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http://dx.doi.org/10.4191/KCERS.2002.39.10.955

Effects of Brazing Processing Condition on Mechanical Properties and Reliability of Si3N/S.S. 316 Joints  

Chang, Hwi-Souck (Department Inorganic Materials Engineering, Hanyang University)
Park, Sang-Whan (Multi-functional Ceramics Research Center, KIST)
Choi, Sung-Churl (Department Inorganic Materials Engineering, Hanyang University)
Publication Information
Journal of the Korean Ceramic Society / v.39, no.10, 2002 , pp. 955-962 More about this Journal
Abstract
The microstructure change of brazed $Si_3N_4$/Stainless steel 316 joint with Cu buffer layer were examined to clarify the effects of brazing process conditions such as brazing time and temperature on the mechanical properties and reliability of brazed joints. For the brazed joint above 900${\circ}C$, the Cu buffer layer was completely dissolved into brazing alloy and the thickness of reaction product formed at $Si_3N_4$/brazing alloy joint interface was abruptly increased, which could increase the amounts of residual stress developed in the joint. The fracture strength of brazed $Si_3N_4$/Stainless steel 316 joint with Cu buffer layer at 950${\circ}C$ was much reduced comparing to those of joints brazed at the lower temperature. But, it was found that the effects of brazing time was not critical on the mechanical properties as well as the reliability of $Si_3N_4$/Stainless steel 316 joint with Cu buffer layer brazed at the temperature below 900${\circ}C$.
Keywords
Silicon nitride; Brazing; Buffer layer; Joint strength; Reliability;
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  • Reference
1 M. G. Nicholas, 'Active Metal Brazing,' Br. Ceram. Trans. J., 85 144-46 (1986)
2 W. B. Hanson, K. I. Ironside and J. A. Pernie, 'Active Metal Brazing of Zirconia,' Acta Materiatia, 48 4673-76 (2000)   DOI   ScienceOn
3 A. H. ElSawy and M. F. Fahmy, 'Brazing of $Si_3N_4$ Ceramic to Copper,' J. Material Processing Technotogy, 77 266-72 (1998)   DOI   ScienceOn
4 K. Suganuma, 'Influence of Shape and Size on Residual Stress in Ceramic/Metal Joining,' J. Mater. Sci., 22 [8] 2702-06 (1987)   DOI   ScienceOn
5 S. I. Tanaka, 'Residual Stress Relaxation in $Si_3N_4$/Metal Joined System. Metal ceramic Joints,' MRS Int'I Meeting on Advanced Materiats, 8 125-30 (1988)
6 J. B. Watchman, 'Mechanical Properties of Ceramics,' John wiley & sons (1996)
7 M. L. Santella, 'A Review of Techniques for Joining Advanced Ceramics,' Ceram. Bull., 71 [6] 947-54 (1992)
8 C. H. Bates, 'Joining of Nonoxide Ceramics for High temperature Applications,' Ceram. Butl., 69 [3] 350-56 (1990)
9 S. D. Peteves, 'Joining Nitride Ceramics,' Ceram. Int., 22 527-33 (1996)   DOI   ScienceOn
10 T. W. Kim, H. S. Chang and S. W. Park, 'Mechanical Properties of $Si_3N_4$/Steel Joint with NiInterlayer,' ACS. Ceram.Ene. & Sci. Proceedings, 11 321-25 (2001)
11 S. M. Johnson, 'Mechanical Behavior of Brazed Silicon Nitride,' ACS. Ceramic Engineering & Science Proceedings, 10 1846-53 (1989)   DOI
12 Binary Alloy Phase Diagrams, ASM., 1 19 (1986)