Micro-thermal analysis: techniques and applications

doi:10.1088/0022-3727/34/9/201

2001-04-18

266

PRE

Pollock, HM

Hammiche, A

DOI：10.1088/0022-3727/34/9/201

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摘要

En 中文

The terms micro-thermal analysis and micro-structure ol)ic analysis are used to include any form of localized characterization or analysis combined with microscopy that uses a near-field thermal probe to exploit the benefits of using thermal excitation. Individual regions of a solid sample are selected by means of surface or sub-surface imaging (atomic force microscopy and/or scanning thermal microscopy), so as to add spatial discrimination to four well-established methods of chemical fingerprinting, namely thermomechanometry, calorimetry, spectroscopy and analytical pyrolysis. We begin by describing the state of the art of scanning microscopy that uses resistive thermal probes, followed by an account of the various techniques of micro-thermal analysis. Modern materials technology is increasingly concerned with the control of materials at the mesoscale. The ability to add an extra dimension of, say, chemical composition information to high-resolution microscopy, or microscopic information to spectroscopy, plays an increasingly useful part in applied research. Micro-thermal analysis is now being used commercially to visualize the spatial distribution of phases, components and contaminants in polymers, pharmaceuticals, foods, biological materials and electronic materials. This: review outlines various applications that have been described in the literature to date, the topics ranging from multi-layer packaging materials and interphase regions in composites, to the use of the technique as a means of surface treatment.

Keyword:

DIFFERENTIAL SCANNING CALORIMETRY

EXPANSION MICROSCOPY

PROBE MICROSCOPY

HEAT-TRANSFER

THIN-FILMS

CONDUCTIVITY

NANOFABRICATION

METHACRYLATE)

TEMPERATURE

INTERFACE