摘要
采用热压烧结法制备Ag-30vol%Ti_(3)SiC_(2)复合材料,Ti_(3)SiC_(2)颗粒均匀分布于Ag基体上,无团聚和扩散现象。分别在3、6、8和10 kV的放电电压下,对Ag-30vol%Ti_(3)SiC_(2)复合材料进行了电弧烧蚀试验。结果表明,随着放电电压的增加,电弧能量增加,电弧扩散更加明显,烧蚀面积逐渐增大,烧蚀坑越来越深。Ag-30vol%Ti_(3)SiC_(2)材料表面形成喷溅、凸起、气孔和“龟裂”的显微形貌。经过电弧烧蚀后,Ag-30vol%Ti_(3)SiC_(2)复合材料发生分解,并氧化生成AgO、Ag_(2)O、SiO_(2)和TiO_(2)。
Ag-30vol%Ti_(3)SiC_(2)composite was fabricated by hot-press sintering,and Ti_(3)SiC_(2)particles were uniformly distributed on Ag matrix without agglomeration and diffusion.The arc erosion was applied on the Ag-30vol%Ti_(3)SiC_(2)composites with the discharge voltage at 3,6,8,10 kV consequently.The results show that with the increase of discharge voltage,the arc energy increases,the arc diffusion becomes more obvious,the ablation area increases gradually,and the ablation pit becomes deeper and deeper.The morphologies of spattered,raised,blowhole and"crack"are formed on the surface of the Ag-30vol%Ti_(3)SiC_(2)material,and after arc erosion,Ag-30vol%Ti_(3)SiC_(2)composites are decomposed and oxidized into AgO,Ag_(2)O,SiO_(2)and TiO_(2).
作者
黄晓晨
颜宇
丁云飞
葛金龙
吕长鹏
赵浩
HUANGXiaochen;YANYu;DINGYunfei;GEJinlong;LYUChangpeng;ZHAOHao(School of Material and Chemical Engineering,Bengbu University,Bengbu 233030,China;Engineering Technology Research Center of Silicon-based Materials,Bengbu 233030,China;School of Mechanical and Ocean Engineering,Jiangsu Ocean University,Lianyungang 222005,China;School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《热加工工艺》
北大核心
2024年第14期73-78,共6页
Hot Working Technology
基金
国家自然科学基金项目(51971100)
安徽省自然科学基金青年项目(1908085QE218)
安徽省高校科学研究项目(KJ2019A0852,KJ2019ZD62)
江苏省青蓝工程和521高层次人才培养工程项目(LYG52105-2018042)
2019年江苏省研究生创新工程项目(SY201906X)。
