Investigation of Ni-B Alloys for Joining of TiB2 Ultra-High-Temperature Ceramic

被引：0
作者：
L. Xi
I. Kaban
R. Nowak
G. Bruzda
N. Sobczak
M. Stoica
J. Eckert
机构：
[1] IFW Dresden,Institute for Complex Materials
[2] TU Dresden,Institute of Materials Science
[3] Foundry Research Institute,Center for High
[4] Motor Transport Institute,Temperature Studies
[5] Erich Schmid Institute of Materials Science,Department Materials Physics
[6] Austrian Academy of Sciences,undefined
[7] Montanuniversität Leoben,undefined
来源：
Journal of Materials Engineering and Performance | 2016年 / 25卷
关键词：
interfacial interactions; joining; Ni-B alloys; TiB; ceramic; wetting;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Melting and wetting behavior of Ni83B17 and Ni50B50 alloys on TiB2 ceramic are investigated upon heating to 1105 and 1050 °C, respectively, using the sessile drop technique. Both alloys show a very good wetting on the TiB2 substrates immediately after incipient melting. Liquid Ni50B50 alloy is revealed not to dissolve TiB2, but penetrates along the grain boundaries into the ceramic. Upon heating and melting of the Ni83B17 alloy on TiB2, a small amount of ceramic is dissolved and the ternary Ni21Ti2B6 phase is formed. Whereas multiple microcracks are observed at the Ni83B17/TiB2 interface, the Ni50B50/TiB2 couple is well bonded and free of interfacial microcracks.
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页码：3204 / 3210
页数：6
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