Author: John Francis McIlwainPublisher:
ISBN:
Category :
Languages : en
Pages : 202
Book Description
The Recovery of Low Temperature Neutron Irradiation Effects in Vanadium
Author: John Francis McIlwainPublisher:
ISBN:
Category :
Languages : en
Pages : 202
Book Description
Low Temperature Recovery of Radiation Damage in Vanadium
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Some kind of order may emerge from the numerous anomalies in the low- temperature recovery of irradiated V if it is assumed that Stage I (first recovery by interstitial migration) occurs below 4°K. Present supporting evidence includes: from both thermal neutron and fission neutron damage studies (1) a continuous, nearly structureless recovery from 4 to 43°K independent of dose; (2) a nonlinear, decreasing damage rate at 4°K; and (3) from 6$sup 0$K electron irradiations near threshold energy there is derived a Frenkel pair resistivity which is so small as to suggest significant loss of defects during irradiation. The assumption of a very low-lying Stage I also helps to explain several other unusual aspects of the data, especially those relating to the sharp recovery peak at 47°K. This is clearly a single first-order process (with a measured activation energy of 0.13 eV), but it has a strong positive dependence of population percentage upon dose, opposite to Stage II impurity detrapping peaks in several fcc metals. Also, the peak has a strong negative dependence upon irradiation temperature when equal doses put in at 4 and 31°K are compared. (auth).
Nuclear Science Abstracts
Author: Effects of Neutron Irradiation on High-purity Vanadium
Author: Richard Francis Stevens (Jr)Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 36
Book Description
Because of the potential elevated-temperature applications of high-purity vanadium in nuclear reactors an investigation was conducted to determine the effects of nuclear irradiation upon the properties of the pure metal. The results of this investigation indicated that the effects caused by irradiation, increased strength and hardness and decreased ductility, could be removed by annealing at 650°C. Thus, when suitable protected, high-purity vanadium metal could be used in the portions of nuclear reactors subjected to temperatures of 600°C and to neutron bombardment levels as high as 1.8x1020 neutrons/cm2/sec. (NVT).
Energy Research Abstracts
Author: Fusion Energy Update
Author: The Effects of Neutron Irradiation Upon the Strength and Ductility of Vanadium
Author: G. R. SmolikERDA Energy Research Abstracts
Author: United States. Energy Research and Development AdministrationPublisher:
ISBN:
Category : Power resources
Languages : en
Pages : 980
Book Description
ERDA Energy Research Abstracts
Author: United States. Energy Research and Development Administration. Technical Information CenterPublisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1680
Book Description
Author: