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Sintering and Crystallization of Glass at Constant Heating Rates
Author(s) -
Panda Prakash C.,
Raj Rishi
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb07709.x
Subject(s) - materials science , crystallization , sintering , composite material , shear (geology) , mineralogy , thermodynamics , geology , physics
The densification and shear behavior of glass powder compacts were determined by measuring their axial strain and radial strain during uniaxial compression. The experiments were conducted nonisothermally at constant rates of heating. The densification and the shear strain were plotted as a function of temperature. Both showed sigmoidal behavior, reaching a plateau at high temperature. The density saturated because the powder compact had sintered to completion, but the shear strain saturated because of the onset of crystallization. The technique offers a method for studying the interaction between densification and crystallization of glass powders.