TITLE

Effect of Degassing on the Formation of Polycrystals from Diamond Nanopowders Produced by Detonation and Static Syntheses

AUTHOR(S)
Bochechka, A.A.
PUB. DATE
April 2004
SOURCE
Physics of the Solid State;Apr2004, Vol. 46 Issue 4, p668
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The sintering of diamond nanopowders produced by detonation and static synthesis and degassed through vacuum thermal treatment is studied at an initial pressure of 8 GPa in the temperature range 12001600°C. Chemical modification of the initial nanopowders, in combination with thermal treatment in vacuum and encapsulation of the working volume, is shown to suppress graphitization of diamond during sintering, thereby increasing the strength and hardness of polycrystals thus obtained.
ACCESSION #
12862655

 

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