Rheological Separation Free Volume Mechanism
Original Publication Date: 1978-Mar-01
Included in the Prior Art Database: 2005-Feb-20
Ceramic green sheets, while drying, normally utilize a solvent nonsolvent sheet formation mechanism to develop a microporous structure. The microporous sheet structure results from rheological changes associated with rapidly increasing viscosities that ultimately set the green sheet structure while a large degree of solvent remains in the polymer-binder network. At this point the solvent gradually diffuses from and through the polymer network with eventual microvoids resulting. The result is a microporosity most commonly referred to as low density green sheet.