ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The transition from a glass to a glass-ceramic is usually accompanied by marked changes in physical properties. For some materials, this process may be studied by measurement of properties as crystallisation proceeds and can be related to the changing mineralogical structure of the glass-ceramic. Starting with a modified lithium-zinc-silicate glass, the uses of viscosity, differential thermal analysis, and electrical resistivity as means of detecting the onset of crystallisation are discussed. Changes in elastic modulus, mechanical strength, and thermal expansion coefficient illustrate the effect on these properties of crystallisation of different crystal types. The structures and composition of the material with increasing crystallinity are shown by electron microscopy and X-ray diffraction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00550175
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