The effect of PT on phases and electrical properties in Ba-Y-Cu-O system |
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| Authors: | Chen Zuyao Qian Yitai Cheng Tingzhu Lin Rong Zhou Guien |
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| Affiliation: | 1. Laboratory of Crystal Chemistry and Functional Materials, Department of Applied Chemistry , University of Science and Technology of China , Hefei, Anhui, People's Republic of China;2. Laboratory of Crystal Chemistry and Functional Materials, Department of Applied Chemistry , University of Science and Technology of China , Hefei, Anhui, People's Republic of China;3. Centre of Structure and Element Analysis , University of Science and Technology of China , Hefei, Anhui, People's Republic of China |
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| Abstract: | Several new phases containing platinum in Y-Ba-Cu-O system are reported in this paper. When Ba-Y-Cu-O system containing platinum is sintered at 950°C, two hexagonal phases YBa2(Pt, Cu)3O9-δ and Ba4Pt1+x Cu2-x Cu2-x O9-δ (x = 0.1 – 0.9) are found, respectively. The super-K2NiF4 structure Ba x Y2-x (Cu, Pt)O4 is obtained above 1000°C in the Y-Ba-Cu-O system containing platinum. Electrical properties of these phases are also reported. |
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| Keywords: | Y-Ba-Cu-O system Phase transition hexagonal phase superlattice-K2 NiF4, a2 Y(Pt, u)3O9-δ, a4Pt1+x Cu2-x O9-δBa x Y2-x (Cu, Pt)O4 |
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