中文摘要：

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。

英文摘要：

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.