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摘要
Based on the microstructure characteristics during directed melt nitridation with Al melt, a gas-liquid-solid model has been built. Results show that chemical absorption of nitrogen on the surface of melt controlled the reaction rate of Al nitridation. Simultaneously, Al was transported up by the capillaries. However, the capillary radii in the AlN crystals or among AlN crystal columns decreased as nitridation continued, which prevented further penetration of Al. Eventually, Al was depleted at the reaction frontier and nitridation terminated.
- 出版日期2008-1
- 单位武汉科技大学
