Carbothermal reduction reaction enhanced wettability and brazing strength of AgCuTi-SiO2f/SiO2 system
作者： Zhan Sun , Yu Cao , Lixia Zhang , Jicai Feng
DOI: 10.1016/J.JEURCERAMSOC.2019.11.067
关键词: Wetting 、 Contact angle 、 Pyrolytic carbon 、 Inert 、 Shear strength 、 Composite material 、 Carbon 、 Brazing 、 Carbothermic reaction 、 Materials science
摘要: Abstract A carbothermal reduction reaction (CRR) approach was developed in this research to tailor the surface phase structure of SiO2f/SiO2 composites with high chemical reactivity replace original inert surface. Results show that SiC can form after CRR treatments. For AgCuTi-SiO2f/SiO2 wetting interfaces, TiC and residual pyrolytic carbon layer be found inside layer, which key, promoting wettability system. The contact angle system dropped from 127° 43° reliability bonded interface also characterized by putting 3 different systems into comparison, i.e., system, treatments (SiC formation) coated powdered (no formation). shear strength SiO2f/SiO2-AgCuTi-SiO2f/SiO2 highest, times other 2 brazing systems.
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