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Citation: Yao Shi-Bing, Liu Zan-Jin, Zhou Shao-Min, Fang Jiang-Ling. STUDY ON THE STRUCTURE DEFECT OF ELECTRODEPOSITED TIN USING POSITRON ANNIHILATION LIFETIME SPECTROSCOPY[J]. Acta Physico-Chimica Sinica, ;1991, 7(02): 215-218. doi: 10.3866/PKU.WHXB19910217 shu

STUDY ON THE STRUCTURE DEFECT OF ELECTRODEPOSITED TIN USING POSITRON ANNIHILATION LIFETIME SPECTROSCOPY

1.
Chemistry Department, Xiamen University, Xiamen 361005; Physics Department, Xiamen University

Received Date: 13 December 1989
Available Online: 15 April 1991

The structure defect of electrodeposited tin was investigated by means of positron annihilation lifetime spectroscopy. It was observed that when annealing temperatures were less than 120 ℃, the vacancies aggregated into a cluster; in the region of 120 —160 ℃, the structure defects changed considerably, some vacancy cluster enlarged and some shrunk due to thermal migration of the atoms; the recrystallization of deposits took place in temperature of 180 ℃, in this case the positrons were premarily annihilated in the expanded crystal boundary.
- Electrodeposited tin; Defect; Positron; Recrystallization
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