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Brazing Characteristics of Diamond on Various Substrates With Differient Brazing Alloys

Published online by Cambridge University Press:  15 February 2011

Cheng Tzu Kuo ,
Chii Ruey Lin  and
How Min Lien
Cheng Tzu Kuo
Affiliation:
National Chiao Tung University, Institute of Materials Science and Engineering, Hsinchu 30050, Taiwan
Chii Ruey Lin
Affiliation:
National Chiao Tung University, Institute of Materials Science and Engineering, Hsinchu 30050, Taiwan
How Min Lien
Affiliation:
National Chiao Tung University, Institute of Materials Science and Engineering, Hsinchu 30050, Taiwan
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Abstract

The commercial diamond grits and the diamond films deposited by a microwave plasma chemical vapor deposition system were used to study the wetting characteristics of few commercial brazing alloys, e.g., Cu, Ni, Ag-Cu-Zn-Cd-Ni and Ag-Cu-In. The substrates for brazing experiments include AISI-304 stainless steel, AISI-1045 steel and cemented WC insert. The results shows that the wettability of the brazing alloys and the bonding strength between diamond and substrate are strongly influenced by the compositions of the brazing alloys and the surface conditions of diamond and substrate. The wettability of Cu with diamond grit or diamond film depends on the brazing substrate, and is in order of AISI-304 > WC > AISI-1045. The brazing alloys with Cu or Ag as the main component often show a poor brazing strength for diamond/plain carbon steel or diamond/WC.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 383: Symposium I – Mechanical Behavior of Diamond and Other Forms of Carbon , 1995 , 223
Copyright
Copyright © Materials Research Society 1995

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References

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