Solid-Liquid Reaction in the Si3N4-AlN-Y2O3 System under 1 MPa of Nitrogen |
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| Authors: | Zhen-Kun Huang Tseng-Ying Tien |
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| Affiliation: | Department of Materials Science and Engineering, The University of Michigan, Ann Arbor, Michigan 48109 |
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| Abstract: | The melting behaviors of selected compositions in the Si3N4-AlN-Y2O3 system were determined under 1 MPa of nitrogen. The phase diagrams of the ternary and their binary systems are presented. The lowest melting composition of the ternary system contains 15 mol % Si3N4, 25 mol % AIN, and 60 mol % Y2O3 and has a melting temperature of 1650°C. The binary eutectic compositions and temperatures are 15 mol % Si3N4 and 85 mol % Y2O3 at 1720°C, and 20 mol % AIN and 80 mol% Y2O3 at 1730°C. |
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