Gas pressure effects on materials processing and design; Proceedings of the Symposium, Boston, MA, Dec. 3-5, 1991

The present volume on gas pressure effects on materials processing and design discusses porous materials, densification, electronic materials and glass, and superconductors. Attention is given to the next generation of high-temperature structural intermetallic compounds, the fabrication of volumetric dilatometer using buoyancy under high pressure gas, materials processing through levitation in high gas pressure, and high nitrogen concentration in Fe-Cr-Ni alloys. Topics addressed include the influence of hipping pressure on the strength and porosity of porous copper, the production of porous Si3N4 ceramics with a 100-percent beta phase, containerless hot isostatic processing of titanium diboride ceramics, and the densification of ceramics by gas overpressure sintering. Also discussed are the effects of isostatic gas pressure on the optical quality of MgAl2O4 spinel, X-ray induced optical absorption in densified silica glass in the UV region, and a characterization of hot isostatically pressed Bi-Sr-Ca-Cu-O as a function of consolidation variables.