Microstructure and Mechanical Property of the ZrB2-Based Ultra-High-Temperature Ceramic Composites Brazed Joint

Zhuo Ran Li; Guang Dong Wu; Zheng Zheng Wang; Ji Cai Feng

doi:10.4028/www.scientific.net/AMR.314-316.1184

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 314-316Microstructure and Mechanical Property of the...

Microstructure and Mechanical Property of the ZrB₂-Based Ultra-High-Temperature Ceramic Composites Brazed Joint

Abstract:

ZrB₂-SiC ceramic composites was brazed by using Ti-Zr-Ni-Cu active filler in a vacuum furnace. The microstructure and interfacial phenomena of the joints were analyzed by means of SEM, EDS and XRD. The joining effect was evaluated by shear strength. The results showed that the reaction products of the ZrB2-SiC ceramic composites joint brazed with Ti-Zr-Ni-Cu active filler were TiC, ZrC, Ti5Si3, Zr₂Si, Zr(s,s) and (Ti, Zr)2 (Ni, Cu). The maximum shear strength of the ZrB₂-based ultra-high-temperature ceramic composites brazed joints is 143.5 _{Subscript text}MPa at brazing temperature T=920°C and holding time t=10min.

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Advanced Manufacturing Technology, ADME 2011

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Advanced Materials Research (Volumes 314-316)

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1184-1188

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.314-316.1184

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Online since:

August 2011

Authors:

Zhuo Ran Li, Guang Dong Wu, Zheng Zheng Wang, Ji Cai Feng

Keywords:

Braze, Microstructure, Ti-Zr-Ni-Cu Active Filler, ZrB₂-SiC Ceramic Composites

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