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Enhancing interface bonding strength of Ti-ZrO2 joints using graphene as brazing materials
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127360 Yong Xian , Xiaoshan Zhang , Yichao Ding , Jing Wang , Hongyuan Huang
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127360 Yong Xian , Xiaoshan Zhang , Yichao Ding , Jing Wang , Hongyuan Huang
Abstract Ti-ZrO2 joints with a graphene sponge interlayer were prepared and the interface bonding was characterized by three-point flexural strength. Compared with direct Ti-ZrO2 jointing showing a formation of monoclinic TiO2 and ZrTiO4 at interface and a negligible bonding, interfacial strength of Ti/graphene sponge/ZrO2 joints has been significantly increased up to 48.5 ± 7.0 MPa without any new interfacial phase formation. The enhanced interface bonding can be ascribed to the preferred interstitial diffusion of carbon atoms originated from the decomposition of graphene sponge interlayer at high temperature. The carbon diffusion reduces the available interstitials and vacancies for Ti, O and Zr diffusions, which retards the interdiffusion between titanium and zirconia, achieving a preferred diffusion bonding to enhance the strength of Ti-ZrO2 joints.
中文翻译:
使用石墨烯作为钎焊材料增强 Ti-ZrO2 接头的界面结合强度
摘要 制备了具有石墨烯海绵夹层的 Ti-ZrO2 接头,并通过三点弯曲强度表征了界面结合。与直接 Ti-ZrO2 接合显示在界面处形成单斜晶 TiO2 和 ZrTiO4 且键合可忽略不计相比,Ti/石墨烯海绵/ZrO2 接头的界面强度显着增加至 48.5±7.0 MPa,而没有任何新的界面相形成。增强的界面键合可归因于碳原子优选的间隙扩散源自石墨烯海绵中间层在高温下的分解。碳扩散减少了 Ti、O 和 Zr 扩散的可用间隙和空位,从而阻碍了钛和氧化锆之间的相互扩散,
更新日期:2020-04-01
中文翻译:
使用石墨烯作为钎焊材料增强 Ti-ZrO2 接头的界面结合强度
摘要 制备了具有石墨烯海绵夹层的 Ti-ZrO2 接头,并通过三点弯曲强度表征了界面结合。与直接 Ti-ZrO2 接合显示在界面处形成单斜晶 TiO2 和 ZrTiO4 且键合可忽略不计相比,Ti/石墨烯海绵/ZrO2 接头的界面强度显着增加至 48.5±7.0 MPa,而没有任何新的界面相形成。增强的界面键合可归因于碳原子优选的间隙扩散源自石墨烯海绵中间层在高温下的分解。碳扩散减少了 Ti、O 和 Zr 扩散的可用间隙和空位,从而阻碍了钛和氧化锆之间的相互扩散,