Synthesis of Ultrafine Aluminium Nitride Powder by a Low-temperature Carbothermal Reduction Process

Journal of Inorganic Materials

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Synthesis of Ultrafine Aluminium Nitride Powder by a Low-temperature Carbothermal Reduction Process

QIN Ming-Li¹; QU Xuan-Hui^1,2; LIN Jian-Liang¹; XIAO Ping-An¹; ZHU Bao-Jun¹

1. The State Key Laboratory for Powder Metallurgy; Central South University; Changsha 410083; China; 2. School of Materials Science and Engineering; University of Science and Technology Beihing, Beijing 100083, China

Received:2001-09-10 Revised:2001-12-03 Published:2002-09-20 Online:2002-09-20

Abstract

Abstract: A new precursor containing a homogenous mixture of noncrystalline Al₂O₃and carbon was prepared with aluminium nitrate, glucose and urea as raw materials, by a low-temperature combustion process. The nitridation of this precursor shows that it has a high reactivity and nitridation reaction proceeds rapidly. AlN powders with ultrafine particle sizes (～100nm) can beobtained at 1550℃ within 90min.

Key words: combustion synthesis, precursor, carbothermal reduction, aluminium nitride

CLC Number:

TF123

QIN Ming-Li,QU Xuan-Hui,LIN Jian-Liang,XIAO Ping-An,ZHU Bao-Jun. Synthesis of Ultrafine Aluminium Nitride Powder by a Low-temperature Carbothermal Reduction Process[J]. Journal of Inorganic Materials.

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Synthesis of Ultrafine Aluminium Nitride Powder by a Low-temperature Carbothermal Reduction Process

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