Localized thermal analysis using a miniaturized resistive probe
作者:
A. Hammiche,
M. Reading,
H. M. Pollock,
M. Song,
D. J. Hourston,
期刊:
Review of Scientific Instruments
(AIP Available online 1996)
卷期:
Volume 67,
issue 12
页码: 4268-4274
ISSN:0034-6748
年代: 1996
DOI:10.1063/1.1147525
出版商: AIP
数据来源: AIP
摘要:
We describe a novel thermal characterization technique based on a differential arrangement, which achieves spatially localized calorimetric analysis. It involves the use of an active probe which acts both as a highly localized heat source and a thermometer. This ability opens the way for the implementation of scanning calorimetric microscopy where image contrast will be created from thermal analysis data. For a number of polymers we have recorded events such as glass transitions, meltings, recrystallizations and thermal decomposition within volumes of material estimated at a few &mgr;m3. The data obtained are compared with those obtained from conventional calorimetry and the events registered in both cases are found to match. For a full quantitative analysis of the results obtained, mathematical modelling of the operation of the technique, taking account of physical and other changes in materials, is required. ©1996 American Institute of Physics.
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