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US 12,179,383 B2Granted
Process and slip for the production of ceramic shaped bodies made of zirconium oxide by 3D inkjet printing
AssigneeIvoclar Vivadent AG
InventorsChristian Ritzberger, Johannes Renner
Life of this patent
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Abstract
Process and slip for the production of ceramic shaped parts made of zirconium oxide ceramic by a 3D inkjet printing process. The slip contains zirconium oxide which is suspended in a liquid medium, wherein the slip has a zirconium oxide content of from 68 to 88 wt.-% and contains not more than 5 wt.-% organic components. The process for the production of ceramic components comprises the layered shaping and subsequent sintering of the desired component from the slip.
Claims14
A slip for use in an inkjet printing process comprising
- zirconium oxide with a particle size of from 50 to 250 nm, measured as the d50 value and relative to the volume of the particles, which comprises one or more coloring elements and is suspended in a liquid medium,
- wherein the slip has a zirconium oxide content of from 68 to 88 wt.-%, and not more than 3 wt.-% organic components, relative to the total mass of the slip, and
- wherein the slip has a viscosity of from 5 to 100 mPas, measured at a shear rate of from 0.1 to 1000 s−1 and a temperature of 25° C.
Dependencies are inferred from the claim text.