发明名称 |
Process for producing aluminum nitride |
摘要 |
<p>A process for producing aluminum nitride includes a nitrogen occluding step and a nitriding step. In the nitrogen occluding step, nitrogen is occluded in an aluminum powder having an average particle diameter of from 10 to 200 mu m by holding the aluminum powder in a nitrogen gas atmosphere of 460 DEG C or more for 10 minutes or more. In the nitriding step, the aluminum powder with nitrogen occluded therein is nitrided by developing a nitriding reaction at a temperature of from 500 to 1,000 DEG C while holding the aluminum powder in a nitrogen atmosphere whose nitrogen gas pressure falls in a range of from 80 to 300 kPa. Thus, aluminum nitride, in which aluminum is inhibited from remaining and which has small particle diameters, is calcined at a lower temperature and is actively used to make high-quality substrates, can be produced at a lower temperature with a high yield.</p> |
申请公布号 |
EP1394107(A1) |
申请公布日期 |
2004.03.03 |
申请号 |
EP20020017225 |
申请日期 |
2002.07.31 |
申请人 |
IBARAGI LABORATORY CO., LTD. |
发明人 |
MIURA, HIROHISA;MATUNAGA, HIROFUMI |
分类号 |
C01B21/072;(IPC1-7):C01B21/072 |
主分类号 |
C01B21/072 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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