Abstract
Metallic aluminium, calcium and yttrium were anodically dissolved in a purely organic electrolyte. Mixing of these solutions and subsequent drying and sintering led to aluminium nitride ceramics with oxygen contents down to 0.34 wt% and thermal conductivities up to 155 W m−1 K−1. The presence of homogeneously dispersed calcium and yttrium compounds led to an effective removal of oxygen from the aluminium nitride lattice due to short diffusion paths.
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Zahneisen, R., Rüssel, C. Thermal conductivity of calcium-doped aluminium nitride ceramics. Journal of Materials Science 28, 870–874 (1993). https://doi.org/10.1007/BF00400867
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DOI: https://doi.org/10.1007/BF00400867