2004
DOI: 10.1016/j.jeurceramsoc.2003.12.028
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Low temperature synthesis of AlN by addition of various Li-salts

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Cited by 26 publications
(24 citation statements)
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“…Comparatively, the CRN process is a better choice for industry production, since it results in AlN powders with better properties such as high purity, facile sinterability and resistance against humidity [12]. To date, a lot of researchers have devoted themselves to improving the quality of the AlN powders synthesized by the CRN method [13][14][15][16][17][18]. Unfortunately, most of them just aimed at preparing fine or ultrafine AlN powders in order to meet the requirements of sintering AlN ceramics.…”
Section: Introductionmentioning
confidence: 99%
“…Comparatively, the CRN process is a better choice for industry production, since it results in AlN powders with better properties such as high purity, facile sinterability and resistance against humidity [12]. To date, a lot of researchers have devoted themselves to improving the quality of the AlN powders synthesized by the CRN method [13][14][15][16][17][18]. Unfortunately, most of them just aimed at preparing fine or ultrafine AlN powders in order to meet the requirements of sintering AlN ceramics.…”
Section: Introductionmentioning
confidence: 99%
“…There are two primary commercial techniques reported for the production of AlN powders: the direct nitridation of aluminium or aluminium salts by nitrogen or ammonia [6][7][8][9][10][11][12] and the carbothermal reduction and nitridation of alumina [13][14][15][16]. The later one involves the reduction of Al 2 O 3 or Al(OH) 3 with carbon and simultaneous nitridation by nitrogen to AlN powder at temperatures around 1700-1900 • C [11].…”
Section: Introductionmentioning
confidence: 99%
“…A calcinação não deve ser realizada acima de 800 ºC devido ao problema de oxidação do pó de AlN [27]. Apesar da temperatura de fusão do Al ser ao redor 660 ºC, o processo ND é realizado em temperaturas tão altas quanto 1150 ºC [27,29]. O pó de Al é fundido em altas temperaturas e, então, injetase gás nitrogênio ou amônia para promover a nitretação (2Al+N 2 g2AlN).…”
Section: Síntese E Hidrólise Do Nitreto De Alumíniounclassified
“…A Tabela II mostra algumas características técnicas dos pós de AlN produzidos pelos processos RCN e ND. Os custos de produção do pó de AlN são dispendiosos devido às elevadas temperaturas de síntese [26,28] [29]. Dependendo da temperatura de síntese, os dois processos (RCN ou ND) podem resultar em pós de AlN com significativo residual de segundas fases oriundas das adições de agentes catalizadores.…”
Section: Síntese E Hidrólise Do Nitreto De Alumíniounclassified