Fabrication of Ni-Al/diamond composite based on layered and gradient structures of SHS system

In this paper layered and gradient structures of Ni-Al SHS system were adopted to manufacture Ni-Al/diamond composites. The effect of the layered and the diamond mesh gradient structures of Ni-Al/diamond on the SHS process and the microstructure of the composites were investigated. It is fo...

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Bibliographic Details
Main Authors: Lu Jiafeng, Zhang Fenglin, Zhou Yumei, Huang Huiping, Wang Chengyong, Wu Shanghua, Lin Huatai
Format: Article
Language:English
Published: International Institute for the Science of Sintering, Beograd 2017-01-01
Series:Science of Sintering
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0350-820X/2017/0350-820X1702149L.pdf
Description
Summary:In this paper layered and gradient structures of Ni-Al SHS system were adopted to manufacture Ni-Al/diamond composites. The effect of the layered and the diamond mesh gradient structures of Ni-Al/diamond on the SHS process and the microstructure of the composites were investigated. It is found that with the increasing of the number of layers, the combustion wave velocity is decreased. The combustion wave velocity for diamond mesh size gradient structure of Ni-Al SHS is faster than that for the layered structure. A well bonding can be formed between diamond and the matrix in layered and gradient structure Ni-Al/diamond composites due to the melt of Ni-Cr brazing alloy.
ISSN:0350-820X
1820-7413