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http://dx.doi.org/10.6111/JKCGCT.2017.27.5.223

Synthesis and characterization of AlN nanopowder by the microwave assisted carbothermal reduction and nitridation (CRN)  

Chun, Seung-Yeop (Korea Institute of Ceramic Engineering and Technology)
Chun, Myoung-Pyo (Korea Institute of Ceramic Engineering and Technology)
Abstract
Aluminum nitride (AlN) powder was successfully synthesized at low temperature via carbothermal reduction and nitridation (CRN) assisted by microwave heating. The synthesis processes of AlN powder were investigated with X-ray diffraction, FE-SEM, FT-IR and TGA/DSC. Aluminum nitrate was used as an oxidizer and aluminum source, urea as fuel, and glucose as carbon source. These starting materials were mixed with D.I water and reacted in a flask at $100^{\circ}C$ for 20 minutes. After the reaction was finished, black foamy intermediate product was formed, which was considered to be an amorphous $Al_2O_3$ particles through intermediate product obtained by solution combustion synthesis (SCS) at the results of X-ray diffraction patterns and FT-IR. This intermediate product was nitridated at temperatures of $1300^{\circ}C$ and $1400^{\circ}C$ in $N_2$ atmosphere by a microwave heating furnace and then decarbonated at $600^{\circ}C$ for 2 hours in air. It should be noticed from FE-SEM images that as nitridated particles, identified as AlN from X-ray diffraction patterns, are covered with carbon residues. After decarbonating the nitridated powders, the spherical pure AlN powders were obtained without alumina and their particle sizes were dependent on the nitridating temperature with high temperature of $1400^{\circ}C$ giving large particles of around 70~100 nm.
Keywords
AlN powders; Urea; Microwave heating; Carbothermal combustion;
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1 G.A. Slack, R.A. Tanzilli, R.O. Pohl and J.W. Vandersande, "The intrinsic thermal conductivity of AIN", J. Phys. Chem. Solids 48 (1987) 641.   DOI
2 L.M. Sheppard, "Aluminum nitride-a versatile but challenging material", J. Am. Ceram. Soc. 69 (1990)1801.
3 Y. Kameshima, "Mechanochemical effect on low temperature synthesis of AlN by direct nitridation method", Solid State Ion. 172 (2004) 185.   DOI
4 J. Wagner, C. Mitterer, M. Penoy, C. Michotte, W. Wallgram and M. Kathrein, "The effect of deposition temperature on microstructure and properties of thermal CVD TiN coatings", Int. J. Refract. Metals Hard Mater. 26 (2008) 120.   DOI
5 A. Chu, M. Qin, Rafi-ud-din, B. Jia, H. Lu, X. Qu and O. Tatsuki, "Citric acid-assisted combustion-carbothermal synthesis of well-distributed highly sinterable AlN nanopowders", J. Am. Ceram. Soc. 95 (2012) 2510.   DOI
6 H. Wu, M. Qin, A. Chu, Q. Wan, Z. Cao, Y. Liu, X. Qu and A.A. Volinsky, "AlN powder synthesis by sodium fluoride-assisted carbothermal combustion", Ceram. Int. 40 (2014) 14447.   DOI
7 A.L. Molisani and H.N. Yoshimura, "Low-temperature synthesis of AlN powder with multicomponent additive systems by carbothermal reduction-nitridation method", Mater. Res. Bull. 45 (2010) 733.   DOI
8 M. Qin, X. Du, J. Wang, I.S. Humail and X. Qu, "Influence of carbon on the synthesis of AlN powder from combustion synthesis precursors", European Ceramic Society 29 (2009) 795.   DOI
9 A. Chu, M. Qin, D. Rafi ud, B. Jia, H. Lu, X. He and X. Qu, "Effect of aluminum source on the synthesis of AlN powders from combustion synthesis precursors", Mater. Res. Bull. 47 (2012) 2475.   DOI
10 Amit Sharma, O.P. Modi and Gourav K. Gupta, "Combustion synthesis of nanocrystalline $Al_2O_3$ powder using aluminium nitrate and urea as reactants-influence of reactant composition", Adv. Appl. Sci. Res. 3 (2012) 3819.
11 M. Bhattacharya and T. Basak, "A review on the susceptor assisted microwave processing of materials", Energy 97 (2016) 306.   DOI
12 J.-M. Lee, B.-I. Kim, J.-H. Lee, K.-H. Kim and M.-P. Chun, "Low temperature synthesis of AlN nanopowders by the microwave assisted combustion method", J. Ceram. Process. Res. 14 (2013) 707.
13 V.D. Zhuravlev, V.G. Bamburov, A.R. Beketov, L.A. Perelyaeva, I.V. Baklanova, O.V. Sivtsova, V.G. Vasil'ev, E.V. Vladimirova, V.G. Shevchenko and I.G. Grigorov, "Solution combustion synthesis of ${\alpha}-Al_2O_3$ using urea", Ceram. Int. 39 (2013) 1379   DOI
14 H.K. Chen and C.I. Lin, "Mechanism of the reduction of carbon/alumina powder mixture in a flowing nitrogen stream", J. Mater. Sci. 29 (1994) 1352.   DOI
15 M. Salehi and E. Arabsarhangi, "Solution combustion synthesis using Schiff-base aluminum complex without fuel and optical property investigations of alumina nanoparticles", Int. Nano Lett. 5 (2015) 141.   DOI
16 Y. Sun, J.Y. Li, Y. Tan and L. Zhang, "Fabrication of aluminum nitride (AlN) hollow fibers by carbothermal reduction and nitridation of electrospun precursor fibers", J. Alloys Compd. 471 (2009) 400.   DOI
17 D.T. Mylinh, D.-H. Yoon and C.-Y. Kim, "Aluminum nitride formation from aluminum oxide/phenol resin solid-gel mixture by carbothermal reduction nitridation method", Arch. Metall. Mater. 60 (2015) 1551.   DOI