文献类型：会议论文

英文题名：Microstructure of Eucalyptus Pellita under Different Thermal Treatment Temperatures and its Effect on Physical-Mechanical Characteristic

作者：Wang Xuehua[1] Liu Junliang[1] Xu Guoqi[1] Chai Yubo[1]

通信作者：Wang, XH[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

会议论文集：International Conference on Key Engineering Materials

会议日期：MAR 25-27, 2011

会议地点：Sanya, PEOPLES R CHINA

语种：英文

外文关键词：Eucalyptus pellita; vacuum; thermal treatment; physical-mechanical characteristic; microstructure; effect

年份：2011

摘要：Taken the eucalyptus pellita treated for example, this article introduced the microstructure of wood without heat-treatment and microstructure-change under different temperatures (80 degrees C, 120 degrees C, 160 degrees C, 200 degrees C, 240 degrees C, 280 degrees C), analyzed the affect of the thermal treatment on wood's physical-mechanical characteristic from microstructure. The result shows that: 1) pit membrane on the vessel tended to be broken or deciduous; 2) as the temperature ascending, fiber appears wizened and some grows rose, cell cavity trails off, severing of fiber could be saw on the transverse section. and brittle fracture on the radial cut; 3) weight reduced as temperature went up, while bending strength and modulus of elasticity descending after ascending, vertex appears when the temperature was 120 degrees C. resistance was seriously lost at 280 degrees C.