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Chinese Journal of High Pressure Physics  > 2010  >  24(4): 255-259 .
LIU Lei, ZHANG Yuan-Pei, LAN Wei-Ke, LI He-Sheng, LI Mu-Sen. Preliminary Studies on Real-Time Acoustic Emission Monitoring in Single Crystal Diamond Growth[J]. Chinese Journal of High Pressure Physics, 2010, 24(4): 255-259 . doi: 10.11858/gywlxb.2010.04.003
Citation: LIU Lei, ZHANG Yuan-Pei, LAN Wei-Ke, LI He-Sheng, LI Mu-Sen. Preliminary Studies on Real-Time Acoustic Emission Monitoring in Single Crystal Diamond Growth[J]. Chinese Journal of High Pressure Physics, 2010, 24(4): 255-259 . doi: 10.11858/gywlxb.2010.04.003
shu

Preliminary Studies on Real-Time Acoustic Emission Monitoring in Single Crystal Diamond Growth

doi: 10.11858/gywlxb.2010.04.003
  • 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
  • Received Date: 12 Jul 2009
  • Rev Recd Date: 28 Sep 2009
  • Publish Date: 15 Aug 2010
    Abstract
  • The growth process of synthetic diamond single crystals under high-pressure and high-temperature (HPHT) was tested with acoustic emission (AE) technique. A real-time AE monitoring system was built by using a PCI-8 acoustic emission instrument and a LMD-800 hinge-type cubic-anvil press. The characteristics and their variations of the AE signals in the growth and non-growth processes of the diamonds were compared. Furthermore, the spectrum analysis of the AE signals was performed. The experimental results indicated that the AE signals corresponding to the diamond growth process exhibit a low frequency feature. Accordingly, AE testing can be used to study the in-situ reaction mechanics of synthetic diamond single crystals under HPHT.

     

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