Bonding and Interfacial Structures of SiC/Zr Joint(Materials, Metallurgy & Weldability)
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Phase reactions and compounds between SiC and Zr were investigated at bonding temperatures of 1473 and 1573K. Zr reacts with SiC, and forms ZrC next to the Zr and Zr_5Si_3C_x accompanying Zr_2Si beside the SiC. The diffusion of silicon and carbon continue from SiC, and ZrC between SiC and Zr_5Si_3C_x were formed during bonding. At bonding time of 1.8ks or more at 1573K the complete diffusion path was established between SiC and Zr as, SiC/ZrC/Zr_5Si_3C_x/Zr_2Si/ZrC_x/Zr. This diffusion path is correlated with the corresponding Si-Zr-C phase diagram.
- Trans, JWRI
Trans, JWRI 25, 59-62, 1996