Joining Si3N4to type 405 steel with soft metal interlayers
- 1 November 1986
- journal article
- research article
- Published by SAGE Publications in Materials Science and Technology
- Vol. 2 (11), 1156-1161
- https://doi.org/10.1179/mst.1986.2.11.1156
Abstract
The suitability of four pure metals, Ni, Fe, Ti, and Nb, as interlayers for bonding silicon nitride to type 405 ferritic stainless steel has been examined. Bonding was carried out by hot isostatic pressing at temperatures between 1473 and 1673 K under a pressure of 100 MPa. Of the metals tested, Fe and Nb formed the strongest interfacial bonds with Si3N4. To reduce the influence of residual stress in joints, Fe/W and Nb/W laminated interlayers were also examined. The use of W restricted the contraction of Fe or Nb, and the Si3N4/steel joints with these interlayers had a tensile strength of more than 50 MN m−2. A low-pressure (10 MPa) bonding process was also used for the Fe/W interlayer. MST/470Keywords
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