English word(关于泡沫材料的英文文献).pdf

Materials and Design 61 (2014) 109–116Contents lists available at ScienceDirect Materials and Design journal homepage: www.elsevier .com/locate /matdesTechnical ReportFoamed-metal-reinforced composites: Tribological behavior of foamed copper filled with epoxy–matrix polymer/10.1016/j.matdes.2014.04.072 0261-3069/ 2014 Elsevier Ltd. All rights reserved. ? Corresponding author. Tel.: +86 025 E-mail address: zddai@ (Z. Dai).Keju Ji, Yinsong Xu, Jun Zhang, Jia Chen, Zhendong Dai ? Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China a r t i c l e i n f oArticle history: Received 8 November 2013 Accepted 26 April 2014 Available online 4 May 2014a b s t r a c t To improve the thermal performance and wear resistance of epoxy–matrix polymers, foamed copper materials filled with a curable epoxy matrix have been developed for tribological studies. Graphite flakes were incorporated as friction additive in the epoxy matrix. The tribological properties of foamed-copper- reinforced composites were investigated using a UMT-2 friction and wear tester. The temperature of the frictional area was measured using an infra-red thermal camera, and the effect of metallic skeletons on temperature was calculated by the finite element analysis (FEA). The results show the foamed-copper- reinforced composites are effective in transmitting heat and sharing load along the interconnected metal- lic skeletons, and therefore possess better thermal conductivity and wear resistance.  2014 Elsevier Ltd. All rights reserved.1. Introduction In the field of tribology, polytetrafluoroethylene, polyoxymeth- ylene, polyamide, epoxy resin (EP), and other polymer materials with different tribological characteristics are widely used as solid lubricating materials [1–3]. EP shows good mechanical properties, chemical/corrosion resistance, excellent dimensional stability, and low shrinkage during forming;