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Diffusion bonding method of ternary layered ceramic titanium silicon carbide based on Al foil intermediate layer, solid solution of ternary layered ceramic titanium silicon carbide and ferritic stainless steel
The invention relates to a diffusion bonding method of ternary layered ceramic titanium-silicon-carbon based on an Al foil intermediate layer, a solid solution of the ternary layered ceramic titanium-silicon-carbon and ferritic stainless steel, which comprises the following steps of: polishing the surfaces to be bonded of the ternary layered ceramic and the ferritic stainless steel step by step by using metallographic abrasive paper, and polishing by using diamond grinding paste; removing an oxidation film on the surface of the Al foil; the ternary layered ceramic, the Al foil and the ferritic stainless steel are arranged in sequence, a temperature measuring platinum wire is welded to the side face of the sample, and diffusion bonding is conducted on the welded sample; and after the connection experiment is completed, cooling and removing pressure to obtain the diffusion connection joint. The joint obtained by adopting the method provided by the invention is good in interface bonding, low in connection temperature and good in mechanical property and use performance, a continuous reaction layer is generated on the interface, welding defects such as cracks and air holes are avoided, the problem of Cr volatilization of an alloy connector can be solved, the preparation and processing cost of a ceramic connector is reduced, and the production cost is reduced. And the application range of the ternary layered ceramic Ti3SiC2 and the solid solution material thereof is expanded.
本发明涉及基于Al箔中间层的三元层状陶瓷钛硅碳及其固溶体与铁素体不锈钢的扩散连接方法，步骤为：将三元层状陶瓷与铁素体不锈钢的待连接表面用金相砂纸逐级磨光，再用金刚石研磨膏抛光；Al箔清除掉表面氧化膜；按照三元层状陶瓷/Al箔/铁素体不锈钢的顺序排列，并在样品侧面焊接测温铂丝，将焊接后的样品进行扩散连接；连接实验完成后，降温撤压，得到扩散连接接头。采用本发明所提供方法获得的接头界面结合好，连接温度低，具有良好的力学性能和使用性能，界面生成连续的反应层，没有裂纹、气孔等焊接缺陷，能解决合金连接体Cr挥发问题，减少陶瓷连接体制备和加工费用，扩大了三元层状陶瓷Ti3SiC2及其固溶体材料的应用范围。
Diffusion bonding method of ternary layered ceramic titanium silicon carbide based on Al foil intermediate layer, solid solution of ternary layered ceramic titanium silicon carbide and ferritic stainless steel
The invention relates to a diffusion bonding method of ternary layered ceramic titanium-silicon-carbon based on an Al foil intermediate layer, a solid solution of the ternary layered ceramic titanium-silicon-carbon and ferritic stainless steel, which comprises the following steps of: polishing the surfaces to be bonded of the ternary layered ceramic and the ferritic stainless steel step by step by using metallographic abrasive paper, and polishing by using diamond grinding paste; removing an oxidation film on the surface of the Al foil; the ternary layered ceramic, the Al foil and the ferritic stainless steel are arranged in sequence, a temperature measuring platinum wire is welded to the side face of the sample, and diffusion bonding is conducted on the welded sample; and after the connection experiment is completed, cooling and removing pressure to obtain the diffusion connection joint. The joint obtained by adopting the method provided by the invention is good in interface bonding, low in connection temperature and good in mechanical property and use performance, a continuous reaction layer is generated on the interface, welding defects such as cracks and air holes are avoided, the problem of Cr volatilization of an alloy connector can be solved, the preparation and processing cost of a ceramic connector is reduced, and the production cost is reduced. And the application range of the ternary layered ceramic Ti3SiC2 and the solid solution material thereof is expanded.
本发明涉及基于Al箔中间层的三元层状陶瓷钛硅碳及其固溶体与铁素体不锈钢的扩散连接方法，步骤为：将三元层状陶瓷与铁素体不锈钢的待连接表面用金相砂纸逐级磨光，再用金刚石研磨膏抛光；Al箔清除掉表面氧化膜；按照三元层状陶瓷/Al箔/铁素体不锈钢的顺序排列，并在样品侧面焊接测温铂丝，将焊接后的样品进行扩散连接；连接实验完成后，降温撤压，得到扩散连接接头。采用本发明所提供方法获得的接头界面结合好，连接温度低，具有良好的力学性能和使用性能，界面生成连续的反应层，没有裂纹、气孔等焊接缺陷，能解决合金连接体Cr挥发问题，减少陶瓷连接体制备和加工费用，扩大了三元层状陶瓷Ti3SiC2及其固溶体材料的应用范围。
Diffusion bonding method of ternary layered ceramic titanium silicon carbide based on Al foil intermediate layer, solid solution of ternary layered ceramic titanium silicon carbide and ferritic stainless steel
一种基于Al箔中间层的三元层状陶瓷钛硅碳及其固溶体与铁素体不锈钢的扩散连接方法
ZHENG LILI (Autor:in) / LI XICHAO (Autor:in) / XU BIN (Autor:in) / SUN MINGYUE (Autor:in) / SHI JING (Autor:in) / CHENG QIANG (Autor:in) / ZHANG HONGXIN (Autor:in) / DAI ZUOQIANG (Autor:in) / ZHANG TIEZHU (Autor:in)
15.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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