Journal of Advanced Ceramics

, Volume 2, Issue 2, pp 180–184 | Cite as

Thermal properties of AlN polycrystals obtained by pulse plasma sintering method

  • Paweł J. RutkowskiEmail author
  • Dariusz Kata
Open Access
Research Article


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.


aluminum nitride (AlN) thermal conductivity microstructure thermal diffusivity specific heat 


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© The Author(s) 2013

This article is published under license to BioMed Central Ltd. Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  1. 1.Department of Ceramics and Refractories, Faculty of Materials Science and CeramicsAGH University of Science and TechnologyKrakowPoland

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