Influence of porogen type and copper powder morphology on property of sintering copper porous materials

作     者：LIU Ru-tie CHEN Jie XIONG Xiang 刘如铁;陈洁;熊翔

作者机构：State Key Laboratory of Powder Metallurgy Central South University 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2018年第25卷第9期

页      面：2143-2149页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project(2015DFR50580)supported by International S&T Cooperation Program of China Project(51505503)supported by the National Natural Science Foundation of China 

主　　题：copper porous materials sintered neck porosity permeability 

摘      要：Copper porous materials have been manufactured by the method of powder *** copper powders and atomized copper powders are used as matrix *** and paraffin are used as *** influence of porogen type and copper powder morphology on the property of copper porous materials is investigated as *** results show that copper porous materials with paraffin as porogen have lower porosity and permeability compared with materials using methylcellulose as porogen,due to the different pore-forming *** pore forming mechanism of methylcellulose is thermal decomposition,while the pore forming mechanism of paraffin is melting–*** morphology of copper powders affects the contact state between adjacent powders,which further influence the sintering *** porous materials using arborescent copper powders as matrix have lower porosity,smaller pore size and lower permeability,compared with materials with atomized copper powders as matrix.