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2005
Equilibria
E 4000
26- 009
Phase Equilibrium of the In2O3—TiO2—MO (M: Ca, Sr) Systems and the Structure of In6Ti6CaO22 . — Phase relations in the title systems are studied at 1350 °C in
air. The In2O3—TiO2—CaO system contains the ternary compound In6Ti6CaO22 , while
the In2O3—TiO2—SrO system exhibits a simple ternary phase diagram without any ternary phases. The structure of In6Ti 6CaO22 can be expressed by an incommensurate composite model that consists of two subsystems. The overall structure is refined in the
superspace group C2/m(0β0)s0. The compound is a semiconductor with a band gap of
about 3.5 eV and its electrical conductivity depends strongly on the oxygen partial pressure. — (LI, Z.; SUN, J.; YOU, L.; JIAO, H.; LI, G.; JING, X.; LIAO, F.; LIN*, J.;
Chem. Mater. 17 (2005) 8, 2186-2192; Natl. Lab. Rare-Earth Chem. Mater., Coll.
Chem. Mol. Eng., Peking Univ., Beijing 100871, Peop. Rep. China; Eng.) —
Schramke
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