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in subjects: "Ceramics"  
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Nature of simultaneous processes in plastic deformation

Description: The nature of two simultaneous processes is analyzed in detail. It is found that the experimental activation enthalpy increases with temperature for parallel processes and decreases with temperature for consecutive processes. Similarly the activation volume increases with pressure for consecutive processes and decreases with pressure for parallel processes. The creep rate stress exponent increases with stress for parallel processes and decreases with stress for consecutive processes. Each activ… more
Date: January 1, 1972
Creator: Li, J.C.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Stress-induced deformation of metals during fast-neutron irradiation

Description: From European conference on irradiation embrittlement and creep in fuel cladding and core components; London, UK (9 Nov Theoretical models for the deformation of metals subjected simultaneously to external loads and fast-neutron irradiation are discussed. The following models have been analyzed in detail: dislocation climb; climb controlled glide; and nucleation, growth, and unfaulting of dislocation loops. It is shown that the strains produced only by the climb of dislocations are equal to the… more
Date: January 1, 1972
Creator: Wolfer, W. G. & Boltax, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New absolute high pressure gauge

Description: A new absolute pressure measurement system based on the simultaneous measurement of length and ultrasonic transit times is described. The system was used to determine the transition pressure of pure mercury at 0 deg C at 7571.2 plus or minus 1.6 bars. It is particularly advantageous to use a device for calibrating secondary gauges such as manganin gauges inasmuch as it gives a highly accurate measurement of nonlinearities in such secondary gages. The gage calibrated in the present study reaches… more
Date: January 1, 1972
Creator: Ruoff, A. L.; Lincoln, R. C. & Chen, Y. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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