首页|Negative thermal expansion Y2Mo3O12 particles reinforced AgCuTi composite filler for brazing Cf/SiC and GH3536
Negative thermal expansion Y2Mo3O12 particles reinforced AgCuTi composite filler for brazing Cf/SiC and GH3536
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier Inc.A novel composite brazing alloy by introducing negative thermal expansion Y2Mo3O12 particles into AgCuTi alloy was developed to alleviate the residual stress of Cf/SiC-GH3536 joint. The negative thermal expansion behavior of Y2Mo3O12 material and its effects on the shear strength of brazed joints were investigated. The strong negative thermal expansion behavior of Y2Mo3O12 material greatly reduce the coefficients of thermal expansion of composite filler, which can greatly alleviate the residual stress of Cf/SiC-GH3536 joint. In addition, the interface structure has been greatly optimized, leading to enhanced bonding strength. The maximum shear strength of Cf/SiC-GH3536 joints reached ~42 MPa after added 3 wt% Y2Mo3O12, which was 1.6 times higher than that of original joints. This study shows that Y2Mo3O12 can maintain its strong negative expansion characteristics during the brazing process, which may provide a new idea to solve the hygroscopicity of Y2Mo3O12.
NSTL
Elsevier
