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    吴利翔, 龙军, 薛佳祥, 任啟森, 廖业宏, 翟剑晗, 刘洋, 詹创添, 郭伟明, 林华泰. 连接温度对CaO-Al2O3-MgO-SiO2-TiO2玻璃钎料连接SiC陶瓷接头微观结构和性能的影响[J]. 机械工程材料, 2023, 47(9): 52-56. DOI: 10.11973/jxgccl202309009
    引用本文: 吴利翔, 龙军, 薛佳祥, 任啟森, 廖业宏, 翟剑晗, 刘洋, 詹创添, 郭伟明, 林华泰. 连接温度对CaO-Al2O3-MgO-SiO2-TiO2玻璃钎料连接SiC陶瓷接头微观结构和性能的影响[J]. 机械工程材料, 2023, 47(9): 52-56. DOI: 10.11973/jxgccl202309009
    shu
    WU Lixiang, LONG Jun, XUE Jiaxiang, REN Qisen, LIAO Yehong, ZHAI Jianhan, LIU Yang, ZHAN Chuangtian, GUO Weiming, LIN Huatay. Effect of Joining Temperature on Microstructure and Properties of SiC Ceramic Joints with CaO-Al2O3-MgO-SiO2-TiO2 Glass Solder[J]. Materials and Mechanical Engineering, 2023, 47(9): 52-56. DOI: 10.11973/jxgccl202309009
    Citation: WU Lixiang, LONG Jun, XUE Jiaxiang, REN Qisen, LIAO Yehong, ZHAI Jianhan, LIU Yang, ZHAN Chuangtian, GUO Weiming, LIN Huatay. Effect of Joining Temperature on Microstructure and Properties of SiC Ceramic Joints with CaO-Al2O3-MgO-SiO2-TiO2 Glass Solder[J]. Materials and Mechanical Engineering, 2023, 47(9): 52-56. DOI: 10.11973/jxgccl202309009
    shu

    连接温度对CaO-Al2O3-MgO-SiO2-TiO2玻璃钎料连接SiC陶瓷接头微观结构和性能的影响

    Effect of Joining Temperature on Microstructure and Properties of SiC Ceramic Joints with CaO-Al2O3-MgO-SiO2-TiO2 Glass Solder

      摘要
    • 摘要: 采用新型玻璃钎料CaO-Al2O3-MgO-SiO2-TiO2（CAMST）连接无压烧结SiC陶瓷，研究了连接温度（1 300~1 450℃）对SiC陶瓷接头微观结构和力学性能的影响。结果表明：CAMST玻璃钎料在1 350~1 450℃下可实现SiC陶瓷的有效连接。当连接温度为1 350℃时，焊缝厚度约为36 μm，母材与焊缝界面存在较多孔洞，接头剪切强度为（21.4±2.7） MPa；当连接温度为1 400℃时，焊缝厚度为3 μm，母材与焊缝结合良好，接头剪切强度为（47.6±6.2） MPa；当连接温度升高至1 450℃时，焊缝厚度约为50 μm，母材与焊缝结合良好，但焊缝中存在裂纹缺陷，接头剪切强度为（20.9±3.9） MPa。连接温度对焊缝硬度无明显影响。

       

      Abstract: Pressureless sintered SiC ceramics were joined with a noval glass solder of CaO-Al2O3-MgO-SiO2-TiO2 (CAMST). The effect of joining temperature (1 300-1 450℃) on the microstructure and mechanical properties of SiC ceramic joints was investigated. The results show that CAMST glass solder could effectively connect SiC ceramics at 1 350-1 450℃. The thickness of the weld was about 36 μm when the joining temperature was 1 350℃, and large pores were observed in the interlayer between base metal and weld; the shear strength of the joint was (21.4±2.7) MPa. When the joining temperature was 1 400℃, the thickness of the weld was about 3 μm, and the base metal was well bonded with weld; the shear strength of the joint was (47.6±6.2) MPa. When the joining temperature was 1 450℃, the thickness of the weld was about 50 μm; the base metal was well bonded with weld, but there were crack defects in the weld; the shear strength of the joint was (20.9±3.9) MPa. The joining temperature had no significant effect on the hardness of the weld.

       

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