These reports cover basic and applied research in the materials area being conducted by the Metals and Ceramics, Nonmetallic Materials, Physics, Manufacturing Technology and Applications Laboratories of the Directorate of Materials and Processes.

High Temperatures in Aeronautics is a compilation of the proceedings of the Symposium on High Temperatures in Aeronautics held in Turin, Italy, on September 10-12, 1962. The symposium provided a forum to discuss the applications of high temperatures in aeronautics and covers topics ranging from supersonic combustion to non-equilibrium flow through a nozzle, along with similarity parameters in radiation gas-dynamics and photoionization upstream of a strong shock wave. This volume is comprised of 17 chapters and begins with an overview of the effects and consequences of high temperature in aeronautics, followed by an analysis of experimental results for the dissociation of diatomic gases. A theoretical and experimental investigation of mixing and supersonic combustion is then presented, focusing on inviscid flow fields with a finite rate chemistry for a hydrogen-air reaction. Turbulent mixing for flows with large density gradients having no chemical reaction is also considered, and the results of experiments in supersonic combustion are discussed. Subsequent chapters deal with silicon nitride, its properties, and its potential use at elevated temperatures; materials problems at high temperature; and the corrosion of refractory alloys by oil ash containing vanadium. This monograph will be of interest to students, engineers, and experimental workers in the fields of astronautics and aeronautical engineering.

A total of 2519 annotated references to the unclassified report literature is presented. Subjects covered under heat transfer and fluid flow include radioinduced heating; boiling; boiler, evaporators, pump, and heat exchanger design; hydrodynamics; coolants and their properties; thermal and flow instrumentation; high temperature materials; thermal properties of materials; and thermal insulation. Subjects covered less completely include thermodynamics; aerodynamics; high temperature corrosion; corrosion specific to heat transfer systems; erosion; mass transfer; corrosion film formation and effects; coolant processing and radioactivity; radiation effects of heat transfer materials; and pertinent data of thermonuclear processes. Subject, report number availability, and author indexes are given.