Two-Body Abrasive Wear of the Surfaces of Pangolin Scales  

作　　者：Jin Tong Tie-biao Lu Yun-hai Ma Heng-kun Wang Lu-quan Ren R. D. Arnell 

机构地区：[1]The Key Laboratory of Terrain-Machine Bionics Engineering （Ministry of Education, China）, Jilin University, Changchun 130025, P. R. China [2]Jost Institute of Tribotechnology, University of Central Lancashire, Preston PR1 2HE, UK

出　　处：《Journal of Bionic Engineering》2007年第2期77-84,共8页仿生工程学报（英文版）

基　　金：National Natural Science Foundation of China （Grant No.50675087, 50275037）; National Science Fund for Distinguished Young Scholars of China （Grant No. 50025516） ; ＂Project 985＂ of Jilin University.

摘　　要：The Pangolin, a soil-burrowing animal, is covered with scales. These scales are often abraded by soil and rock and their surface is corrugated. The abrasive wear of the surface of the scales was examined. The scales were taken from a pangolin that had died of natural causes. The tests were run on a rotary disc abrasive wear tester. The abrasive material was quartz sand （96.5 wt.%） and bentonite （3.5 wt.%）. The morphology of the abraded surfaces and the abrasion were examined by stereoscopic microscopy and scanning electron microscopy. The concepts are proposed of ＂Guiding-Effect＂ and ＂Rolling-Effect＂ on the textured surfaces under free abrasive wear conditions and the critical dimensions of the ＂Rolling-Effect＂ are discussed.The Pangolin, a soil-burrowing animal, is covered with scales. These scales are often abraded by soil and rock and their surface is corrugated. The abrasive wear of the surface of the scales was examined. The scales were taken from a pangolin that had died of natural causes. The tests were run on a rotary disc abrasive wear tester. The abrasive material was quartz sand （96.5 wt.%） and bentonite （3.5 wt.%）. The morphology of the abraded surfaces and the abrasion were examined by stereoscopic microscopy and scanning electron microscopy. The concepts are proposed of ＂Guiding-Effect＂ and ＂Rolling-Effect＂ on the textured surfaces under free abrasive wear conditions and the critical dimensions of the ＂Rolling-Effect＂ are discussed.

关 键 词：pangolin scale surface morphology abrasive wear 

分 类 号：Q811[生物学—生物工程]