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Measurement of Equilibrium Concentrations of Vacancies in Copper
(2014-07-02)
The net added fraction of thermally-generated atomic sites, ΔNN, has been measured, during equilibrium heating to near the melting point, in a coarse-grained copper bar of 99.999% purity. The linear thermal expansion, ΔLL, ...
Temperature Dependence of the Elastic constants of Cu, Ag, and Au above Room Temperature
(1966-02-16)
The adiabatic elastic constants C44, 1/2(Cll-C12), and 1/2(cll+C12+2c44) have been measured for copper,
silver, and gold over the temperature range from 300° to about BOO 0K using the conventional ultrasonic
pulse-echo ...
The Relation Between Bulk Modulus and Relative Enthalpy: a Broad-Based Thermodynamic Analysis and a Case Study on Aluminum
(2001-07-17)
By postulating a linear relationship between logarithmic bulk modulus and relative enthalpy, we have developed in this
paper a thermodynamic framework that provides a link between thermal properties and bulk modulus under ...
Measurment of Equilibrium Concentrations in Aluminum
(1959-07-31)
Measurements of change in length and change in lattice parameter were made at identical temperatures on 99.995% aluminum in the temperature range 229 to 656°C. Length changes, ΔL, were measured on an unconstrained horizontal ...
Temperature Dependece of the Elastic Constants of Aluminum
(1979-03-02)
The single crystal elastic constants of aluminum have been measured using a piezoelectric composite oscillator from room temperature to just 20K below the melting point. The elastic moduli differ markedly from previous ...
The High Temperature Elastic Moduli of Aluminum
(1968-11-04)
Measurements of the elastic moduli of aluminum over the temperature range 300°–930°K are reported. These data together with those reported for T < 300°K, show that all elastic moduli, including the shear moduli, vary ...
Temperature Variation of the Elastic Constants of Cubic Elements. I. Copper
(1954-09-08)
The ultrasonic pulse technique has been used in conjunction with a specially devised cryogenic technique to measure the velocities of 10-Mc/sec acoustic waves in copper single crystals in the range from 4.2°K to 300°K. The ...
The composite piezoelectric oscillator is employed to measure the adiabatic elastic moduli of crystalline aluminum over the temperature interval 63°K to 773°K.
(1953-04-28)
The composite piezoelectric oscillator is employed to measure the adiabatic elastic moduli of crystalline
aluminum over the temperature interval 63'K to 773 K. The data permit a valid extrapolation to O'K. The
Debye ...
Annealing Kinetics of Voids and the Self-Diffusion Coefficient in Aluminum
(2014-01-20)
The annealing kinetics of voids in 99.9999 wt% pure aluminum were studied over the temperature range 85 to 209 °C in thin specimens by transmission electron microscopy. The isothermal shrinkage of individual voids was ...
Self-diffusion in aluminum at low temperatures
(2014-01-20)
Values of the self-diffusivity of pure aluminum in the temperature range 130∮ to 200° have been determined by measuring the rate of annealing of prismatic and faulted dislocation loops in thin foils of quenched 99.999 pct ...