Abstract
Aluminum nitride (AlN) polycrystals were prepared by pulse plasma sintering (PPS) technique. The starting AlN powder mixtures were composed with 3.0 wt%, 5.0 wt% and 10 wt% of yttrium oxide (Y2O3), respectively. Relative density of each polycrystal was measured by hydrostatic method and evaluated higher than 97%. X-ray diffraction (XRD) method was used for phase examination of the samples after heat treatment. Microstructure examination supported by computer-aided analysis was performed by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The results were correlated with thermal conductivity of the samples carried out by laser pulse method (LFA). The influence of the rapid sintering technique and yttrium oxide additive content on the thermal conductivity and microstructure appearance of AlN polycrystals was clearly shown.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Baik K, Drew RAL. Aluminum nitride: Processing and applications. Key Eng Mat 1996, 122–124: 553–570.
Axelbaum RL, Lottes CR, Huertas JI, et al. Gas-phase combustion synthesis of aluminum nitride powder. Twenty-Sixth Symposium (International) on Combustion/The Combustion Institute, 1996: 1891–1897.
Campbell CK. Applications of surface acoustic and shallow bulk acoustic wave devices. Proc IEEE 1989, 77: 1453–1484.
Tiegs TN, Kiggans Jr. JO. High thermal conductivity lossy dielectric using codensified multilayer configuration. U.S. Patent 6579393, June 2003.
Rutkowski P, Kata D. The influence of aluminum nitride polycrystal annealing time on its thermal conductivity. Ceram Mater 2013, 65 (in Polish, in press).
Komeya K, Tatami J. Liquid phase sintering of aluminum nitride. Mater Sci Forum 2007, 554: 181–188.
Jankowski K, Kata D, Lis J. Preparation of polycrystalline aluminum nitride with yttria additive. Ceram Mater 2012, 64: 214–218 (in Polish).
Jackson TB, Virkar AV, More KL, et al. High-thermal-conductivity aluminum nitride ceramics: The effect of thermodynamics, kinetics and microstructural factors. J Am Ceram Soc 1997, 80: 1421–1435.
Xu GF, Olorunyolemi T, Wilson OC, et al. Microwave sintering of high-density, high thermal conductivity AlN. J Mater Res 2002, 17: 2837–2845.
Rutkowski P, Kata D, Lis J. Thermal conductivity of polycrystalline AlN. Ceram Mater 2012, 64: 572–576 (in Polish).
Michalski A. Pulse plasma sintering of ceramics materials. Ceramics 2005, 91: 379–385.
Bellosi A, Esposito L, Scafè E, et al. The influence of microstructure on the thermal conductivity of aluminum nitride. J Mater Sci 1994, 29: 5014–5022.
Craft S, Moody B, Dalmau R, et al. Thermal expansion engineering for polycrystalline aluminum nitride sintered bodies. U.S. Patent 2012/0146023 A1, June 2012.
Li MJ, Zhang LM, Shen Q, et al. Microstructure and properties of spark plasma sintered AlN ceramics. J Mater Sci 2006, 41: 7934–7938.
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is published with open access at Springerlink.com
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Rutkowski, P.J., Kata, D. Thermal properties of AlN polycrystals obtained by pulse plasma sintering method. J Adv Ceram 2, 180–184 (2013). https://doi.org/10.1007/s40145-013-0059-8
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40145-013-0059-8