An intermetallic compound is one consisting of two or more metallic elements present in definite proportions in alloy. They are used in a wide range of industries such as semiconductors and the aerospace industry. Thousands of tons of the nickel aluminum alloy are used worldwide every year.

J. H. Westbrook is the editor of Intermetallic Compounds, Volume 1, Crystal Structures of, published by Wiley. R. L. Fleischer is the editor of Intermetallic Compounds, Volume 1, Crystal Structures of, published by Wiley.