Void Evolution in α-Al2O3 Irradiated by En ≥1 MeV Neutrons of 3 x 1020cm-2
XU Yong-Jun, FAN Zhi-Guo, LUO Qi, WANG Rong, ZHU Jia-Zheng, T. Iwata1, T. Minamisono2, K. Matsuta2, M. Fukuda2, M. Mihara2, ZHU Sheng-Yun
China Institute of Atomic Energy, P.O. Box 275-50, Beijing 102413
1Advanced Science Research Center, JAERI, Ibaraki 319-11, Japan
2Department of Physics, Osaka University, Toyonaka, Osaka 560, Japan
Void Evolution in α-Al2O3 Irradiated by En ≥1 MeV Neutrons of 3 x 1020cm-2
China Institute of Atomic Energy, P.O. Box 275-50, Beijing 102413
1Advanced Science Research Center, JAERI, Ibaraki 319-11, Japan
2Department of Physics, Osaka University, Toyonaka, Osaka 560, Japan
Abstract： The void evolution in α-Al2O3 irradiated by En ≥1 MeV neutrons of 3 x 1020cm-2 and post-annealed from 100°C to 1050°C has been studied by a positron annihilation lifetime technique. The void nucleation starts at 500°C. In the annealing temperature region from 550°C to 750°C, the radius of created voids keeps constant at a value of about 0.29 nm and the number of voids increases with increasing temperature. Afterwards,the radius of voids increases rapidly with the increasing annealing temperature and reaches 1.21nm at 1050°C.
XU Yong-Jun;FAN Zhi-Guo;LUO Qi;WANG Rong;ZHU Jia-Zheng;T. Iwata;T. Minamisono;K. Matsuta;M. Fukuda;M. Mihara;ZHU Sheng-Yun. Void Evolution in α-Al2O3 Irradiated by En ≥1 MeV Neutrons of 3 x 1020cm-2[J]. 中国物理快报, 2001, 18(6): 808-809.
XU Yong-Jun, FAN Zhi-Guo, LUO Qi, WANG Rong, ZHU Jia-Zheng, T. Iwata, T. Minamisono, K. Matsuta, M. Fukuda, M. Mihara, ZHU Sheng-Yun. Void Evolution in α-Al2O3 Irradiated by En ≥1 MeV Neutrons of 3 x 1020cm-2. Chin. Phys. Lett., 2001, 18(6): 808-809.
2001, Vol. 18 
