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Published in:
01-04-2014 | Communication
On Asymmetric Diffusional Solidification During Transient Liquid Phase Bonding
Published in: Metallurgical and Materials Transactions A | Issue 4/2014
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Abstract
The underlying cause of asymmetric diffusion solidification which alters microstructure during transient liquid phase bonding under low temperature gradient was studied. A new solute-conserving asymmetric numerical model coupled with experimental verification showed that a transition from bi-directional to unidirectional solidification, under a constant temperature gradient, is controlled by competition between liquid and solid-state diffusion at one of the two liquid–solid interfaces. This mechanistic understanding would aid a more effective use of the process.