The Effect of Braze Interlayer Thickness on the Mechanical Strength of Alumina Brazed with Ag–CuO Braze Alloys†

作者: Kevin M. Erskine , Alan M. Meier , Vineet V. Joshi , Steven M. Pilgrim

DOI: 10.1002/ADEM.201400128

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摘要: The effect of braze interlayer thickness on the strength alumina brazed with silver-copper oxide reactive air (RAB) alloys was evaluated using a four point bend test configuration. samples had an average fracture 180 MPa or approximately 60 percent monolithic strength. joint values obtained exceeded yield and ultimate tensile silver indicating strong ceramic to metal adhesion development triaxial stress state in interlayer. relatively constant (190 ± MPa) range 0.030 mm 0.230 for all conditions. then decreased down 100 30 as increased from 0.430 loss constraint increasing thickness. In addition, different modes were observed.

参考文章(11)
C. Chr. Schu¨ler, A. Stuck, N. Beck, H. Keser, U. Ta¨ck, Direct silver bonding – an alternative for substrates in power semiconductor packaging Journal of Materials Science: Materials in Electronics. ,vol. 11, pp. 389- 396 ,(2000) , 10.1023/A:1008942502309
R. J. Klassen, G. C. Weatherly, B. Ramaswami, Void nucleation in constrained silver interlayers Metallurgical Transactions A. ,vol. 23, pp. 3281- 3291 ,(1992) , 10.1007/BF03024535
Jared R. Friant, Alan Meier, Jens T. Darsell, K. Scott Weil, Transitions in Wetting Behavior Between Liquid Ag–CuO Alloys and Al2O3Substrates Journal of the American Ceramic Society. ,vol. 95, pp. 1549- 1555 ,(2012) , 10.1111/J.1551-2916.2012.05094.X
John A Fernie, RAL Drew, KM Knowles, None, Joining of engineering ceramics International Materials Reviews. ,vol. 54, pp. 283- 331 ,(2009) , 10.1179/174328009X461078
Jin Yong Kim, John S. Hardy, K. Scott Weil, Effects of CuO Content on the Wetting Behavior and Mechanical Properties of a Ag-CuO Braze for Ceramic Joining Journal of the American Ceramic Society. ,vol. 88, pp. 2521- 2527 ,(2005) , 10.1111/J.1551-2916.2005.00492.X
Kirsten Bobzin, Thomas Schlaefer, Lidong Zhao, Nils Kopp, Arne Schlegel, Brazing of ceramic-to-ceramic and ceramic-to-metal joints in air Frontiers of Mechanical Engineering in China. ,vol. 5, pp. 125- 129 ,(2010) , 10.1007/S11465-010-0007-Z
H. J. Saxton, A. J. West, C. R. Barrett, Deformation and failure of brazed joints—macroscopic considerations Metallurgical Transactions. ,vol. 2, pp. 999- 1007 ,(1971) , 10.1007/BF02664231
A. M. Meier, Pr. Chidambaram, G. R. Edwards, A comparison of the wettability of copper-copper oxide and silver-copper oxide on polycrystalline alumina Journal of Materials Science. ,vol. 30, pp. 4781- 4786 ,(1995) , 10.1007/BF01154485
B.J Dalgleish, M.C Lu, A.G Evans, The strength of ceramics bonded with metals Acta Metallurgica. ,vol. 36, pp. 2029- 2035 ,(1988) , 10.1016/0001-6160(88)90304-5
K. Scott Weil, Jin Yong Kim, John S. Hardy, Jens T. Darsell, The effect of TiO2 on the wetting behavior of silver–copper oxide braze filler metals Scripta Materialia. ,vol. 54, pp. 1071- 1075 ,(2006) , 10.1016/J.SCRIPTAMAT.2005.12.003