Abstract
The application of a recently developed micro differential thermal analyser (ΜDTA) to studies on the crystallisation of glasses is described.
The technique permits continuous visual observation of microdroplets of melts and glasses during thermal analysis over a wide range of heating and cooling rates.
Nucleation and crystallisation processes can be studied in conjunction with techniques of X-ray diffraction and electron microscopy. Crystal growth rates can be measured. Semiquantitative values for the heats of crystallisation of glasses can be obtained and kinetic data relating to the rate at which glasses undergo volume crystallisation can be derived from an analysis of the thermograms.
The scope of the technique in linking structural information with the thermal and kinetic data associated with transformations in glasses is illustrated with data from three lithium aluminosilicate glasses.
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Clinton, D., Mercer, R.A. & Miller, R.P. The application of differential thermal analysis by high temperature microscopy to kinetic and structural studies on the crystallisation of glasses. J Mater Sci 5, 171–181 (1970). https://doi.org/10.1007/BF00554636
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DOI: https://doi.org/10.1007/BF00554636