以NaCl为造孔剂制备开孔多孔铜的孔隙形貌及压缩性能  

Pore Morphology and Compressive Properties of Open-Celled Porous Cu Fabricated by Using NaCl as Pore Former

作　　者：王清周[1] 李诺[1] 王倩[1] 吴爱忠[1] 崔春翔[1] 

机构地区：[1]河北工业大学材料科学与工程学院,天津300130

出　　处：《机械工程材料》2011年第4期53-56,共4页Materials For Mechanical Engineering

基　　金：河北省自然科学基金资助项目(E200900060);天津市应用基础及前沿技术研究计划重点项目(09ZCJDJC22200)

摘　　要：以NaCl颗粒为造孔剂,采用烧结-脱溶法制备了开孔多孔铜,对其孔隙及压缩性能进行了研究。结果表明:所得多孔铜的孔隙多为三维贯通开孔网络结构,孔的形貌与大小均与NaCl颗粒相似;其弯曲断口呈现典型的韧性断裂特征;其压缩应力-应变曲线分为明显的弹性区、平台区及致密化区3个区域,压缩变形遵循逐层坍塌的机制,具有较好的压缩吸能特性。Open-celled porous Cu had been fabricated by using NaCl particles as pore former through sintering-dissolution process. The pores and compressive properties were studied. It is shown that the pores of porous Cu had 3d transfixion open-celled network structure. The shape and size of the pores were similar to those of NaCl particulates. The flexural fracture surface exhibited typical ductile rupture characteristics. The compressive stress-strain curves could be distinctly divided into three stages including elasticity, plateau and densification. The layer-by-layer collapse was the predominant deformation mechanism during compression. And the material had better compressive energy abstrption property.

关 键 词：开孔多孔铜 烧结-脱溶 NACL 压缩性能 

分 类 号：TB31[一般工业技术—材料科学与工程] TB303