Patent ID: 6119485
Filing Date: 2000-09-19
Classification: C03B,C03C,C23C,Y10T

Abstract:
A press-molding die comprising: a base material, an intermediate layer formed on a surface of the base material and a protective layer formed on the intermediate layer, whereinthe base material comprises an inorganic oxide;the intermediate layer comprises a material that adheres to both the base material and the protective layer and is heat resistant at high temperatures wherein the die is used; andthe protective layer comprises at least one metal film selected from the group consisting of tungsten (W), platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru), iridium (Ir), osmium (Os), rhenium (Re), tantalum (Ta) and alloys thereof,wherein said intermediate layer comprises a component that is included in the base material and a component that is included in the protective layer.