Accession Number : AD0903994

Title :   Thermal properties and Grueneisen Parameters for Several Polymers, Concretes, and Composite Materials.

Descriptive Note : Technical rept. Apr 70-Dec 71,

Corporate Author : ALBUQUERQUE UNIV NM

Personal Author(s) : Urzendowski, Rosalie ; Guenther, Arthur H.

Report Date : SEP 1972

Pagination or Media Count : 107

Abstract : DTA, differential scanning calorimetry, thermomechanical analysis, and TGA were used to evaluate the thermal properties of several polymers, refractories, and solid propellants. Reproducibility was attained which permitted identification by comparing a curve to a spectrum of predetermined curves measured at specific conditions. The combined thermal methods define such parameters as linear thermal expansion coefficients, specific heats, transition temperatures, decomposition temperatures, fusion temperatures, kinetic rate constants, Arrhenius frequency factors, activation energies, and related thermodynamic functions. Grueneisen parameters are presented which were derived by combining thermal and ultrasonic measurements. (Author, modified-PL)

Descriptors :   (*CONCRETE, THERMAL PROPERTIES), (*COMPOSITE MATERIALS, THERMAL PROPERTIES), (*SOLID ROCKET PROPELLANTS, THERMAL PROPERTIES), (*POLYMERS, THERMAL PROPERTIES), THERMODYNAMICS, HAFNIUM COMPOUNDS, TITANATES, PHENOLIC PLASTICS, EPOXY RESINS, QUARTZ, CARBON FIBERS, REFRACTORY METALS, EQUATIONS OF STATE, SPECIFIC HEAT, THERMAL EXPANSION, ULTRASONIC RADIATION, VELOCITY, PHASE STUDIES, DENSITY, THERMOGRAVIMETRIC ANALYSIS, DIFFERENTIAL THERMAL ANALYSIS, HEAT OF ACTIVATION, TRANSITION TEMPERATURE, DECOMPOSITION.

Subject Categories : Polymer Chemistry
      Refractory Fibers
      Laminates and Composite Materials
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE