 /
- 特征参数
Abstract: The growth process of synthetic diamond single crystals under high-pressure and high-temperature (HPHT) was tested with acoustic emission technique. Associated with the fracture morphologies of the synthetic mass, the main acoustic emission dynamic parameters corresponding to growth process of diamond single crystals were analyzed. The results indicate that the energy, count, amplitude and rise time of recorded acoustic emission signals can be objective reflection of the dynamic growth process of diamond single crystals under HPHT. The research provides the important experimental basis for studying the in-situ reaction mechanics of synthetic diamond single crystals under HPHT by using acoustic emission testing.
- acoustic emission testing /
- diamond single crystal /
- high-pressure and high-temperature /
- characteristic parameter

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