1;1 Chemical Vapor Transport Reactions - an Introduction;15 1.1;1.1 Historical Development and Principles;15 1.2;1.2 Experimental;17 1.3;1.3 Thermodynamic Considerations;18 1.4;1.4 Equilibrium Solids in Source and Sink;23 1.5;1.5 Transport Agent;24 1.6;1.6 Overview of Vapor Deposition Methods;27 1.7;Bibliography;30 2;2 Chemical Vapor Transport - Models;31 2.1;2.1 Thermodynamic Basis for Understanding Chemical Vapor Transport Reactions;33 2.2;2.2 Condensed Phases in a Transport Experiment - the Most Simple Case;42 2.3;2.3 Complex, Congruent Transports;45 2.4;2.4 Incongruent Dissolution and Quasi-stationary Transport Behavior;50 2.4.1;2.4.1 Phase Relations Accompanying Incongruent Dissolution of a Solid;50 2.4.2;2.4.2 The Extended Transport Model;53 2.5;2.5 Non-stationary Transport Behavior;74 2.5.1;2.5.1 Chemical Reasons for the Occurrence of Multi-phase Solids;74 2.5.2;2.5.2 The Time Dependence of Chemical Vapor Transport Experiments with Multi-Phase Solids;82 2.5.3;2.5.3 The Model of Co-operative Chemical Vapor Transport;89 2.6;2.6 Diffusion, Stoichiometric Flow, and Transport Rate;92 2.6.1;2.6.1 Steady-state Diffusion;92 2.6.2;2.6.2 One-dimensional Steady-state Diffusion as Rate-determining Step;92 2.6.3;2.6.3 The Use of X for the Calculation of Transport Rates of Complex Transport Systems in Closed Ampoules;95 2.6.4;2.6.4 The Use of Solubility X in Open Transport Systems;97 2.6.5;2.6.5 An Example - Calculation of the Transport Rate for the Nickel/Carbon Monoxide System;98 2.7;2.7 Diffusion Coefficients;101 2.7.1;2.7.1 The Binary Diffusion Coefficient D0;101 2.7.2;2.7.2 D0 in Multi-compound Systems;105 2.8;2.8 Survey of Gas Motion in Ampoules;107 2.8.1;2.8.1 General Remarks;107 2.8.2;2.8.2 Experiments on Gas Motion - Diffusion and Convection in Closed Ampoules;109 2.8.3;2.8.3 Experiments Concerning Thermal Convection;113 2.9;2.9 Chemical Kinetics of Heterogeneous Reactions;117 2.9.1;2.9.1 Reaction Behavior at an Atomic Level;117 2.9.2;2.9.2 Kinetic Influences Observed by Transport Experiments;119 2.9.3;2.9.3 Some Observations on Catalytic Effects;120 2.9.4;2.9.4 Indirect Transport;121 2.10;Bibliography;122 3;3 Chemical Vapor Transport of Elements;127 3.1;3.1 Transport with Halogens;128 3.2;3.2 Conproportionation Reactions;132 3.3;3.3 Reversal of the Transport Direction;134 3.4;3.4 Transport via Gas Complexes;136 3.5;3.5 Transport with the Addition of Hydrogen Halides and Water;137 3.6;3.6 Oxygen as a Transport Agent;138 3.7;3.7 Technical Applications;139 3.8;Bibliography;147 4;4 Chemical Vapor Transport of Metal Halides;153 4.1;4.1 Formation of Higher Halides;154 4.2;4.2 Conproportionating Reactions;155 4.3;4.3 Formation of Gas Complexes;155 4.4;4.4 Halogen Transfer Reactions;158 4.5;4.5 Formation of Interhalogen Compounds;159 4.6;Bibliography;164 5;5 Chemical Vapor Transport of Binary and Multinary Oxides;167 5.1;5.1 Transport Agents;172 5.2;5.2 Solids;179 5.2.1;5.2.1 Group 1;179 5.2.2;5.2.2 Group 2;180 5.2.3;5.2.3 Group 3, Lanthanoids and Actinoids;182 5.2.4;5.2.4 Group 4;198 5.2.5;5.2.5 Group 5;204 5.2.6;5.2.6 Group 6;214 5.2.7;5.2.7 Group 7;220 5.2.8;5.2.8 Group 8;226 5.2.9;5.2.9 Group 9;229 5.2.10;5.2.10 Group 10;231 5.2.11;5.2.11 Group 11;236 5.2.12;5.2.12 Group 12;239 5.2.13;5.2.13 Group 13;241 5.2.14;5.2.14 Group 14;246 5.2.15;5.2.15 Group 15;254 5.2.16;5.2.16 Group 16;256 5.3;5.3 Overview of the Trasport of Oxides;259 5.4;Bibliography;289 6;6 Chemical Vapor Transport of Oxido Compounds with Complex Anions;305 6.1;6.1 Transport of Sulfates;306 6.2;6.2 Transport of Phosphates, Arsenates, Antimonates, and Vanadates;309 6.2.1;6.2.1 Chlorine as Transport Agent for Anhydrous Phosphates;310 6.2.2;6.2.2 Halogens Combined with Reducing Additives as Transport Agents for Phosphates;311 6.2.3;6.2.3 Transport of Multinary Phosphates;317 6.2.4;6.2.4 Deposition of Thermodynamically Metastable Phosphates from the Gas Phase;318 6.2.5;6.2.5 Formation of Silicophosphates during the Transport of Phosphates;320 6.2.6;6.2.6 Transport of