Title:
BORON NITRIDE NOZZLE AND BORON NITRIDE CRUCIBLE FOR PRODUCTION OF NEODYMIUM ALLOY, AND NEODYMIUM ALLOY PRODUCTION METHOD USING NOZZLE OR CRUCIBLE
Document Type and Number:
WIPO Patent Application WO/2017/209063
Kind Code:
A1
Abstract:
The present invention provides a nozzle or crucible for use in neodymium alloy production, which can have a long service life when being used for producing a neodymium alloy, and which enables efficient and stable production of a neodymium alloy. This nozzle or crucible for use in neodymium alloy production comprises a sintered body containing boron nitride, and is characterized by including boron nitride at a proportion of 50.0-97.5 wt% but not including an oxide or a nitride of Al, Zr, Mg, Si, or Hf with the exception of unavoidable impurities.
Inventors:
SHIOTSUKI HIROYUKI (JP)
NONAKA SHUHEI (JP)
NISHIKAWA MASATO (JP)
NAGATA TAKAHARU (JP)
FUSHII YASUHITO (JP)
NONAKA SHUHEI (JP)
NISHIKAWA MASATO (JP)
NAGATA TAKAHARU (JP)
FUSHII YASUHITO (JP)
Application Number:
PCT/JP2017/019949
Publication Date:
December 07, 2017
Filing Date:
May 29, 2017
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
B22D11/06; B22D11/00; B22D41/54; C04B35/583
Foreign References:
| US5201359A | 1993-04-13 | |||
| US4741464A | 1988-05-03 | |||
| JP2002336941A | 2002-11-26 | |||
| JPH01246178A | 1989-10-02 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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