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Title: Microalloying of transition metal silicides by mechanical activation and field-activated reaction

Abstract

Alloys of transition metal suicides that contain one or more alloying elements are fabricated by a two-stage process involving mechanical activation as the first stage and densification and field-activated reaction as the second stage. Mechanical activation, preferably performed by high-energy planetary milling, results in the incorporation of atoms of the alloying element(s) into the crystal lattice of the transition metal, while the densification and field-activated reaction, preferably performed by spark plasma sintering, result in the formation of the alloyed transition metal silicide. Among the many advantages of the process are its ability to accommodate materials that are incompatible in other alloying methods.

Inventors:
 [1];  [1];  [2]
  1. Davis, CA
  2. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
935566
Patent Number(s):
6613276
Application Number:
10/124,633
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Munir, Zuhair A, Woolman, Joseph N, and Petrovic, John J. Microalloying of transition metal silicides by mechanical activation and field-activated reaction. United States: N. p., 2003. Web.
Munir, Zuhair A, Woolman, Joseph N, & Petrovic, John J. Microalloying of transition metal silicides by mechanical activation and field-activated reaction. United States.
Munir, Zuhair A, Woolman, Joseph N, and Petrovic, John J. Tue . "Microalloying of transition metal silicides by mechanical activation and field-activated reaction". United States. https://www.osti.gov/servlets/purl/935566.
@article{osti_935566,
title = {Microalloying of transition metal silicides by mechanical activation and field-activated reaction},
author = {Munir, Zuhair A and Woolman, Joseph N and Petrovic, John J},
abstractNote = {Alloys of transition metal suicides that contain one or more alloying elements are fabricated by a two-stage process involving mechanical activation as the first stage and densification and field-activated reaction as the second stage. Mechanical activation, preferably performed by high-energy planetary milling, results in the incorporation of atoms of the alloying element(s) into the crystal lattice of the transition metal, while the densification and field-activated reaction, preferably performed by spark plasma sintering, result in the formation of the alloyed transition metal silicide. Among the many advantages of the process are its ability to accommodate materials that are incompatible in other alloying methods.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {9}
}

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Works referenced in this record:

Plastic deformation of MoSi2 single crystals
journal, October 1995


Appraisal of other silicides as structural materials
journal, June 1992


Densification of Al 2 O 3 Powder Using Spark Plasma Sintering
journal, April 2000


Plasticity enhancement mechanisms in MoSi2
journal, March 1999


High temperature deformation of MoSi2 single crystals with the C11b structure
journal, June 1990


Simultaneous synthesis and densification of niobium silicide/niobium composites
journal, August 2001


BALL MILLING OF SYSTEMS WITH POSITIVE HEAT OF MIXING: EFFECT OF TEMPERATURE IN Ag-Cu
journal, July 1997


Effect of carbon addition on the creep of molybdenum disilicide composites
journal, February 1995


Synthesis of dense nanometric MoSi 2 through mechanical and field activation
journal, May 2001


On the slip systems in MoSi2
journal, November 1992


High temperature plastic anisotropy in MoSi2 single crystals
journal, February 1995


Microalloying for ductility in molybdenum disilicide
journal, March 1999