Ceramic-metal joining

Details Ceramic-metal joining Ceramic-metal joining

F - Mech Eng,Light,Heat,Weapons

16

B

117/225, 6/4, 11

F16B 5/08 (2006.01) B22F 1/02 (2006.01) B23K 35/365 (2006.01) C04B 37/00 (2006.01) C04B 37/02 (2006.01) C04B 41/85 (2006.01) C04B 41/88 (2006.01) C22C 1/10 (2006.01) C22C 47/08 (2006.01) C22C 49/14 (2006.01) C23C 26/02 (2006.01) H05K 1/03 (2006.01) H05K 3/38 (2006.01)

Patent

CA 2004167

-26- Abstract Ceramic-Metal Joining A method for improving the reliability of a ceramic-metal joint by reducing the dynamic mismatch stresses and strains on the ceramic due to the mismatch in thermal expansions of the two materials. This is done by bonding with a metal layer the ceramic to metal to form a bonding interfacial region between the ceramic and metal; and radially grading the interface region the thermal conductivity, thermal expansion coefficient, or tensile strength of the metal layer. An article in the form of a laterally graded, metallic bonding disc for overcoming problems of dynamic mismatch stresses and strains is also disclosed and claimed.

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