Transport in Nonstoichiometric Compounds (Nato Science Series B:, 129)

Prior to the 9th International Conference on Reactivity Solids in Krakow, Poland a group of about 25 international scientists held a special conference entitled "Transport in Nonstoichiometric Compounds" in late Aug. 1980 in Mogilany, Poland (near Krakow). This conference was well received in view of the interaction between the participants, as well as the resulting publication of the proceedings (Elsevier Scientific Publishing Company, 1982, edited by J. Nowotny). At this first conference the participants decided that it would be desirable to organize similar conferences at about two year intervals. Thus, a second meeting was held in late June, early July at Alenya, Pyrenees Orientales, France. This conference had a larger number of participants, about 50, but still managed to promote excellent interaction between all the participants. These proceedings, with editors G. Petot-Ervas, Hj. Matzke and C. Monty, have also been published by Elsevier as a special edition of the journal, Solid State lonics, Vol. 12 (1984). In view of the success of the initial two conferences, a third meeting was organized and held at The Pennsylvania State University, University Park, PA., 16802, U.S.A. from 11 June 84 to 15 June 84. The proceedings of this conference are presented in the following text. Front Matter....Pages i-x Front Matter....Pages 1-1 Transport in Materials Containing a Dispersed Second Phase....Pages 3-16 Thermogravimetric and Electrical Conductivity Studies of Mg-DOPED LaCr0 3 and La-DOPED SrTi0 3 ....Pages 17-30 Experimental Study of Mo0 3 Electrical Conductivity Changes under Low Oxygen Pressures....Pages 31-42 Electrical Properties of a Fe 2 (MoO 4 ) 3 Catalyst....Pages 43-50 Anisotropy of Electrical Properties in Pure and Doped αFe 2 O 3 ....Pages 51-60 Analysis of the Mobility of the Electronic Defects in Co 1 -δ0....Pages 61-71 A ++ /Ti Nonstoichiometry in Alkaline Earth Titanates, ATi0 3 ....Pages 73-85 Defect Structure and Transport in Oxygen excess Cerium Oxide-Uranium Oxide Solid Solutions....Pages 87-99 Transport in Anion Deficient Fluorite Oxides....Pages 101-110 The Role of Dopant Ionic Radius in O 2- — Conducting Solid Electrolytes....Pages 111-124 Front Matter....Pages 125-125 The Haven Ratio in Terms of the Self-Diffusion of Charge....Pages 127-137 Use and Misuse Of Chemical Diffusion Theory....Pages 139-154 Influence of Heterovalent Impurities on the Mass Transport in p-Type Semiconducting Oxides....Pages 155-168 Concentration Distribution for Diffusion in A Temperature Gradient....Pages 169-187 Oxygen Self-Diffusion in Cubic ZrO 2 Solid Solutions....Pages 189-202 Oxygen Self-Diffusion in Y 2 O 3 and Y 2 O 3 -ZrO 2 Solid Solution....Pages 203-215 Determination of Oxygen Diffusivities in β And β′′ Alumina By 18 O/ 16 O Exchange....Pages 217-226 Chemical Diffusion in CoO....Pages 227-242 Alteration of CoO Wafers in an Oxygen Chemical Potential Gradient....Pages 243-253 Self-Diffusion and Creep Studies of the Oxygen Sublattice Point Defects In CoO....Pages 255-267 Front Matter....Pages 125-125 Mechanisms of Impurity Diffusion in Rutile....Pages 269-284 Diffusion of 51 Cr Tracer in Cr 2 O 3 and the Growth of Cr 2 O 3 Films....Pages 285-295 Defect Structure and Transport Properties of the Manganese Oxides Manganosite (Mn 1−Δ O) and Hausmannite (Mn 3−δ O 4 )....Pages 297-313 The Thermodynamic Factors for the Cation Diffusion in a P-Type Oxide AO Doped with a Monovalent Impurity....Pages 315-329 Radiation Enhanced Diffusion in Nuclear Carbides....Pages 331-342 Front Matter....Pages 343-343 Volume, Grain Boundary and Surface Diffusion of an Isotope in some Refractory Oxide Systems: A Comparison....Pages 345-358 Diffusion of 18 O Tracer in NiO Grain Boundaries....Pages 359-370 Near — Surface Mass Transport in Nickel Oxide....Pages 371-383 Diffusion in Cr 2 O 3 Via Initial Sintering Experiments....Pages 385-395 The Atomistic Simulation of Impurity Segregation at the Surfaces of MgO and CaO....Pages 397-408 Front Matter....Pages 409-409 Simultaneous Erosion and Oxidation of Nickel at High Temperatures....Pages 411-427 On the Phase Transformation During Reduction of Magnetite at High Temperatures....Pages 429-440 The Preparation of Nonstoichiometric Sulphides by Solid-Gas Reactions....Pages 441-449 The Reactions of Cobalt, Iron and Nickel in SO 2 Atmospheres: Similarities and Differences....Pages 451-461 The Influence of Ion Implantation of Reactive Elements on the Growth of Cr 2 O 3 Scales on Ni-20% Cr at High Temperature....Pages 463-479 Diffusional Growth of Al 2 O 3 Scales and Subscales on Ni-Al, Fe-Al and Fe-Mn-Al Alloys....Pages 481-493 Front Matter....Pages 495-495 The Behaviour of Protons in Oxides....Pages 497-503 Defect Structure and Transport Properties of Titanates....Pages 505-516 Structure and Stoichiometry in Lithium Inserted Metal Oxides....Pages 517-526 A Predictive Molecular Orbital Theory Applied to Defects and Structures of Transition Metal Oxides....Pages 527-537 Front Matter....Pages 495-495 Defect Clustering In Rock-Salt Structured Transition Metal Oxides....Pages 539-550 Erratum....Pages 551-551 Back Matter....Pages 551-563