非水基凝胶方法制备高质量纯铜粉末凝胶坯体  

High quality greenbodyof pure copper fabricated by non-aqueous gelcasting

作　　者：卡瑞玛 唐怡[1] 贾成厂[1] 

机构地区：[1]北京科技大学新材料技术研究院,北京100083

出　　处：《粉末冶金技术》2016年第1期43-46,共4页Powder Metallurgy Technology

基　　金：国家自然科学基金项目(51274041)

摘　　要：本文采用非水基凝胶注模方法制备纯铜粉末坯体并对其抗弯性能进行了测定,探究了凝胶高分子三维网络结构及其对铜粉颗粒的包覆,最终得到所需复杂形状的坯体。坯体的抗弯强度取决于包覆铜颗粒的三维网络高分子聚合物强度,当交联剂和单体的比例为0.1时,坯体的抗弯强度有最优值,通过三点抗弯试验,测得坯体抗弯强度最大可达19.61MPa,已达到机械加工的强度。In this article,non-aqueous gelcasting was used for making greenbodies of pure copper,and its flexure strength was measured,the copper powder coated by gel polymer three-dimensional network structure was studied,at final the greenbody in complex shape was got. The flexure strength of greenbody depended on the strength of polymer coated the copper powder. The optimum value of flexure strength is 19. 61 MPa suitable for machining when the volume ratio of crosslinker and monomer is 0. 1.

关 键 词：凝胶注模 非水基 坯体 抗弯强度 

分 类 号：TQ327.9[化学工程—合成树脂塑料工业]