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説明
<jats:p>Phase equilibrium relations in the system PbO–TiO<jats:sub>2</jats:sub>–ZrO<jats:sub>2</jats:sub> were studied by quenching in the range where the PbO content is 50 mole % and more. Isotherms were examined at 1100°, 1200°, and 1300°C and tie lines were determined between the liquid and solid solution in equilibrium. The incongruent melting point of PbZrO<jats:sub>3</jats:sub> was 1570°C and the equilibrium between liquid, PbO‐type solid, and PbZrO<jats:sub>3</jats:sub> is peritectic. Pb(Zr,Ti)O<jats:sub>3</jats:sub> solid solutions containing more than 14 mole % PbZrO<jats:sub>3</jats:sub> decomposed to liquid, ZrO<jats:sub>2</jats:sub>, and Pb(Zr,Ti)O<jats:sub>3</jats:sub> and the decomposition temperature rises from 1340° to 1570°C with increasing PbZrO<jats:sub>3</jats:sub> content. The system PbTiO<jats:sub>3</jats:sub>–PbZrO<jats:sub>3</jats:sub> should not be treated as a binary, but as a section of the ternary system.</jats:p>
収録刊行物
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- Journal of the American Ceramic Society
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Journal of the American Ceramic Society 50 (3), 129-132, 1967-03
Wiley