INJECTION MOLDING OF STRUCTURAL ZIRCONIA-BASED MATERIALS BY AN AQUEOUS PROCESS

摘要

A MOLDING COMPOUND IS USED TO FORM NET-SHAPE OR NEAR NET-SHAPE ARTICLES CONSISTING ESSENTIALLY OF ABOUT 50 TO 100 WTZRO2 (Y2O3) AND 0 ABOUT 50 WT AL2O3. THE COMPOUND, CONTAINING CERAMIC POWDERS HAVING AN AVERAGE PARTICLE SIZE LESS THAN 1 µm IS MIXED WITH A LIQUID CARRIER, A GEL FORMING BINDER AND PROCESSING ADDITIVES AND CAN BE MOLDED AT RELATIVELY LOW PRESSURE IN A CONVENTIONAL INJECTION MOLDING MACHINE.