Method and apparatus for the rapid determination of the thermal diffusivity of refractory materials over a wide temperature range

1966 ◽  
Vol 5 (4) ◽  
pp. 288-292
Author(s):  
V. F. Zanemonets ◽  
V. M. Grosheva ◽  
O. D. Shcherbina
Keyword(s):  
Thermal Diffusivity ◽  
Wide Temperature Range ◽  
Rapid Determination ◽  
Refractory Materials ◽  
Temperature Range

scholarly journals Thermal diffusivity of corrosion-resistant coating SDP-1

2021 ◽  
Vol 2119 (1) ◽  
pp. 012145
Author(s):  
A Sh Agazhanov ◽  
D A Samoshkin ◽  
S V Stankus
Keyword(s):  
Thermal Diffusivity ◽  
Wide Temperature Range ◽  
Laser Flash ◽  
Flash Method ◽  
Corrosion Resistant ◽  
Practical Applications ◽  
Temperature Range ◽  
Resistant Coating ◽  
Heat Resistant Coating ◽  
Corrosion Resistant Coating

Abstract In the present work, the thermal diffusivity of the SDP-1 grade nickel alloy was investigated in the wide temperature range of 300-1476 K. The SDP-1 alloy (Ni-Co-Cr-Al-Y) is the heat-resistant coating for blades of gas turbine plants, providing protection against sulfide-oxide corrosion in the temperature range of 1070-1220 K. The measurements were performed by laser flash method using LFA-427 apparatus. The estimated errors of the obtained data were 2-5% depending on temperature. The thermal diffusivity approximation equations and a table of reference values for various scientific and practical applications were obtained.

Thermal Diffusivity of 16Kh12V2FTaR Steel in a Wide Temperature Range

2013 ◽  
Vol 8 (3) ◽  
pp. 163-167
Author(s):  
Alibek Agazhanov ◽  
Igor Savchenko ◽  
Dmitriy Samoshkin ◽  
Sergey Stankus ◽  
Olga Dutova
Keyword(s):  
Phase Transitions ◽  
Thermal Diffusivity ◽  
Wide Temperature Range ◽  
Curie Point ◽  
Martensitic Steel ◽  
Laser Flash ◽  
Austenite Phase ◽  
Laser Flash Method ◽  
Flash Method ◽  
Temperature Range

Thermal diffusivity of the ferritic-martensitic steel 16Kh12V2FTaR in the temperature range from 296 to 1274 K has been measured by the laser flash method with the error of 2–4 %. The approximating equations have been obtained, the Curie point of steel and the temperatures of martensitic-austenite phase transitions have been determined

scholarly journals Phonon hydrodynamics and ultrahigh–room-temperature thermal conductivity in thin graphite

Science ◽  
2020 ◽  
Vol 367 (6475) ◽  
pp. 309-312 ◽  
Author(s):  
Yo Machida ◽  
Nayuta Matsumoto ◽  
Takayuki Isono ◽  
Kamran Behnia
Keyword(s):  
Thermal Conductivity ◽  
Thermal Diffusivity ◽  
Wide Temperature Range ◽  
Room Temperature ◽  
Phonon Dispersion ◽  
High Conductivity ◽  
Temperature Range ◽  
A Value ◽  
Out Of Plane ◽  
Intimate Link

Allotropes of carbon, such as diamond and graphene, are among the best conductors of heat. We monitored the evolution of thermal conductivity in thin graphite as a function of temperature and thickness and found an intimate link between high conductivity, thickness, and phonon hydrodynamics. The room-temperature in-plane thermal conductivity of 8.5-micrometer-thick graphite was 4300 watts per meter-kelvin—a value well above that for diamond and slightly larger than in isotopically purified graphene. Warming enhances thermal diffusivity across a wide temperature range, supporting partially hydrodynamic phonon flow. The enhancement of thermal conductivity that we observed with decreasing thickness points to a correlation between the out-of-plane momentum of phonons and the fraction of momentum-relaxing collisions. We argue that this is due to the extreme phonon dispersion anisotropy in graphite.

Coefficient of thermal diffusivity of ChS-139 steel in wide temperature range

2013 ◽  
Vol 20 (5) ◽  
pp. 651-653 ◽  
Author(s):  
A. Sh. Agazhanov ◽  
S. V. Stankus ◽  
D. A. Samoshkin
Keyword(s):  
Thermal Diffusivity ◽  
Wide Temperature Range ◽  
Temperature Range

Determination of the reflectivity of liquid semiconductors over a wide temperature range

1995 ◽  
Vol 16 (3) ◽  
pp. 841-849 ◽  
Author(s):  
R. Černý ◽  
P. Přikryl ◽  
K. M. A. El-Kader ◽  
V. Cháh
Keyword(s):  
Wide Temperature Range ◽  
Temperature Range ◽  
Liquid Semiconductors

Rapid determination of coefficients of thermal diffusivity and thermal conductivity of refractories

Refractories ◽  
1963 ◽  
Vol 4 (5-6) ◽  
pp. 218-225
Author(s):  
D. V. Budrin ◽  
V. D. Suchkov ◽  
Yu. G. Yaroshenko
Keyword(s):  
Thermal Conductivity ◽  
Thermal Diffusivity ◽  
Rapid Determination
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