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Lab talk, the good, the bad, and the ugly
Zirconium
What is the best way to press a Zirconia puck? CIP, HIP, Colloidal or HSD method?
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<blockquote data-quote="Patrick Coon" data-source="post: 326414" data-attributes="member: 11366"><p>Most zirconia disks on the market are produced one of two ways:</p><p></p><p> 1. Uniaxial - the powder(s) are placed in a mold and then pressure is applied by a piston to compact the material.</p><p></p><p> 2. Uniaxial and then CIP (cold isostatic pressing) - after the unixial pressing the disk is placed in a watertight pouch, vacuum sealed, and then placed in a large vat of liquid. The vat is then pressurized applying even pressure to all sides of the disk ensuring uniform density throughout the disk. This gives the added benefit of more even controlled shrinkage during the sintering process, especially important when sintering large span restorations.</p></blockquote><p></p>
[QUOTE="Patrick Coon, post: 326414, member: 11366"] Most zirconia disks on the market are produced one of two ways: 1. Uniaxial - the powder(s) are placed in a mold and then pressure is applied by a piston to compact the material. 2. Uniaxial and then CIP (cold isostatic pressing) - after the unixial pressing the disk is placed in a watertight pouch, vacuum sealed, and then placed in a large vat of liquid. The vat is then pressurized applying even pressure to all sides of the disk ensuring uniform density throughout the disk. This gives the added benefit of more even controlled shrinkage during the sintering process, especially important when sintering large span restorations. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Zirconium
What is the best way to press a Zirconia puck? CIP, HIP, Colloidal or HSD method?
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