Processing and microstructure of Al₂O₃/YAG eutectic ceramic by laser rapid remelting

[1] Waku Y, Nakagawa N, Wakamoto T, et al. A ductile ceramic eutectic composite with high strength at 1873K [J]. Nature, 1997, 389:49-52 [2] Sayir A. Directional solidification of eutectic ceramics [M]. Oxford:Oxford University Press, 1999:1-7 [3] Pastor J Y, Llorca J, Salazar A, et al. Mechanical properties of melt-grown alumina-yttrium aluminum garnet eutectics up to 1900K [J]. J Am Ceram Soc, 2005, 88(6):1488-1495 [4] 王华明,张凌云,李安,等. 金属材料快速凝固激光加工成形[J]. 北京航空航天大学学报,2004,30(10):962-967 Wang Huaming, Zhang Lingyun, Li An, et al. Rapid solidification laser processing and forming of advaced aeronautical metallic materials[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004,30(10):962-967(in Chinese) [5] 张军, 苏海军, 刘林. Al₂O₃/YAG共晶自生复合陶瓷的激光熔凝实验研究[J]. 航空材料研究学报,2003,23:171-174 Zhang Jun, Su Haijun, Liu Lin. Experiment research on Al₂O₃/YAG eutectic ceramic in-situ composite with laser remelting [J]. J Aeronautical Mater, 2003, 23:171-174(in Chinese) [6] Jackson K A, Hunt J D. Lamellar and rod eutectic growth [J]. Trans AIEE, 1966, 236:1129-1142 [7] Matson L E, Hecht N. Microstructural stability and mechanical properties of directionally solidified alumina/YAG [J]. J Eur Ceram Soc, 1999, 19:2487-2501 [8] 杨森,黄卫东,林鑫,等. 激光快速凝固条件下Al-5.6wt%Mn合金的组织选择规律研究[J]. 应用激光,1999,19(5):243-246 Yang Sen, Huang Weidong, Lin Xin, et al. Study on microstructure selection of Al-5.6wt%Mn alloy under laser rapid solidification condition [J]. Applied Laser, 1999, 19(5):243-246(in Chinese) [9] Francisco I D, Merino R I, Orera V M, et al. Growth of Al₂O₃/ZrO₂ (Y₂O₃) eutectic rods by the laser floating zone technique:effect of the rotation [J]. J Eur Ceram Soc, 2005, 25(8):1341-1350 [10] Yasuda H, Ohnaka I, Sugiyama A, et al. Undercooled melt shaping of Al₂O₃-YAG eutectic composite by melting the Al₂O₃-YAP eutectic structure [J]. Mater Sci Forum, 2005(475-479):2709-2712 [11] Caslavsky J L, Viechnicki D J. Melting behavior of metastability of yttrium aluminum garnet (YAG) and YAlO₃ determined by optical difference thermal analysis [J]. J Mater Sci, 1980, 15(7):1709-1718 [12] Mizutani Y, Yasuda H, Ohnaka I, et al. Phase selection of the Al₂O₃-Y₂O₃ system controlled by nucleation [J]. Mater Trans, 2000, 42(2):238-244