Abstract

The phase relations in the system of Ag and the high-temperature superconducting phase “Bi 2Sr 2CaCu 2O 8” (2212) are studied up to a Ag content of 50 mol percent in air. The most significant observation is that the temperature of the complete melting of 2212 decreases significantly from about 895°C to some 865°C with increasing Ag content. Therefore, at constant sinter temperature between 895°C and 865°C the amount of liquid in the sample depends significantly on the Ag concentration.

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