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Zirconia
Zirconia (zirconium oxide) is an excellent thermal and electrical
insulator. Yttria stabilized zirconia undergoes phase transformation
toughening, as it can change from a tetragonal phase to a monoclinic
phase, which puts a propagating crack tip into compression.
Microwave sintering of zirconia has been demonstrated at Ceralink.
Alumina couples with microwave energy directly at elevated temperatures
(above 600 ºC).
3 mol% yttira- structural ceramics
8 mol% yttria- fuel cell applications, gem stones
Zirconia can also be stabilized with cerium, calcium and magnesium
oxides.
Major uses of alumina are in refractories, ceramics, dental, fuel
cells, abrasive applications and gem stones.
Material: Ceramic
Chemical Formula: ZrO2
Properties: High strength, high toughness, high temperature,
wear resistant
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