Features of moire patterns in HPHT-grown diamond single crystals. [The 3rd report.] Summaried by Kim Bumyong 1998007662 . Features of moire patterns in HPHT-grown diamond single crystals. Long-Wei Yin a,), Mu-Sen Li a, Dong-Sheng Sunm a, Zeng-Da Zou a, Yu-Xian Liu a, Zhao-Yin Hao b
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Features of moire patternsin HPHT-grown diamond single crystals
[The 3rd report.]
Summaried by Kim Bumyong
Features of moire patternsin HPHT-grown diamondsingle crystals
Long-Wei Yin a,), Mu-Sen Li a, Dong-Sheng Sunm a, Zeng-Da Zou a, Yu-Xian Liu a,
Zhao-Yin Hao b
a College of Materials Science and Engineering, Shandong UniOersity, Jinan 250061, PR China
b National Key Laboratory for Superhard Materials, Jilin UniOersity, Changchun 130012, PR China
Received 24 November 2000; accepted 15 December 2000
Rapid cooling from high temperature
The supersaturated vacancies
The formation of vacancy disc and its subsequent collapse form a stacking fault bounded by a Frank partial dislocation. The Frank partial dislocation may dissociate into a low-energy stair-rod dislocation and a Shockley partial dislocation on an intersecting slip plane according to a reaction of the type
Then the Shockley partial dislocations on different (111) planes react with each other to form stair-rod dislocation according to the reaction
The distorted fringes : by strain field, which is related to the thermal stress associated with the micro-inclusions. Ex) (FeNi)23C6, Fe3C, amorphous graphite, SiC or Ni3C are trapped in the HPHT-grown diamonds.
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