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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)

Editor
Baosong Ma
Baosong Ma
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ISBN:
9780791802922
No. of Pages:
1760
Publisher:
ASME Press
Publication date:
2009

Diamonds suffering from thermal damage at high temperature are observed through scanning electron microscope before and after diamonds surface are plated with Ni-W-B film by electroless plating. The observed results show that the diamond with a thin film of Ni-W-B alloy suffers from plane damage and the bare diamond suffers from body damage. Thermodynamic analysis and X-rays diffraction results indicate that W in the film firstly acts with oxygen and then oxide deoxidizes and combines with the surface carbon atoms to form a symmetrical carbide film coating on diamond, which is the protection mechanism of the Ni-W-B alloy acting on...

Abstract
Introduction
Thermal Damage Behaviors of Ni-W-B Clad Diamonds at High Temperature
Protection Mechanism of the Thin Film to Heating Diamond Coated with Ni-W-B Alloy
Conclusions
References
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