The major concern of this book is high-temperature corrosion; a form of surface disintegration that leads to high running costs, as well as to environmental and/or security problems.

Numerous commercial processes operate at temperatures exceeding 500 degrees Celsius. The materials used in high-temperature structures have design constraints which are in addition to those on materials used at, or near to, room temperature. These important additional constraints include time-dependent inelastic strain (creep), thermal stability of the microstructure and high-temperature corrosion. The addition of these constraints to those of low cost, strength, toughness, machinability, formability, weldability, and combinations of these, has led to the intensive development, over the past 50 years, of an extensive group of metallic materials: generally referred to as "high-temperature alloys".

The degradation of materials and coatings in aggressive environments continues to be of great relevance to a wide range of industrial applications. The topic is of vital economic concern to the transportation, energy generation, and chemical processing industries in the developing, as well as the developed, nations of the world. The dual thrusts of conservation of resources and protection of the environment here strongly influence the tone of the technical submissions and thus again reflect the world-wide concern.

This book covers, on close to 2000 pages, all aspects of basic and applied diffusion research in all important engineering materials, including metals and intermetallics, elemental and compound semiconductors, amorphous and nanocrystalline materials and oxides.

This "state-of-the-art" volume presents the new developments in fundamental research and in industrial applications of Molten Salts. Special attention is placed on recent developments of special topics such as Electrodeposition of Refractory Metals (Niobium, Molybdenum), and Organic Chemistry and Electrochemistry in Molten Salts.