Joning of Zirconia Using Platinum Film and Characterization of Its Interface(Materials, Metallurgy & Weldability)

Strength of joint of zirconias using platinum film was investigated with shear strength testing method. Fracture shear strength over 100MPa was obtained from ZrO_2(YTZ)/Pt/ZrO_2(YTZ) joint. The good strength of the joint is attributed to the formation of Pt-Zr-O compound in the interlayer, which was identified using XPS method. Partial charges of constituent ions show very large values but the detailed structure of the compound remains unclear.