文献类型：期刊文献

英文题名：Mechanical and Tribological Properties of 3D Printed Polyamide 12 and SiC/PA12 Composite by Selective Laser Sintering

作者：Yu, Guoyan[1,2];Ma, Jingdong[1];Li, Jun[1];Wu, Jingquan[1];Yu, Jiang[1];Wang, Xianzhang[1]

机构：[1]Guangdong Ocean Univ, Sch Mech & Power Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Prov Marine Equipment & Mfg Engn Techno, Zhanjiang 524088, Peoples R China

年份：2022

卷号：14

期号：11

外文期刊名：POLYMERS

收录：SCI-EXPANDED(收录号：WOS:000809460500001)、、EI(收录号：20222412216141)、Scopus(收录号：2-s2.0-85131534952)、WOS

基金：This research was funded by 2021 Marine Economy Development Project of Guangdong Province, grant number 011Z21001, Zhanjiang Innovation and Entrepreneurship Team Education "Pilot Program" Project, grant number 2020LHJH003, Guangdong Regional Joint Fund, grant number 2019B1515120017, The Fund of Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), grant number ZJW-2019-01, Doctoral Research Start-up Project of Guangdong Ocean University, grant number 060302012005 and Zhanjiang Key Laboratory of Modern Marine Fishery Equipment, grant number 2021A05023.

语种：英文

外文关键词：polymeric composites; selective laser sintering; friction; wear mechanism

外文摘要：Polymeric matrix composites are important to the advancement of industries such as the automobile and medicine industries. In this study, the silicon carbide (SiC) particle-reinforced polyamide12 (PA12) matrix composites were fabricated by selective laser sintering system as well as the pure PA12. The surface topographies, mechanical, and tribological properties were further examined. The results indicated that the friction and wear resistance of the composite were improved compared with the PA12 matrix. The compressive strength increased about 8.5%, shore D hardness increased about 6%. The friction coefficient decreased about 10%, the specific wear rate decreased 20% after adding silicon carbide 10% weight to PA12. The wear mechanisms were also discussed. The deformed asperities on the worn surface can withstand more tangential load, and therefore resulted in lower specific wear rate. It was found that the content of SiC particles on the surface were reduced after friction tests. According to the analysis of SEM, EDS, and FTIR results, the wear mechanisms were considered to be the abrasive and fatigue mode. This type of PA12 matrix composite might be a promising potential in marine and energy applications.