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Journal of Materials Science

, Volume 31, Issue 13, pp 3559–3565 | Cite as

Carbothermal reduction and nitridation of aluminium hydroxide

  • Wen-Hong Tseng
  • Chun-I Lin
Papers

Abstract

Carbothermal reduction and nitridation of aluminium hydroxide was investigated by weight-loss measurement and X-ray diffraction. Experimental results indicated that aluminium hydroxide was first dehydrated to aluminium oxide and then reduced and nitrided to aluminium nitride. Aluminium oxynitride and Al2O were found to be intermediate products. The reaction rate was found to be increased by increasing the nitrogen flow rate, the molar ratio of C/Al(OH)3, or reaction temperature. The rate was also found to be increased by decreasing the sample size, the grain sizes of carbon or aluminium hydroxide or initial bulk density. Empirical rate expressions of the conversion of Al(OH)3 and carbon, as well as the yield of AIN, were also determined.

Keywords

Aluminium Al2O Nitride Reaction Temperature Bulk Density 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • Wen-Hong Tseng
    • 1
  • Chun-I Lin
    • 1
  1. 1.Department of Chemical EngineeringNational Taiwan Institute of TechnologyTaipeiTaiwan

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