Effects of Joining Pressure and Deformation on the Strength and Microstructure of Diffusion‐Bonded Silicon Carbide
作者:
David DeLeeuw,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 3
页码: 725-727
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb07868.x
出版商: Blackwell Publishing Ltd
关键词: silicon carbide;diffusion;bonding;hot pressing;joining
数据来源: WILEY
摘要:
The effects of joining pressure and deformation on the strength and microstructure of diffusion‐bonded SiC were examined using a hot‐press to apply varying amounts of interfacial pressure and a close‐fitting die to restrict deformation. SiC substrates were successfully diffusion bonded at 1950° and 2100°C. Joints which had uniform grain structure across the joint interface and bend strengths up to 300 MPa (44 ksi) were achieved. Pressing pressure was found to be a requirement for producing reasonable joint strength. It was also found that macroscopic deformation (>4% joint area expansion) is not necessary for effective diffusion bonding. Various methods for joining SiC are reviewed with regard to ease of processing, use limitations, and joint s
点击下载:
PDF
(291KB)
返 回