Orientation relationships of unidirectionally aligned GdAlO3/Al2O3 eutectic fibers |
| |
| Affiliation: | 1. Corporate R&D Headquarter, Canon Inc., 30-2 Shimomaruko 3-chome, Ohta-ku, Tokyo 146-8501, Japan;2. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;1. Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-Universidad de Zaragoza, María de Luna 3, 50018 Zaragoza, Spain;2. Departamento de Ciencia de Materiales, Universidad Politécnica de Madrid, E.T.S. de Ingenieros de Caminos, 28040 Madrid, Spain;3. Instituto IMDEA Materiales, C/Eric Kandel 2, 28906 Getafe, Madrid, Spain;1. New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;2. C&A Corporation, 1-16-23 Ichibancho, Aoba-ku, Sendai, Miyagi 980-0811, Japan;3. Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi 980-8577, Japan;1. Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;3. New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;4. C&A corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi 980-0811, Japan |
| |
| Abstract: | Unidirectionally solidified rare-earth activated GdAlO3(GAP)/Al2O3 eutectic crystal with well-aligned fibrous structure exhibits excellent light guiding property and can be used as a scintillator plate for high-resolution X-ray imaging. In this paper, the microstructures and orientation relationships of the GAP/Al2O3 eutectic fibers were investigated. The regular GAP single crystal fibers with a hexagonally close-packed arrangement grew straight in the same direction along the solidification direction, and were embedded in a c-axis oriented Al2O3 single crystal matrix. The majority of GAP fibers had the orientation relationships of [0 1 0]GAP//[0 0 0 1]Al2O3 to the growth direction and to the interface plane, while slight misorientation angle of both [0 1 0]GAP axis and (1 0 0)GAP plane were observed. In the GAP/Al2O3 interface boundary, the lattice misfit between the two phases was relieved by insertion of extra half-planes on the Al2O3 side. |
| |
| Keywords: | Eutectics Directional solidification Scintillator Transmission electron microscopy EBSD |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
