In September, 1999, with the generous support of NATO, scientists from 18 different nations gathered in Katsiveli, Yalta, Ukraine at the NATO Advanced Research Workshop on Hydrogen Materials Science and Chemistry of Metal Hydrides to present their research and to discuss world energy problems and possible solutions, interactions of hydrogen with materials, the role of hydrogen in materials science, and the chemistry of metal hydrides. High level and highly professional presentations were accompanied by a great deal of discussion and debate of the issues from both fundamental and global perspectives. The result was a large number of new collaborations, new directions, and better understanding of energy and materials issues. The research presented at this meeting can be found in this volume. These papers range from global perspectives such as the new vision of energy and how hydrogen fits into that future, to reviews such as a look at nickel hydride over the last 40 years, to very specific current research. A large number of papers are included on hydrogen and materials. These papers include articles on properties such as superconductivity, diffusion EMF, magnetic properties, physico chemical properties, phase composition, and permeability as a result of the interaction with or incorporation of hydrogen. Also included are papers discussing the use of hydrogen as a processing or alloying agent. The use of hydrogen in the synthesis of battery electrode materials, composite materials, and alloys is also presented.

Foreword. Superconductivity of the Ti-D and Zr-D Alloys Under Pressure; I.O. Bashkin, et al. Magnetic Properties and Magnetic Structure of ErFe11Ti Single Crystal and its Hydride; I.S. Tereshina, et al. Effect of Interstitial Hydrogen and Nitrogen on the Magnetocrystalline Anisotropy and Magnetostriction of Rare-Earth-Transition-Metal Intermetallics; S.A. Nikitin, et al. Study of Hydrogen Sulfide Dissociation Over Fe-Ti Based Alloy; O.K. Alexeeva, et al. Hydrogen Sensor for Cryogenic Vacuum Objects; A.L. Gusev, et al. Hydrogen Production from Thermocatalytic Hydrogen Sulfide Decomposition; O.K. Alexeeva. Huge Diffusion Electromotive Force in Zirconium Hydrides; M.G. Primakov, et al. The Technological Aspects of the Nickel-Iron Accumulator Batteries Recycling; V.M. Sokolov. Investigations on the Synthesis, Characterization and Hydrogenation Behaviour of Mg Based Composite Materials Mg-xwt % CFMmNi5 Prepared Through R.F. Induction Melting and Mechanical Alloying - A Comparative Study; S.S. Sai Raman, et al. Study of Structure and Hydrogen Absorption Properties of Alloys of Ti-Mn-V System; S.V. Mitrokhin, et al. Calorimetric Investigation of Hydrogen Interaction with Intermetallic Compounds at Pressure up to 2000 atm; S.N. Klyamkin, et al. The Rolling of the Strip Metal Hydride Electrodes; V.P. Katashinsky, Y.M. Solonin. Investigation of Hydrogen Sorption Properties of TiMn2 Based Alloys; J.-L. Bobet, et al. Synthesis and Properties of Mg2EuH5.5; N.V. Kandalova, et al. The Study of the Effect of Hydrogen on Physical-Mechanical Properties of Steel by Acoustic Microscopy Methods; A.I. Kustov, et al. Hydrogen as a New Alloying Element in Metals; V.I. Shapovalov. Deuterium Generation Dynamics From Titanium Foils in an Electric Pulsed Hydride Injector; Y.A. Kareev, et al. Combustion Processes in the Zr-Co-H2 System and Synthesis of Hydrides of Intermetallic Compounds; H.G. Hakobyan, S.K. Dolukhanyan. Computer Simulation of P-C-T Diagrams of Systems "Hydride-Forming Material-Hydrogen" for Technical Applications; M.V Lototsky. Metal-Hydride Systems for Hydrogen Isotopes Processing in Physical-Technical Installations; Y.V. Klochko, et al. An Investigation of the Mechanism of Pressure Autostabilization in the Discharges with Metal-Hydride Cathode; V.N. Borisko, et al. Helium-3 Impact on the Equilibrium Pressures of La-Ni-Al Tritides; S.V Demina, et al. Metal Hydrides at High Pressure; V.N. Verbetsky. Equilibrium Pressure of Protium and Deuterium Over Vanadium Dihydride Phase; A.N. Golubkov, A.A. Yukhimchuk. Methods of Protecting Friction Unit Parts of Machines and Equipment used in Microbiological and Pharmaceutical Industries from Hydrogen Wearing; A.F. Prisevok. Preparation and Properties of Ultradispersed Hydrogen-Sorbing Metals and Intermetallic Compounds; B.P. Tarasov. Hydrogen Sorbents Based on Fullerenes; B.P. Tarasov. Energy and a New Vision; P.J. Catania. Oxygen Modification of Zr(Ti)V-Ni Alloys: Phase Composition and Hydrogenation Properties; I.Y. Zavaliy, et al. Technological Characteristics of the Gas Atomized Multicomponent Intermetallics for Negative Electrodes of the Ni/MH Batteries; Y.M. Solonin, et al. Influence of Some Parameters of the PECVD on the Composition and Properties of a-SiC:H Films; L.A. Ivashchenko, et al. Modified Tubular Catalytic Membrane Reactor for Hydrogen Production from Hydrocarbons; O.K. Alexeeva, et al. The Electrochemical Behaviour of La3+ Over Ni and Mo in Molten Salts Chloride; C. Dias, E.J. Pessine. 40 Years of Nickel Hydride; B. Baranowski, H.J. Bauer. Structural Peculiarities of Multicomponent Hydridonitrides on the Basis of Metals of IV-V Groups Produced by SHZ Method; S.K. Dolukhanyan, et al. Permeation of Hydrogen Through Amorphous Ferrum Membrane; E.A. Evard, et al. Carbon Nanomaterial for Hydrogen Uptake and Storage; I.E. Gabis, et al. Hydrogen Formation on Phase Boundaries of Sn/AI; F. Muktepavela, M. Vasylyev. Electronic Structure of HyWO3 and WOx Studied by the XPS, XES, ...