Thermophysical and Mechanical Properties of ZrO_2 (CaO) Powder and Colloidal Zirconia Sol Dip-Cost Layer Used for Titanium Investment Casting

摘要

Both green and residual bending strength of the dip-coat layer composed of ZrO_2 (CaO) powder and colloidal zirconia sol binder are studied and the effects of process factors on the strength of dip-coat layer are interpreted, using the results of TG-DTA, TMA and SEM analyses of the fracture morphology of the coating layer and following the strength theory for porous body.