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Shrinkage Control By Paint Solvent Content Adjustment

IP.com Disclosure Number: IPCOM000066464D
Original Publication Date: 1979-Mar-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Swiss, WR [+details]

Abstract

An increase in solvent content increases the void volume in the green, i.e., unfired, ceramic sheet. This has the result of decreasing the green sheet density and increasing the shrinkage during sintering or firing. The converse of this effect is also true. The viscosity of the ceramic paint is also affected. However, the increased viscosity experienced with reduced solvents can be eliminated by the use of a lower viscosity index in the ceramic paint system. The converse in this area is also true. Plotted below is an example of the effect that solvent content has on green sheet density and shrinkage.