Low-temperature radiation embrittlement of copper alloys

Studies of Low Temperature, Low Flux Radiation Embrittlement of Nuclear Reactor Structural Materials

Radiation Embrittlement Prediction Models and The Impact of Irradiation Temperature

A new methodology is developed for the prediction of RPV embrittlement that utilizes a combination of domain models and nonlinear estimators including neural networks and nearest neighbor regressions. The Power Reactor Embrittlement Database is used in this study. The results from newly developed nearest neighbor projective fuser indicate that the combined embrittlement predictor achieved about...

Studies of Radiation Embrittlement of Model Alloys by Thermoelectric Measurements and Positron Annihilation Spectroscopy

One of the basic mechanisms of radiation embrittlement of steels and welds is due to matrix damage. Embrittlement results in a raise in the ductile-to-brittle transition temperature, which is normally used as indicator of the degradation status of the material. Other methods different than mechanical tests can be used to follow embrittlement like small punch test, non-destructive measurements o...

Low-temperature magnetization in Ni-rich g-Ni100ÀxÀyFexVy alloys

Detailed studies of the temperature dependence of the spontaneous magnetization have been made in eight different compositions of g-Ni1002x2yFexVy ~4<x<17; 2<y<18! alloys at a magnetic field of 30 kOe between 4.2 and 50 K. The values of the Curie temperature (TC) and the saturation magnetization (M 0) are found to decrease with the increase of V. This is understood since the addition of V ~whic...

Low temperature formation Silver-Copper alloy nanoparticles using hydrogen plasma treatment for fabrication of humidity sensor

In this paper, a novel method of producing bi-metallic alloy nanoparticles at low temperatures using hydrogen bombardment of thin films, deposited on glass substrates, is introduced. Optical and morphological characteristics of the nanoparticles were extensively studied for various conditions of plasma treatment, such as plasma power density, temperature, duration of hydrogen bombardment, thick...