期刊
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
卷 53, 期 2, 页码 511-516出版社
AUSTRALIAN CERAMIC SOCIETY
DOI: 10.1007/s41779-017-0061-7
关键词
Silicon carbide; Differential thermal analysis; Brazing; Microstructure; Mechanical properties
资金
- National Natural Science Foundation [51501038, 51671054]
- Fundamental Research Funds for the Central Universities in China
In many industrial applications, large-sized SiC components are increasingly desired through a conventional and pressureless brazing method. In present study, Ni-Si-Ti powder mixtures containing 0 similar to 10 wt.% Ti were used to braze SiC ceramics. Differential thermal analysis (DTA) and wetting tests were carried out to determine the appropriate joining temperature to be at 1450 degrees C. Microstructure, phase constituents, and mechanical strength of the prepared SiC joints were characterized. For a brazing composition without Ti addition, the interlayer primarily consists of NiSi and Ni3Si2 phases. With the addition of Ti, Ni49Ti14Si37 phase is newly formed within the interlayer besides the Ni-Si compounds. The bending strengths of SiC joints locate in 66 similar to 75 MPa as brazed at present conditions and the specimens generally fracture from the interface between alloy interlayer and SiC substrate.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据