Synthesis of alloys with controlled phase structure
Abstract
A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures .apprxeq.300 C. and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures .apprxeq.300 C. thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds.
- Inventors:
-
- Livermore, CA
- Lafayette, CA
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 872255
- Patent Number(s):
- 5895518
- Application Number:
- 08/636,369
- Assignee:
- Sandia Corporation (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
F - MECHANICAL ENGINEERING F17 - STORING OR DISTRIBUTING GASES OR LIQUIDS F17C - VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- synthesis; alloys; controlled; phase; structure; method; preparing; useful; engineering; hydrogen; storage; applications; novel; avoids; melting; constituents; employing; vapor; transport; atmosphere; active; metal; constituent; pressure; temperatures; apprxeq; 300; subsequent; condensation; reaction; substrate; alloy; forming; preferably; single; preferred; material; powder; diffusion; magnesium; therewith; completed; reasonable; time; avoiding; undesirable; effects; sintering; local; compositional; inhomogeneities; segregation; formation; unwanted; phases; intermetallic; compounds; controlled phase; active metal; substrate material; vapor pressure; intermetallic compound; hydrogen storage; single phase; metal powder; novel method; hydrogen atmosphere; storage applications; phase alloy; metal constituent; vapor transport; intermetallic compounds; alloys useful; phase alloys; phase structure; metallic compound; controlled ph; /75/148/420/
Citation Formats
Guthrie, Stephen Everett, Thomas, George John, Bauer, Walter, and Yang, Nancy Yuan Chi. Synthesis of alloys with controlled phase structure. United States: N. p., 1999.
Web.
Guthrie, Stephen Everett, Thomas, George John, Bauer, Walter, & Yang, Nancy Yuan Chi. Synthesis of alloys with controlled phase structure. United States.
Guthrie, Stephen Everett, Thomas, George John, Bauer, Walter, and Yang, Nancy Yuan Chi. Tue .
"Synthesis of alloys with controlled phase structure". United States. https://www.osti.gov/servlets/purl/872255.
@article{osti_872255,
title = {Synthesis of alloys with controlled phase structure},
author = {Guthrie, Stephen Everett and Thomas, George John and Bauer, Walter and Yang, Nancy Yuan Chi},
abstractNote = {A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures .apprxeq.300 C. and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures .apprxeq.300 C. thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {4}
}