Masters Theses
Abstract
"Since different mechanical properties of metals result from different grain size became known, the metallurgists have been interested in finding out the true nature of the grain boundaries. Consequently, several different theories concerning the mechanism of recrystallization, grain growth, and the structure of metals were advanced and studied. These threw much light on the difference of properties between polycrystalline metals and single crystals of the same metals. The single crystals of metals were studied because they enabled the investigator to determine the important points of metallic behavior. The first work on single crystals was rather obscure and limited to isolated, though significant, observations on native metals and on large grains which were removed from severely coarsened metal parts. The aim of the present research was to investigate the possibility of preparing the single crystals from copper powder by employing the powder metallurgy technique. However, the principal differences between cast and sintered metals are the relative weakness of the adhesive forces between particles and the presence of pores between them in the case of powder compacts. The factors controlling grain growth and grain size for powder compacts depend not only upon the amount of deformation, temperature and time of annealing, but also depend upon the amount of compressing pressure and the sintering conditions of powder compacts"--Introduction, page 1.
Advisor(s)
Eppelsheimer, Daniel S., 1909-1988
Department(s)
Materials Science and Engineering
Degree Name
M.S. in Metallurgical Engineering
Publisher
Missouri School of Mines and Metallurgy
Publication Date
1949
Pagination
v, 61 pages
Note about bibliography
Includes bibliographical references (pages 74-76).
Rights
© 1949 Wei-Kung Chang, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Copper -- MetallurgyCrystalsPowder metallurgy
Thesis Number
T 853
Print OCLC #
5977916
Electronic OCLC #
741967049
Recommended Citation
Chang, Wei-Kung, "Preparation of copper single crystals by means of powder metallurgy methods" (1949). Masters Theses. 4967.
https://scholarsmine.mst.edu/masters_theses/4967