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Gel-tape-casting of aluminum nitride ceramics


Aluminum nitride ceramic sheets were formed for the first time by a novel and simple method, namely gel-tape-casting process, where only two additives were used to prepare the slurries. PIBM (a water-soluble copolymer of isobutylene and maleic anhydride) acted as both dispersant and gelling agent, and PEG (polyethylene glycol) acted as plasticizer. Combining the advantages of gel-casting and tape-casting processes, flexible and uniform green tapes were obtained. The rheological properties of AlN slurries were studied to optimize the PIBM content and solids loading. After drying and debinding, the green sheets were sintered at 1840 °C in N2 atmosphere. Homogeneous microstructure with average grain size of about 7 μm was observed in the final AlN ceramics. Thermal conductivity of the AlN ceramics was 161 W/(m·K).


  1. Slack GA, Tanzilli RA, Pohl RO, et al. The intrinsic thermal conductivity of AlN. J Phys Chem Solids 1987, 48: 641–647.

    Article  Google Scholar 

  2. Mistler RE. Tape casting: The basic process for meeting the needs of the electronics industry. Am Ceram Soc Bull 1990, 69: 1022–1026.

    Google Scholar 

  3. Hotza D, Greil P. Review: Aqueous tape casting of ceramic powders. Mat Sci Eng A 1995, 202: 206–217.

    Article  Google Scholar 

  4. Descamps M, Moreau G, Mascart M, et al. Processing of aluminum nitride powder by the tape-casting process. J Eur Ceram Soc 1994, 13: 221–228.

    Article  Google Scholar 

  5. Luo X-J, Zhang B-L, Li W-L, et al. Preparation of aluminum nitride green sheets by aqueous tape casting. Ceram Int 2004, 30: 2099–2103.

    Article  Google Scholar 

  6. Olhero SM, Ferreira JMF. Rheological characterisation of water-based AlN slurries for the tape casting process. J Mater Process Tech 2005, 169: 206–213.

    Article  Google Scholar 

  7. Young AC, Omatete OO, Janney MA, et al. Gelcasting of alumina. J Am Ceram Soc 1991, 74: 612–618.

    Article  Google Scholar 

  8. Xiang J, Xie Z, Huang Y. Processing of Al2O3 sheets by the gel-tape-casting process. Ceram Int 2002, 28: 17–22.

    Article  Google Scholar 

  9. Yu Z, Huang Y, Wang C, et al. A novel gel tap casting process based on gelation of sodium alginate. Ceram Int 2004, 30: 503–507.

    Article  Google Scholar 

  10. Wiecinska P, Graule T, Szafran M. L-Ascorbic acid as a new activator in fabrication of ceramics by techniques using in situ polymerization. J Eur Ceram Soc 2014, 34: 1581–1589.

    Article  Google Scholar 

  11. Yang Y, Shimai S, Wang S. Room-temperature gelcasting of alumina with a water-soluble copolymer. J Mater Res 2013, 28: 1512–1516.

    Article  Google Scholar 

  12. Shu X, Li J, Zhang H-L, et al. Gelcasting of aluminum nitride using a water-soluble copolymer. J Inorg Mater 2014, 29: 327–330.

    Google Scholar 

  13. Jackson TB, Virkar AV, More KL, et al. High-thermalconductivity aluminum nitride ceramics: The effect of thermodynamic, kinetic, and microstructural factors. J Am Ceram Soc 1997, 80: 1421–1435.

    Article  Google Scholar 

  14. Fukumoto S, Hookabe T, Tsubakino H. Hydrolysis behavior of aluminum nitride in various solutions. J Mater Sci 2000, 35: 2743–2748.

    Article  Google Scholar 

  15. Yan H, Cannon WR, Shanefield DJ. Evolution of carbon during burnout and sintering of tape-cast aluminum nitride. J Am Ceram Soc 1993, 76: 166–172.

    Article  Google Scholar 

  16. Lee HM, Bharathi K, Kim DK. Processing and characterization of aluminum nitride ceramics for high thermal conductivity. Adv Eng Mater 2014, 16: 655–669.

    Article  Google Scholar 

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Correspondence to Jun Li or Shiwei Wang.

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Shang, Q., Wang, Z., Li, J. et al. Gel-tape-casting of aluminum nitride ceramics. J Adv Ceram 6, 67–72 (2017).

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  • AlN ceramic sheets
  • gel-tape-casting
  • PIBM
  • rheological properties
  • microstructure