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Title: Method of forming magnetostrictive rods from rare earth-iron alloys

Abstract

Rods of magnetostrictive alloys of iron with rare earth elements are formed by flowing a body of rare earth-iron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten rare-earth-iron alloy into a hollow mold tube of refractory material positioned with its lower end portion within the molten body by means of a pressure differential between the chamber and mold tube and maintaining a portion of the molten alloy in the crucible extending to a level above the lower end of the mold tube so that solid particles of higher melting impurities present in the alloy collect at the surface of the molten body and remain within the crucible as the rod is formed in the mold tube. 5 figs.

Inventors:
Issue Date:
OSTI Identifier:
7249440
Patent Number(s):
4609402
Application Number:
PPN: US 6-792341
Assignee:
Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Resource Relation:
Patent File Date: 28 Oct 1985
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON ALLOYS; CASTING; RARE EARTH ALLOYS; RODS; CASTING MOLDS; LIQUID METALS; MAGNETOSTRICTION; ALLOYS; ELEMENTS; FABRICATION; FLUIDS; LIQUIDS; MAGNETIC PROPERTIES; METALS; PHYSICAL PROPERTIES; 360101* - Metals & Alloys- Preparation & Fabrication

Citation Formats

McMasters, O D. Method of forming magnetostrictive rods from rare earth-iron alloys. United States: N. p., 1986. Web.
McMasters, O D. Method of forming magnetostrictive rods from rare earth-iron alloys. United States.
McMasters, O D. Tue . "Method of forming magnetostrictive rods from rare earth-iron alloys". United States.
@article{osti_7249440,
title = {Method of forming magnetostrictive rods from rare earth-iron alloys},
author = {McMasters, O D},
abstractNote = {Rods of magnetostrictive alloys of iron with rare earth elements are formed by flowing a body of rare earth-iron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten rare-earth-iron alloy into a hollow mold tube of refractory material positioned with its lower end portion within the molten body by means of a pressure differential between the chamber and mold tube and maintaining a portion of the molten alloy in the crucible extending to a level above the lower end of the mold tube so that solid particles of higher melting impurities present in the alloy collect at the surface of the molten body and remain within the crucible as the rod is formed in the mold tube. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {9}
}