PLZTセラミックスと電極金属との界面及び濡れ性

概要

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The wetting of (Pb, La)(Zr, Ti)O_3 ceramics with various electrode metals were studied by measuring the contact angle in a vacuum atmosphere. Two kinds of PLZT were used : x=0.07, y=0.35, and x=0.12, y=0.60 in (Pb_<1-x>, La_x)(Zr_<1-y>, Ti_y)O_3. The metals studied were Ag, Al, In, Sn, Bi and Cu. The metals forming thermodynamically unstable oxides showed low contact angles: 98゜ with Ag and less than 90゜ with Cu. The contact angles were dependent on the composition of PLZT. The other metals indicated the obtuse contact angles as large as 140゜ since the metals forming the stable oxides can not move by being protected with the oxide. The wettability of a metal on the oxide ceramics can be predicted by the redox reactions of metal and a certain element in the ceramics. In and Sn were bonded with the PLZT but not with BaTiO_3.
社団法人日本セラミックス協会の論文
1993-01-01