Microstructure and thermal conductivity of AIN ceramics containing additives

@article{Du1996MicrostructureAT,
  title={Microstructure and thermal conductivity of AIN ceramics containing additives},
  author={S. Du and Longqiao Gao and F. Li and Z. Liu and Young Jei-Oh},
  journal={Journal of Materials Science},
  year={1996},
  volume={31},
  pages={3679-3683}
}
The effect on AIN ceramic of the addition of Y2O3, Yb2O3, Er2O3 and CaO were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and thermal conductivity measurements. The effect of grain boundary segregation and second phase distribution on the thermal conductivity are discussed. The Er2O3-CaO-and the Yb2O3-CaO-AIN ceramics have a higher thermal conductivity than the CaO-and the Y2O3-CaO-AIN ceramics. This is explained on the basis of the free energy… Expand
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Europium oxide has been investigated as a sintering aid and dopant for AIN. Pressureless sintering was carried out with 0 to 9 wt% Eu2O3 additives, and dense sintered specimens were obtained using 1Expand
Effect of Additives on the Pressureless Sintering of Aluminum Nitride between 1500° and 1800°C
Combined oxide additives (Y2O3, CaO, La2O3, CeO2, SiO2, TiO2, and Fe2O3) were investigated as AIN sintering aids. AIN can be fully sintered at 1600°C to substantial thermal conductivity (92 W/(m·K))Expand
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Sintering of Aluminum Nitride