Accession Number : AD0622774

Title :   MATERIALS SCIENCES PROGRAM.

Descriptive Note : Annual technical rept. no. 4, 1 Jul 64-30 Jun 65.

Corporate Author : BROWN UNIV PROVIDENCE R I

Report Date : 30 JUN 1965

Pagination or Media Count : 105

Abstract : Fields of materials research at Brown University includes: Theoretical studies of mechanical behavior of elastic and viscoelastic materials; Experimental studies of nonlinear viscoelastic behavior and of fracture in polymers and glasses by stress wave loading; Studies of crystal defects, their origin and their interactions; Propagation of high-frequency stress waves in solids; Studies of structures and molecular forces in crystals by spectroscopy from xray to sub-audio frequencies; Electron and nuclear spin resonance studies of inorganic crystals and complexes; Phase transitions and rate processes in polymers and glasses from molecular theory and experiment; Studies in mechanics of solids ranging from response of structural elements to macroscopic evaluation of microscopic behavior; Physical metallurgy and corresponding studies of ionic crystals and ceramics; Electrical properties of semiconductors especially as affected by radiation; Deformation of isotropic materials, crystals, and aggregates under geological conditions and in model systems; Stability of crystalline materials in relation to temperature, pressure and chemical composition, and as affected by ion exchange and gaseous diffusion; Properties of matter at a very low temperatures; theory of superconductivity and related many-body problems; Surface state physics and electron microscopy; Paramagnetic resonance in solids, acoustic and hydrodynamic studies of solids and liquid metals.

Descriptors :   (*SCIENTIFIC RESEARCH, MATERIALS), (*MATERIALS, SCIENTIFIC RESEARCH), ELASTIC PROPERTIES, FRACTURE(MECHANICS), POLYMERS, GLASS, CRYSTAL DEFECTS, STRESSES, CRYSTAL STRUCTURE, MAGNETIC RESONANCE, PHASE STUDIES, SOLIDS, MECHANICS, CERAMIC MATERIALS, SEMICONDUCTORS, STABILITY, GEOLOGY, CRYOGENICS, SUPERCONDUCTIVITY, SOLID STATE PHYSICS, HYDRODYNAMICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE