Radiation damage in nickel(3) aluminum

The ordered intermetallic Ni$\sb3$Al was used in two series of experiments that were designed to elucidate both fundamental and practical aspects of radiation damage. The first is a Transmission Electron Microscopy investigation of cascade damage under heavy ion irradiation; the second is a radiation induced segregation study. For the first topic, the cascade generated damage structure (namely, disordered zones and dislocation loops) were examined as a function of ion mass (Ar$\sp+$, Kr$\sp+$, Xe$\sp+$), ion energy (30 and 50 keV), and irradiation temperature (30, 300, 350 and 400K). At room temperature and at constant ion energy, the average size of the disordered zones increases with increasing ion mass. At room temperature and at constant ion mass, the zone size increases with increasing energy; but only for the heavier Xe+ ions. At 30K, for the same ion mass and ion energy, the size of the disordered zones was smaller than at room temperature. When the irradiation temperature was increased to 400K, the disordered zone size was also found to be smaller than that obtained from the room temperature irradiations. The zones were found to increase in size with increasing ion mass, similar to the trend observed with the room temperature irradiation.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Materials Science and Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Bui, Tho Xuan

Contributors dc:contributor

• Robertson, Ian M.

• Physics, Condensed Matter
• Engineering, Metallurgy
• Engineering, Materials Science

Statement dc:rights

• Copyright 1995 Bui, Tho Xuan

Language dc:language

eng

Identifier

AAI9543543
(UMI)AAI9543543

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22759