Results 211 to 220 of about 33,884 (264)

Resistance to Thermal Shock

Journal of the American Rocket Society, 1951
The purpose of this investigation is to demonstrate that the resistance of ceramic and ceramal materials to thermal shock can he determined by analyzing the nonsteady thermal stresses in the material. First the nonuniform temperature distribution is computed by using the heat conduction equation.
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Heat shock proteins and thermal resistance in yeast

Biochemical and Biophysical Research Communications, 1980
Abstract A rapid shift in cultivation temperature of Saccharomyces cerevisiae from 23° to 36° results in protection from death due to extreme heat treatment (52°). The level of this acquired thermal resistance shows an excellent correlation with the cellular level of the heat shock proteins which are transiently induced by such a temperature ...
L, McAlister, D B, Finkelstein
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Analysis of thermal shock resistance of solids based on the nonlocal elastic theory, Part II: Thermal shock cracking and thermal shock resistance

WIT Transactions on Engineering Sciences, 2014
This is the continuity of the Part I of this research. In this part, the thermal shock resistance behavior of a plate subjected to a sudden thermal load will be studied. Two types of crack problems are solved: an edge crack under cold shock and a center crack under hot shock.
Li, J. E., Wang, Baolin (R17839)
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Thermal shock resistant stopper tubes

Refractories, 1968
We have established the possibility of manufacturing chamotte stopper tubes by the semidry pressing method with enhanced thermal shock resistance, and having reliable properties in operation, by using preliminary paraffinized chamotte in the batch.
G. V. Kukolev, I. I. Nemets, G. B. Dobrovol'skii, M. P. Peresada   +3 more
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Thermal shock resistance of platinum alloys

Metal Science and Heat Treatment, 1974
Alloying that causes a reduction of grain size and ductility of platinum alloys lowers the resistance to thermal shock at 1350–1400°C.
L. A. Medovoi, E. I. Rytvin
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Thermal shock resistance of Mg-PSZ

Journal of Materials Science, 1985
The thermal shock resistance (TSR) of Mg-PSZ (a partially stabilized ZrO2) containing either tetragonal t- or monoclinic m-ZrO2 precipitates was studied. The samples containing t-ZrO2 had superior TSR, particularly in having a higher retained strength after thermal fracture had been initiated.
A. H. Heuer, L. H. Schoenlein
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Thermal-Shock-Resistant Materials

1971
Aerospace applications which take advantage of the refractory nature of ceramic materials also impose upon them severe conditions of thermal shock. The severity of this thermal environment exceeds that for which it is possible to prevent crack nucleation; therefore, the design of thermal-shock-resistant materials is based on the concept of preventing ...
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Thermal-shock resistance of magnesial refractories

Refractories, 1981
In order to study the thermally induced loss of strength of flat, rectangular specimens, we have proposed a method of evaluating the thermal-shock resistance of the materials based on a determination of the thermal load corresponding to the half-loss of strength of the specimen. In this case, the capacity of the material to work with specified signs of
K. A. Kazakyavichyus, D. V. Narbutene, K. V. Simonov, E. P. Mezentsev   +3 more
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Thermal Shock Resistance of Ceramic Foams

Journal of the American Ceramic Society, 1999
Thermal shock behavior of a variety of open‐cell ceramic foams was evaluated using infrared heating and forced air cooling. The extent of damage after thermal shock was determined by a nondestructive, dynamic resonance technique. The damage in foams was found to be strongly dependent on cell size and weakly dependent on density. In
Venkata R. Vedula, David J. Green, John R. Hellman   +2 more
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Dynamic Thermal Shock Resistance

1974
When DUHAMEL /1/, in 1835, had laid down the foundations of thermo-elasticity, he had derived already the coupled heat conduction equation as well as the corresponding equations of motion. With respect to thermally induced waves and vibrations, however, he asserted the following: “I1 est donc permis, surtout a cause de la lenteur avec laquelle s’opere ...
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