Void Evolution in α-Al2O3 Irradiated by En ≥1 MeV Neutrons of 3 x 1020cm-2

Chin. Phys. Lett.

2001, Vol. 18

Issue (6): 808-809 DOI:

Original Articles

Void Evolution in α-Al₂O₃ Irradiated by E_n ≥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

Cite this article:

XU Yong-Jun, FAN Zhi-Guo, LUO Qi et al 2001 Chin. Phys. Lett. 18 808-809

Download: PDF(289KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract The void evolution in α-Al₂O₃ irradiated by E_n ≥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.

Keywords: 61.80.Hg 78.70.Bj

Published: 01 June 2001

PACS:	61.80.Hg	(Neutron radiation effects)
	78.70.Bj	(Positron annihilation)

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I6/0808

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	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

Related articles from Frontiers Journals

[1]	LI Yue,DENG Ai-Hong,,ZHOU Yu-Lu,ZHOU Bing,WANG Kang,HOU Qing,SHI Li-Qun,QIN Xiu-Bo,WANG Bao-Yi. Helium-Related Defect Evolution in Titanium Films by Slow Positron Beam Analysis**[J]. Chin. Phys. Lett., 2012, 29(4): 808-809
[2]	ZHANG Li-Ran, DENG Ai-Hong, , YANG Dong-Xu, ZHOU Yu-Lu, HOU Qing, SHI Li-Qun, ZHONG Yu-Rong, WANG Bao-Yi . Bias Effects on the Growth of Helium-Containing Titanium Films**[J]. Chin. Phys. Lett., 2011, 28(7): 808-809
[3]	ZHANG Hong-Jun, LIU Zhe-Wen, CHEN Zhi-Quan, WANG Shao-Jie . Chemical Quenching of Positronium in CuO/Al₂O₃ Catalysts[J]. Chin. Phys. Lett., 2011, 28(1): 808-809
[4]	HAO Xiao-Peng, ZHOU Chun-Lan, WANG Bao-Yi, WEI Long. Defects in Si-Rich SiO₂ Films Prepared by Radio-Frequency Magnetron Co-sputtering Using Variable Energy Positron Annihilation Spectroscopy[J]. Chin. Phys. Lett., 2009, 26(4): 808-809
[5]	HAO Xiao-Peng, WANG Bao-Yi, YU Run-Sheng, WEI Long, WANG Hui, ZHAO De-Gang, HAO Wei-Chang. Evolution of Structural Defects in SiO_x Films Fabricated by Electron Cyclotron Resonance Plasma Chemical Vapour Deposition upon Annealing Treatment[J]. Chin. Phys. Lett., 2008, 25(3): 808-809
[6]	PENG Cheng-Xiao, WENG Hui-Min, ZHANG Yang, MA Xing-Ping, YE Bang-Jiao. Influence of Dopants in ZnO Films on Defects[J]. Chin. Phys. Lett., 2008, 25(12): 808-809
[7]	LIU Chao-Zhuo, ZHOU Zhu-Ying, SHI Li-Qun, WANG Bao-Yi, HAOXiao-Peng, ZHAO Guo-Qing. Annealing Behaviour of Helium Bubbles in Titanium Films by Thermal Desorption Spectroscopy and Positron Beam Analysis[J]. Chin. Phys. Lett., 2007, 24(8): 808-809
[8]	HUANG Chang-Hong, MA Li, CHEN Zhi-Quan, WANG Zhu, WANG Xiao-Wei, ZHANG Hong-Yan. An Experimental Study of Mg Aggregation in AA5754 Alloys byPositron Annihilation Spectroscopy[J]. Chin. Phys. Lett., 2007, 24(2): 808-809
[9]	CHEN Zhi-Quan, M. Maekawa, A. Kawasuso. Energy Variable Slow Positron Beam Study of Li⁺-Implantation-Induced Defects in ZnO[J]. Chin. Phys. Lett., 2006, 23(3): 808-809
[10]	PENG Cheng-Xiao, WENG Hui-Min, YANG Xiao-Jie, YE Bang-Jiao, CHENG Bin, ZHOU Xian-Yi, HAN Rong-Dian. Dependence of Intrinsic Defects in ZnO Films on Oxygen Fraction Studied by Positron Annihilation[J]. Chin. Phys. Lett., 2006, 23(2): 808-809
[11]	HU Yi-Fan, SUN Jia-Ning, D. W. Gidley. Nanoporous Structure in Low-Dielectric Films with Positronium Annihilation Lifetime Spectroscopy[J]. Chin. Phys. Lett., 2005, 22(6): 808-809
[12]	HU Yi-Fan, C. D. Beling, S. Fung. Variable Energy Positron Annihilation Spectroscopy of GaN Grown on Sapphire Substrates with MOCVD[J]. Chin. Phys. Lett., 2005, 22(5): 808-809
[13]	HU Yi-Fan, SUN Jia-Ning, Gidley D.W.. Probing Cu Diffusion Barrier Layers on Porous Low-Dielectric-Constant Films by Posireonium Annihilation Lifetime Spectroscopy[J]. Chin. Phys. Lett., 2005, 22(11): 808-809
[14]	HUANG Qun-Ying, LI Jian-Gang, CHEN Yi-Xue. Activation Characteristics of Fuel Breeding Blanket Module in Fusion Driven Subcritical System[J]. Chin. Phys. Lett., 2004, 21(12): 808-809
[15]	MAO Wei-Dong, WANG Shao-Jie, WANG Zhu, SUN Nie-Feng, SUN Tong-Nian, ZHAO You-Wen. Identification of Defects in Undoped Semi-insulating InP by Positron Lifetime[J]. Chin. Phys. Lett., 2001, 18(4): 808-809

Viewed

Full text

Abstract