Kinetics of microwave synthesis of AlN by carbothermal-reduction-nitridation at low temperature

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Aluminum nitride (AlN) was synthesized at 1000-1400°C from a mixture of alumina and carbon powders using 2.45 GHz microwaves in a N2 atmosphere. High nitridation ratios (>0.90) were obtained in the temperature range 1200-1400°C. The apparent activation energy of the carbothermal reduction and nitridation (CRN) reaction using 2.45 GHz microwave irradiation was calculated from the nitridation ratio. The value obtained, 79.9 kJ/mol, is 11% of the energy reported for conventional synthesis using α-Al2O3 as the raw material. This result indicates that 2.45 GHz microwave irradiation could promote the kinetics of the CRN reaction, and AlN could be effectively synthesized at low temperature.

本文言語English
ページ(範囲)4905-4910
ページ数6
ジャーナルJournal of the American Ceramic Society
101
11
DOI
出版ステータスPublished - 2018 11

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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