Intercomparison of measurements of the thermophysical properties of polymethyl methacrylate

被引：36

作者：

Rudtsch, S

Hammerschmidt, U

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

[2] Phys Tech Bundesanstalt, D-10587 Berlin, Germany

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2004年 / 25卷 / 05期

关键词：

polymethyl methacrylate (PMMA); specific heat capacity; thermal conductivity; thermal diffusivity;

D O I：

10.1007/s10765-004-5752-y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Results of an intercomparison of measurements of thermal conductivity, thermal diffusivity, specific heat capacity, and density of polymethyl methacrylate (PMMA) in the temperature range between -70degreesC and +80degreesC are presented. The purpose of this comparison is to investigate the variability of the results among guarded hot-plate (GHP) and guarded heat-flow meter (GHF) techniques on the one hand and among GHP/GHF and other measuring instruments on the other. The primary objectives are to characterize the material properties mentioned and to quantify the effects of thermal contact resistances and temperature measurements. With regard to future use of PMMA as a reference material, reference data for the thermal conductivity are derived.

引用

页码：1475 / 1482

页数：8

共 5 条

[1] Transient hot strip (THS) method: Uncertainty assessment [J].