Abstract
We investigate the effects of starting powder on the expansion of BiPbSrCaCuO pellets with various high Tc phase contents and sintered at 853 °C. The starting BiPbSrCaCuO powders, with various high Tc phase contents and prepared by the different calcined conditions, strongly influenced the expansion behaviours of the BiPbSrCaCuO pellets. The expansion of these pellets decreased with increasing high Tc contents. The relationship among the expansion behaviours, formation of high Tc phase and gas release from the pellet during sintering are discussed in this paper.
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