Synthesis of fine AlN powder by vapour-phase reaction

Kimura, Ikuo; Hotta, Noriyasu; Nukui, Hideki; Saito, Natsukaze; Yasukawa, Saburo

doi:10.1007/bf01729918

Cited by 43 publications

(11 citation statements)

References 2 publications

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“…질화알루미늄(AlN)을 합성하는 방법으로는 열탄소 환 원 질화법(Cabothermal Reduction Method), 4,5) 직접 질화 법(Direct Nitridation Method), 6) 부유 질화법(Floating Nitridation), 7) 기상 반응법(Vapor Phase Nitridation), 8) 플라즈 마 반응법(Plasma Nitridation), 9) 자전 고온 반응 합성법(SHS, Self-propagating high temperature synthesis) 10…”

Section: -3)unclassified

Preparation of AlN Powder Using Mesoporous Alumina and Its Characterization

Kim¹,

Lee²,

Shin³

et al. 2014

Journal of the Korean Ceramic Society

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Aluminum nitride was synthesized using a carbothermal method from mesoporous alumina having a high surface area (> 1,000 m 2 /g) as an aluminum source and CNTs (carbon nano tubes) as a carbon source. In this case the mesoporous alumina was used as the starting material instead of α-Al 2 O 3 with the expectation that the mesopores in mesoporous alumina act as channels for N 2 gas and elimination of CO generated as by-product. It is also expected that the synthetic temperature should be lower compared to the use of α-Al 2 O 3 as a starting material due to its high surface area. The crystallinity of the produced aluminum nitride was studied by XRD and FT-IR, and the microstructure was investigated by FE-SEM. Also the purity of the aluminum nitride was analyzed through N/O determinator and ICP analysis.

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Section: -3)unclassified

Preparation of AlN Powder Using Mesoporous Alumina and Its Characterization

Kim¹,

Lee²,

Shin³

et al. 2014

Journal of the Korean Ceramic Society

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“…The production rate of AIN for this process is much higher in comparison with either carbothermal reduction or direct nitridation. 21 The process flowchart for vapour phase synthesis of AIN is shown in Fig. 8 and the reaction vessel is shown in Fig.…”

Section: Vapour Phase Synthesismentioning

confidence: 99%

Aluminium nitride: review of synthesis methods

Selvaduray¹,

Sheet²

1993

Materials Science and Technology

154

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Several technologies have been reportedfor the synthesis of AIN. These are reviewed and described in detail. The processes are classified according to the principle of synthesis, and the AIN product characteristics for each method of synthesis are identified. Only two of the methods reported, direct nitridation and carbo thermal reduction, are currently used industrially. Due to the requirement for higher quality AIN powders, several other methods are being developed. The level of development, the principle of synthesis, the raw materials used, the reaction products, and the powder characteristics of the synthesis methods are discussed. Where appropriate, environmental or safety concerns are identified. Processfiowchartsfor each of the technologies were developed on the basis of information available.MST/1794

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“…In addition to these two routes, the gas-phase reaction of aluminium chloride and ammonia has been used for the preparation of aluminium nitride, in recent years [5]. All these synthesis routes are high-temperature processes, and the powders obtained have large crystallite sizes and hence low sinterability.…”

Section: Introductionmentioning

confidence: 99%

Aluminium nitride ceramics prepared by a pyrolytic route

Distler

Rüssel

1992

J Mater Sci

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Metallic aluminium was dissolved in a fluid organic electrolyte. Drying of the viscous solution obtained, by simply evaporating the organic compounds, resulted in a relatively coarse powder with a broad particle size distribution. By contrast, a very fine-grained powder with a mean particle size in the submicrometre range, was obtained by hot-paraffin drying of a precursor solution of controlled viscosity. Sintering experiments with hot-paraffin dried powders calcined in ammonia, showed that these powders can be densified at 1820 ~ without sintering additives, to densities of > 99% theoretical density.

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Synthesis of fine AlN powder by vapour-phase reaction

Cited by 43 publications

References 2 publications

Preparation of AlN Powder Using Mesoporous Alumina and Its Characterization

Preparation of AlN Powder Using Mesoporous Alumina and Its Characterization

Aluminium nitride: review of synthesis methods

Aluminium nitride ceramics prepared by a pyrolytic route

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