Fast Firing of Porcelain

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New York State College of Ceramics at Alfred University. Inamori School of Engineering.
Fast firing of commercial porcelains continues to be an important aspect of ceramic manufacturing. The ability to predict the firing conditions necessary to densify a given body could be quite valuable as a means to compensate for raw material chemistry variations, the introduction of new production kilns, or the variation of an existing firing cycle within a production environment. Previous work demonstrated that mineralogy, microstructure evolution, and densification can be accurately predicted over a broad range of temperatures and dwell times, but this work was only conducted on a single composition. To allow the generation of a more widely applicable model, it is necessary to demonstrate that this model is valid over a wide chemistry range. Ten compositions, fired over a broad range of temperature and time conditions, were used to develop a model that is valid for the experimental bodies in this thesis and is valid for the composition from previous work. In addition, a more general relationship is proposed that relates densification to the amount of glass formed during heat treatment.
Completed in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Ceramic Engineering at the Inamori School of Engineering, New York State College of Ceramics at Alfred University Advisory Committee members: William Carty, Matthew Hall, Doreen Edwards