skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: THE INFLUENCE OF GRAVITY UPON THE SHRINKAGE OF COPPER POWDER COMPACTS

Abstract

The possibility that gravity forces might play a role in the shrinkage behavior of compacts was investigated. Compacts were fabricated from irregularly shaped, electrolytic copper powder. The compacts were sintered at a temperature of 925 deg C generally for 1 hr. The samples were supported in various ways during sintering. The average radial shrinkage of the samples was of the order of 6%, the average axial shrinkage of the order of 5% for compacts pressed both from the plus or minus 325 and the -325 mesh fractions of powder. In all cases, the part of the compact which had the highest axial compressive force due to gravity during sintering exhibited less radial shrinkage than the part of the compact which had lower axial forces. The samples for which the top and bettom axial shrinkages were measured showed greater axial shrinkage in the bottom half which had the highest axial compressive force due to gravity during sintering. (M.C.G.)

Authors:
; ; ;
Publication Date:
Research Org.:
Rensselaer Polytechnic Inst., Troy, N.Y.
OSTI Identifier:
4802718
Report Number(s):
TID-15138
NSA Number:
NSA-16-013516
DOE Contract Number:  
AT(30-1)-2408
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-62
Country of Publication:
United States
Language:
English
Subject:
METALS, CERAMICS, AND OTHER MATERIALS; COMPACTS; COPPER; DEFORMATION; ELECTROLYSIS; HIGH TEMPERATURE; POWDERS; SHRINKAGE; SINTERING; VOLUME

Citation Formats

Lenel, F V, Hausner, H H, Roman, O V, and Ansel, G S. THE INFLUENCE OF GRAVITY UPON THE SHRINKAGE OF COPPER POWDER COMPACTS. United States: N. p., 1961. Web.
Lenel, F V, Hausner, H H, Roman, O V, & Ansel, G S. THE INFLUENCE OF GRAVITY UPON THE SHRINKAGE OF COPPER POWDER COMPACTS. United States.
Lenel, F V, Hausner, H H, Roman, O V, and Ansel, G S. Sun . "THE INFLUENCE OF GRAVITY UPON THE SHRINKAGE OF COPPER POWDER COMPACTS". United States.
@article{osti_4802718,
title = {THE INFLUENCE OF GRAVITY UPON THE SHRINKAGE OF COPPER POWDER COMPACTS},
author = {Lenel, F V and Hausner, H H and Roman, O V and Ansel, G S},
abstractNote = {The possibility that gravity forces might play a role in the shrinkage behavior of compacts was investigated. Compacts were fabricated from irregularly shaped, electrolytic copper powder. The compacts were sintered at a temperature of 925 deg C generally for 1 hr. The samples were supported in various ways during sintering. The average radial shrinkage of the samples was of the order of 6%, the average axial shrinkage of the order of 5% for compacts pressed both from the plus or minus 325 and the -325 mesh fractions of powder. In all cases, the part of the compact which had the highest axial compressive force due to gravity during sintering exhibited less radial shrinkage than the part of the compact which had lower axial forces. The samples for which the top and bettom axial shrinkages were measured showed greater axial shrinkage in the bottom half which had the highest axial compressive force due to gravity during sintering. (M.C.G.)},
doi = {},
url = {https://www.osti.gov/biblio/4802718}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1961},
month = {1}
}

Technical Report:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that may hold this item. Keep in mind that many technical reports are not cataloged in WorldCat.

Save / Share: