[2] [2] SHAN Y C, XU J H, SUN X N, et al. Preparation of AlN powder of low oxygen content via carbothermal reduction and nitridation by active gas exchange technique［J］. Ceramics International, 2020, 46(13): 21182-21189.

[3] [3] VIRKAR A V, JACKSON T B, CUTLER R A. Thermodynamic and kinetic effects of oxygen removal on the thermal conductivity of aluminum nitride［J］. Journal of the American Ceramic Society, 1989, 72(11): 2031-2042.

[4] [4] YAN H W, CANNON W R, SHANEFIELD D J. Evolution of carbon during burnout and sintering of tape-cast aluminum nitride［J］. Journal of the American Ceramic Society, 1993, 76(1): 166-172.

[5] [5] HE Q, QIN M L, HUANG M, et al. Synthesis of highly sinterable AlN nanopowders through sol-gel route by reduction-nitridation in ammonia［J］. Ceramics International, 2019, 45(12): 14568-14575.

[6] [6] KIM S Y, YEO D H, SHIN H S, et al. Effects of debinding process on properties of sintered AlN substrate［J］. Ceramics International, 2019, 45(14): 17930-17935.

[7] [7] WANG Q, CAO W B, KUANG J L, et al. Spherical AlN particles synthesized by the carbothermal method: effects of reaction parameters and growth mechanism［J］. Ceramics International, 2018, 44(5): 4829-4834.

[8] [8] QIU Y, GAO L. Metal-urea complex: a precursor to metal nitrides［J］. Journal of the American Ceramic Society, 2004, 87(3): 352-357.

[9] [9] GIORDANO C, ANTONIETTI M. Synthesis of crystalline metal nitride and metal carbide nanostructures by sol-gel chemistry［J］. Nano Today, 2011, 6(4): 366-380.

[10] [10] GAO Z F, WAN Y Z, XIONG G Y, et al. Synthesis of aluminum nitride nanoparticles by a facile urea glass route and influence of urea/metal molar ratio［J］. Applied Surface Science, 2013, 280: 42-49.

[11] [11] KAI A, KAMITA Y, MIKI T. Formation process of AlN through precursors and its application to joining AlN ceramics［J］. Journal of the American Ceramic Society, 2012, 95(12): 3788-3796.

[12] [12] CHENG Y L, HUANG X, XI X A, et al. The effect of the urea content on the properties of nano-size AlN powders synthesized by a wet chemical method［J］. Ceramics International, 2018, 44(5): 5774-5779.

[13] [13] CHENG Y L, LI K X, WEI S H, et al. Reaction mechanisms of nano-sized AlN powders synthesized from dicyandiamide and its optical property［J］. Materials Chemistry and Physics, 2020, 253: 123376.

[14] [14] ROUNAGHI S A, ESHGHI H, SCUDINO S, et al. Mechanochemical route to the synthesis of nanostructured aluminium nitride［J］. Scientific Reports, 2016, 6: 33375.

[15] [15] ROUNAGHI S A, VANPOUCKE D E P, ESHGHI H, et al. Mechanochemical synthesis of nanostructured metal nitrides, carbonitrides and carbon nitride: a combined theoretical and experimental study［J］. Physical Chemistry Chemical Physics: PCCP, 2017, 19(19): 12414-12424.

[16] [16] ROUNAGHI S A, ESHGHI H, SCUDINO S, et al. Mechanochemical reaction of Al and melamine: a potential approach towards the in situ synthesis of aluminum nitride-carbon nanotube nanocomposites［J］. Physical Chemistry Chemical Physics: PCCP, 2019, 21(39): 22121-22131.

[17] [17] WANG W, ZHANG P, WANG X B, et al. AlN with strong blue emission synthesized through a solventless route［J］. Nano, 2016, 11(2): 1650016.

[18] [18] CHAURASIA H, TRIPATHI S K, BILGAIYAN K, et al. Preparation and properties of AlN (aluminum nitride) powder/thin films by single source precursor［J］. New Journal of Chemistry, 2019, 43(4): 1900-1909.

[20] [20] PIMENTA M A, DRESSELHAUS G, DRESSELHAUS M S, et al. Studying disorder in graphite-based systems by Raman spectroscopy［J］. Physical Chemistry Chemical Physics: PCCP, 2007, 9(11): 1276-1291.

[21] [21] DRESSELHAUS M S, JORIO A, SAITO R. Characterizing graphene, graphite, and carbon nanotubes by Raman spectroscopy［J］. Annual Review of Condensed Matter Physics, 2010, 1: 89-108.

[22] [22] FERRARI A C, ROBERTSON J. Interpretation of Raman spectra of disordered and amorphous carbon［J］. Physical Review B, 2000, 61(20): 14095-14107.

[23] [23] LIU Y L, PAN C X, WANG J B. Raman spectra of carbon nanotubes and nanofibers prepared by ethanol flames［J］. Journal of Materials Science, 2004, 39(3): 1091-1094.

[24] [24] BARROS E B, DEMIR N S, SOUZA FILHO A G, et al. Raman spectroscopy of graphitic foams［J］. Physical Review B, 2005, 71(16): 165422.

[25] [25] MCCULLOCH D G, PRAWER S. The effect of annealing and implantation temperature on the structure of C ion-beam-irradiated glassy carbon［J］. Journal of Applied Physics, 1995, 78(5): 3040-3047.

[26] [26] MCCULLOCH D G, PRAWER S, HOFFMAN A. Structural investigation of xenon-ion-beam-irradiated glassy carbon［J］. Physical Review B, Condensed Matter, 1994, 50(9): 5905-5917.

[27] [27] PRAWER S, NUGENT K W, LIFSHITZ Y, et al. Systematic variation of the Raman spectra of DLC films as a function of sp2: sp3 composition［J］. Diamond and Related Materials, 1996, 5(3/4/5): 433-438.

[28] [28] WEN J G, ZENG Z D, YANG L X, et al. TEM study of amorphous carbon with fully sp3-bonded structure［J］. Microscopy and Microanalysis, 2017, 23(S1): 2268-2269.