caa a22 4500 467926913 CHVBK 20180406152932.0 cr unu---uuuuu 170328e20061201xx s 000 0 eng 10.1134/S0020168506130024 doi (NATIONALLICENCE)springer-10.1134/S0020168506130024 Zlomanov V. Faculty of Chemistry, Moscow State University, Vorob'evy gory 1, 119899, Moscow, Russia aut Crystal growth of nonstoichiometric compounds [Elektronische Daten] [V. Zlomanov] A key issue in materials research is the preparation of crystals of inorganic compounds with predetermined composition, structure, and, hence, properties. In connection with this, this paper scrutinizes the concepts of stoichiometry, nonstoichiometry, and deviation from stoichiometry and the use of phase diagrams in selecting conditions for the crystal growth of nonstoichiometric compounds. Since nonstoichiometry is associated with structural defects, attention is also paid to defect classification and formation. The behavior of defects in crystals of oxides, chalcogenides, carbides, and other compounds of transition metals ranges from the pointdefect regime, controlled by entropy, to the enthalpy-controlled regime. To develop an appropriate theory of nonstoichiometric compounds, it is then necessary to address crystal-chemical and thermodynamic issues. This paper is also concerned with the defect structure of highly imperfect crystals of nonstoichiometric compounds with a broad homogeneity range: the concepts of defect and structural transition due to defect interactions and temperature effect. The thermodynamic aspect of the problem includes criteria for evaluating the stability of imperfect nonstoichiometric crystals. We also consider the specifics of the concepts of existing, stable, and metastable phases, spinodal decomposition conditions, and issues associated with phase equilibria in homologous series of compounds with narrow homogeneity ranges. The paper also deals with synthesis methods, nonstoichiometry control, and criteria for evaluating the homogeneity of nonstoichiometric crystals. Pleiades Publishing, Inc., 2006 Inorganic Materials Nauka/Interperiodica 42(2006-12-01), S19-S48 0020-1685 42<S19 2006 42 10789 https://doi.org/10.1134/S0020168506130024 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506130024 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Zlomanov V. Faculty of Chemistry, Moscow State University, Vorob'evy gory 1, 119899, Moscow, Russia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42(2006-12-01), S19-S48 0020-1685 42<S19 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer