Title:
METHOD FOR SYNTHESIZING ALUMINUM NITRIDE AND ALUMINUM NITRIDE-BASED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/111334
Kind Code:
A1
Abstract:
The present invention relates to a method for synthesizing aluminum nitride at a low temperature and, more specifically, to a method for synthesizing aluminum nitride, comprising: preparing a porous body by heating and debinding, under a nitrogen gas atmosphere at atmospheric pressure, feedstock granules or a molded product prepared therefrom, the feedstock granules being prepared by pressure mixing a mixture powder, which comprises 0.5-8 wt% of a zinc powder, 0.01-2 wt% of a magnesium powder, 0.01-1 wt% of a silicon powder, 0.01-1 wt% of a copper powder and the balance of an aluminum powder, with an organic binder; and causing a rapid nitridation reaction of an aluminum powder. In addition, the present invention relates to a method for synthesizing a composite phase material having a high aluminum nitride content by further adding, to the aluminum mixture powder, one or more inorganic materials selected from the group consisting of lithium, calcium, phosphorus, gadolinium, iron, nickel, cobalt, manganese, silver, chromium, zirconium, strontium, molybdenum, tungsten and an alloy thereof, or Al2O3, SiO2, ZrO2, CaO, Y2O3, TiC, TiN, B4C, SiC, Si3N4, TiB2, h-BN, c-BN, diamond, a carbon nanotube and graphene, and sintering the same under the nitrogen gas atmosphere.
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Inventors:
HAN KWAN HEE (KR)
KIM JU HYUN (KR)
KIM JU HYUN (KR)
Application Number:
PCT/KR2016/013892
Publication Date:
June 29, 2017
Filing Date:
November 29, 2016
Export Citation:
Assignee:
UNIV YEUNGNAM RES COOPERATION FOUNDATION (KR)
International Classes:
C01B21/072; B22F1/10; B22F9/22; B22F1/103
Foreign References:
| KR100303122B1 | 2002-04-17 | |||
| CN1275527A | 2000-12-06 | |||
| JPH10185440A | 1998-07-14 | |||
| JPH09183662A | 1997-07-15 | |||
| KR101659700B1 | 2016-09-23 |
Other References:
KIM, JOO HYUN: "Synthesis on Aluminum Nitride-(Ni-Al) Intermetallic Compound Composites by Combustion Reaction", GRADUATE SCHOOL OF YEUNGNAM UNIVERSITY, THESIS PAPER OF MATERIALS SCIENCE & ENGINEERING, February 2015 (2015-02-01), pages 1 - 84
Attorney, Agent or Firm:
TAEBAEK INTELLECTUAL PROPERTY LAW FIRM (KR)
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