[4] [4] HAGGERTY J S, LIGHTFOOT A. Opportunities for enhancing the thermal conductivities of SiC and Si3N4 ceramics through improved processing［J］. Ceram Eng Sci Proc, 1995, 16(4): 475-478.

[5] [5] ZHOU Y, HYUGA H, KUSAND D, et al. A tough silicon nitride ceramic with high thermal conductivity［J］. Adv Mater, 2011, 23(39): 4563-4567.

[7] [7] DUAN Y, ZHANG J, LI X, et al. High thermal conductivity silicon nitride ceramics prepared by pressureless sintering with ternary sintering additives［J］. Int J Appl Ceram Technol, 2019, 16(4): 1399-1406.

[8] [8] WANG W, YAO D, LIANG H, et al. Effect of the binary nonoxide additives on the densification behavior and thermal conductivity of Si3N4 ceramics［J］. J Am Ceram Soc, 2020, 103(10): 5891-5899.

[9] [9] KITAYAMA M, HIRAO K, TSUGE A, et al. Thermal conductivity of β-Si3N4: II, effect of lattice oxygen［J］. J Am Ceram Soc, 2000, 83(8): 1985-1992.

[14] [14] KULIG M, GREIL P. Surface chemistry and suspension stability of oxide-nitride powder mixtures［J］. J Mater Sci, 1991, 26(1): 216-224.

[15] [15] YOKOTA H, ABE H, IBUKIYAMA M. Effect of lattice defects on the thermal conductivity of β-Si3N4［J］. J Eur Ceram Soc, 2003, 23(10): 1751-1759.

[16] [16] MARIE J, BOURRET J, GEFFROY P M, et al. Eco-friendly alumina suspensions for tape-casting process［J］. J Eur Ceram Soc, 2017, 37(16): 5239-5248.

[17] [17] GREIL P. Processing of silicon nitride ceramics［J］. Mater Sci Eng A, 1989, 109(3): 27-35.

[19] [19] TAN Q, ZHANG Z, TANG Z, et al. Rheological properties of nanometer tetragonal polycrystal zirconia slurries for aqueous gel tape casting process［J］. Mater Lett, 2003, 57(16-17): 2375-2381.

[20] [20] HACKLEY V A, MALGHAN S G. The surface chemistry of silicon nitride powder in the presence of dissolved ions［J］. J Mater Sci, 1994, 29(17): 4420-4430.

[22] [22] LAARZ E, BERGSTROM L. The effect of anionic polyelectrolytes on the properties of aqueous silicon nitride suspensions［J］. J Eur Ceram Soc, 2000, 20(4): 431-440.

[23] [23] OMATETE O O, JANNEY M A, NUNN S D. Gelcasting: From laboratory development toward industrial production［J］. J Eur Ceram Soc, 1995, 17(2-3): 407-413.

[26] [26] ZIEGLER G, HASSELMAN D. Effect of phase composition and microstructure on the thermal diffusivity of silicon nitride［J］. J Mater Sci, 1981, 16(2): 495-503.

[27] [27] FURUYA K, MUNAKATA F, MATSUO K, et al. Microstructural control of β-silicon nitride ceramics to improve thermal conductivity［J］. J Therm Anal Calorim, 2002, 69(3): 873-879.