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Comparison of magnetic properties of natural mischmetal and synthetic mischmetal alloyed with cobalt, copper, and magnesium.

Authors
Walkiewicz-JW; Morrice-E; Wong-MM
Source
IEEE Trans Magn 1983 Sep; Mag-19(5):2053-2055
NIOSHTIC No.
10003198
Abstract
One of the objectives of the Bureau of Mines is to develop substitutes for scarce materials. Alloys containing mischmetal, lanthanum, praseodymium, neodymium, cobalt, copper, and magnesium were evaluated for use in permanent magnets in lieu of Sm-Co alloys. Magnets were fabricated by powder metallurgy techniques that consisted of arc melting the metals, crushing and grinding the resultant alloy, aligning and compacting the powder, and sintering the green compacts. A cerium-free synthetic mischmetal consisting of La-Pr-Nd was developed that had substantially better magnetic properties than natural mischmetal when alloyed with cobalt, copper, and magnesium.
Keywords
Metals; Metallurgical-processes; Metallic-compounds; Metal-compounds; Magnetic-properties
CODEN
IEMGAQ
CAS No.
7440-48-4; 7440-50-8; 7439-95-4
Publication Date
19830901
Document Type
OP; Journal Article
Fiscal Year
1983
NTIS Accession No.
NTIS Price
Identifying No.
OP 85-83
Issue of Publication
5
ISSN
0018-9464
NIOSH Division
RERC
Source Name
IEEE Transactions on Magnetics
State
NV
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