宇航材料工艺2017，Vol.47Issue(6)：69-72,4.DOI:10.12044/j.issn.1007-2330.2017.06.006
微孔纳米板与陶瓷纤维板热导率对比研究
Comparison of Thermal Conductivity Between Microporous Nano Plate and Fiber Board
摘要
Abstract
The thermal conductivity of microporous nano plate and fiber board was measured by non steady hotwire method at RT to 1000℃ temperature range,and the results were analyzed and explained by SEM micro morphology analysis and fluorescence spectrum composition analysis,combined with micro thermal conductivity mechanism.The results show that the thermal conductivity of the nano plate is in the range of 0.03 to 0.1W/(m· K),and the fiber board is 0.055 to 0.25W/(m· K),the thermal conductivity of the two materials both have an upward trend with in creasing temperature,the difference is that the thermal conductivity of fiber board began to increase sharply after 300℃,while the nano plate started after 550℃.However,the overall trend of the nano plate was obviously slower than that of the fiber board,and the higher the temperature,the greater the difference.Analysis suggests that the nano-sized particles and internal pores are the key factors that lead to low thermal conductivity of nano plates.关键词
热线法/纳米多孔绝热材料/热导率Key words
Hot-wire method/Nanoporous insulation materials/Thermal conductivity分类
数理科学引用本文复制引用
雒彩云,杨莉萍,陶冶,徐子君,钟秋..微孔纳米板与陶瓷纤维板热导率对比研究[J].宇航材料工艺,2017,47(6):69-72,4.基金项目
国家重点研发计划重大仪器设备开发专项“宽幅变温磁环境差式扫描量热仪工程化及应用开发”(2016YFF0101701) （2016YFF0101701）
载人航天工程资助项目(TGJZ800-2-RW024) （TGJZ800-2-RW024）
