Chemical research needed to improve high-temperature processing
of advanced ceramic materials (Technical report)
D. Kolar
"J. Stefan" Institute, Ceramics Department,
1001, Ljubljana, Slovenia
Abstract: Of the principal classes of engineering materials,
ceramics are in many ways the most interesting and challenging. Many
properties, or combination, of properties, not achievable with other
classes of materials give ceramics enormous technical potential. The
main obstacles that prevent the wider use of ceramics include insufficient
reliability, reproducibility, and high cost. The physical basis of the
processing steps is well established, however, the chemical reactions
which occur during the high-temperature processing frequently influence
the densification process and microstructure development of ceramics
in an unpredictable way. Therefore, an ability to understand and control
the chemical processes that occur during ceramic processing are necessary
to advance and open up new uses for technical ceramics. The aim of this
present report, resulting from discussions of an ad hoc group of ceramists
and chemists, is to expose the areas of chemical research that can most
benefit the processing, and further the use, of ceramic materials.
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