ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Joining of ceramics is of importance from both technical and economical points of view.Brazing is a widely used process to join ceramics. In order to increase the working temperature and weldstrength of joints, a high temperature brazing process using Ni-Cr-SiC powders (consisting of Ni, Cr andSiC powders) as filler to join recrystallized SiC ceramic has been investigated. The obtained optimizedtechnological parameters are joining temperature of 1360°C, holding time of 5min and filler mass of280mg. Under these conditions the maximum relative bending strength of joints, 70.5%, is achieved.Microstructure and phase analysis reveals that interdiffusions and chemical reactions take place in theweld zone. A reaction layer, of which the major phase is Ni2Si, exists between the welding base materialSiC ceramic and the filler reaction product layer, called as interlayer, of which the major phase is Cr23C6
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2394.pdf
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