Article ID Journal Published Year Pages File Type
1502129 Scripta Materialia 2007 4 Pages PDF
Abstract

High-density AlN ceramics were fabricated without additives under high pressure (3.15–4.95 GPa) at a low temperature (1300 °C), which is 300–500 °C lower than that for conventional liquid-phase sintering, in a cubic anvil high-pressure and high-temperature apparatus. The relative density of pure AlN ceramics is 94.92% at 1300 °C and 4.75 GPa for 50 min. Grain boundary phases were found in the neck area between AlN grains, indicating that grain growth by solution–precipitation must play some role.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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