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SUMMARY:Thermal damage study on diamond tools at varying laser heating pow
 er and temperature by Raman spectroscopy
DTSTART;VALUE=DATE-TIME:20110714T103000Z
DTEND;VALUE=DATE-TIME:20110714T104500Z
DTSTAMP;VALUE=DATE-TIME:20260616T155548Z
UID:indico-contribution-5181@events.saip.org.za
DESCRIPTION:Speakers: Bathusile Masina (CSIR-National Laser Centre)\nDiamo
 nd tools are generally made of sintered polycrystalline diamond (PCD) on a
  hard metal tungsten carbide (WC-Co) substrate during the High Pressure Hi
 gh Temperature (HPHT) process. The diamond tools are used widely as cuttin
 g and drilling tools due to their unique combination of superior propertie
 s. However\, there are several issues that need to be resolved about the d
 iamond tools. At present it is known that diamond tools degrade with time 
 as it is normally used at high temperatures\, but what is not known is the
  damage mechanism and how the degradation varies as a function of temperat
 ure. In this study\, we have made use of a laser based system to raise the
  temperature of the diamond tool and measure the diamond tool temperature.
  A study of the thermal damage on the diamond tool with respect to the las
 er heating power and temperature has been carried out using Raman spectros
 copy\; to determine the structure and composition of the resulting diamond
  tool. We have shown the radical changes on the diamond tool as the laser 
 heating power and temperature increases.\n\nhttps://events.saip.org.za/eve
 nt/7/contributions/5181/
LOCATION: Acro1
URL:https://events.saip.org.za/event/7/contributions/5181/
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