Metallurgical Features of Plasma Surfacing Repair of Magnesium Alloys

Metallurgist - Results are provided for studying formation of the structure and properties of products made of high-strength light alloy ML5 of the magnesium-aluminum-manganese-zinc system using...     

Pulse determination of thermal diffusivity and thermal conductivity for hemispherical specimens: nickel

A method is described for determining the thermal diffusivity, specific heat, and thermal conductivity in a hemispherical volume on the basis of duration of the reference signal.Notation r radius - R radius - r dimensionless coordinate - dimensionless temperature - time - _i duration of heat pulse - _1/2 time for temperature signal at r to attain half the maximum value - q_o amount of heat - a thermal diffusivity - thermal conductivity - density - c_p heat capacity Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 40, No. 5, pp. 864–869, May, 1981.     

Automated equipment for pulse measurement of solid thermal diffusivity

Translated from Izmeritel'naya Tekhnika, No. 8, p. 49, August, 1990.     

Measurements of the Thermal Diffusivity and Thermal Conductivity of Metals Near the Melting Point

A pulsed technique for measuring the thermal diffusivity a and thermal conductivity of spherical samples with an allowance for the spatial–time energy distribution over the laser-beam cross section is described. The measured temperature dependences () and () for solid and liquid tin near the melting point of samples are presented. The a and measurement accuracies are 5 and 15%, respectively.     

Analysis of the Errors in Measuring the Thermal Characteristics of an Unbounded Plate by the Pulse Method

The errors in measuring the thermal diffusitivity and heat capacity by the pulse method are analyzed. The errors due to heat exchange, the finite dimensions of the plate and the length of the heat pulse, as well as distortions due to preliminary signal processing (filtering) are considered.     

Effect of heat transfer in the impulse method on the measurement of thermophysical properties

The paper considers the effect of heat transfer in the impulse method of measurement on the value of the maximum temperature and on the time for achieving its half-value. Taking this heat transfer effect into account increases the accuracy of measuring the thermophysical properties.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 51, No. 2, pp. 284–287, August, 1986.     

Basic methods for analytical chemical safety monitoring in the destruction of chemical weapons

Basic methods were examined for analytical chemical monitoring at chemical weapons facilities. The database for this monitoring is found in a separate section 1-KhO of the State Register of Measurement Methods, which is part of the Federal Information Foundation for the Assurance of Measurement Uniformity. These monitoring methods are based on analysis of the project design documentation of chemical weapon destruction facilities and have emerged from investigations in chemical weapon disarmament over the past 11 years, in particular, at the Inversiya Technology Center.