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Lab talk, the good, the bad, and the ugly
Zirconium
Question on Glazing Zirconium.
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<blockquote data-quote="Davor RDT" data-source="post: 343113" data-attributes="member: 20439"><p>All Zirconia firing schedules need a slower heat rise rate and slower cooling/opening , Temperature aside, since it is a poor heat conductor compared to dental alloys and even Alumina . Bigger the unit ( bridges etc. ) slower the rate . Aside from stressing the material by frying it too fast and having cracks develop , surface treatment materials ( stain/glaze or dry or liquid ceramic ) need to attach them selves to zirconia properly as well . </p><p>I hope this is helpful</p></blockquote><p></p>
[QUOTE="Davor RDT, post: 343113, member: 20439"] All Zirconia firing schedules need a slower heat rise rate and slower cooling/opening , Temperature aside, since it is a poor heat conductor compared to dental alloys and even Alumina . Bigger the unit ( bridges etc. ) slower the rate . Aside from stressing the material by frying it too fast and having cracks develop , surface treatment materials ( stain/glaze or dry or liquid ceramic ) need to attach them selves to zirconia properly as well . I hope this is helpful [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Zirconium
Question on Glazing Zirconium.
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