Transient liquid phase bonding of titanium to aluminium nitride
Titanium has been successfully joined to aluminium nitride AlN at a temperature as low as 795 °C, using Ag–Cu Cusil ® commercial braze alloy. While reactive wetting and spreading proceeds at the AlN/braze alloy interface, chemical interactions develop at the titanium side rendering possible isotherm...
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Published in | Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 495; no. 1; pp. 254 - 258 |
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Main Authors | , , , , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Amsterdam
Elsevier B.V
15.11.2008
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Titanium has been successfully joined to aluminium nitride AlN at a temperature as low as 795
°C, using Ag–Cu Cusil
® commercial braze alloy. While reactive wetting and spreading proceeds at the AlN/braze alloy interface, chemical interactions develop at the titanium side rendering possible isothermal solidification of the joint. The determining factor in the solidification process is the fast formation of TiCu
4 crystals by heterogeneous nucleation and growth in the liquid phase. As a consequence, the braze alloy is depleted in Cu and solid Ag precipitates. After annealing, the re-melting temperature of the resulting joint can be increased up to about 910
°C which is nearly 130
°C higher than the melting point of the starting braze alloy. |
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Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 |
ISSN: | 0921-5093 1873-4936 |
DOI: | 10.1016/j.msea.2007.10.104 |