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Patent Searching and Data


Title:
PRODUCTION OF RARE-EARTH ELEMENT-IRON-GROUP METAL ALLOY TARGET
Document Type and Number:
Japanese Patent JPH04191365
Kind Code:
A
Abstract:

PURPOSE: To produce a target having a low content of oxygen by hydrogenating and crushing the ingot of a rare-earth element/iron-group metal alloy in the eutectic structure range, mixing a deficiency of the iron-group metal powder for the desired component and sintering the mixture under pressure.

CONSTITUTION: The ingot of a rare-earth element-iron-group metal alloy is prepared, hydrogenated and crushed. The obtained rare-earth element/iron-group metal powder and a deficiency of the iron-group metal powder for the desired component are mixed. The mixed powder is sintered under pressure in the temp. range where the liq. phase is not developed in a vacuum or in an inert gas atmosphere to form a target. The temps. in the sintering under pressure are controlled to those ranging from the temp. where the liq. phase is developed to the liq. phase developing temp. minus 100°C. A rare-earth element/iron-group metal alloy target having a low content of oxygen is obtained in this way.


Inventors:
MATSUMOTO SHUNICHIRO
Application Number:
JP14691090A
Publication Date:
July 09, 1992
Filing Date:
June 05, 1990
Export Citation:
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Assignee:
HITACHI METALS LTD
International Classes:
B22F9/04; B22F3/14; C22C1/04; C22C38/00; C23C14/34; (IPC1-7): B22F3/14; B22F9/04; C22C1/04; C22C38/00; C23C14/34
Attorney, Agent or Firm:
Oba Mitsuru