ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA

SHEN Ji-Qiang; LONG Qi-Wei; ZHOU Jin; WANG Ke-Lin

Chinese Physics C> 1989, Vol. 13> Issue(10) : 879-885

ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA

Centre for Fundamental Physics,University of Science and Technology of China,Hefei2 Institute of Metal Research,Academia Sinica,Shenyang3 International Cehtre for Materials Physics,Academia Sinica,Shenyang

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On the basis of one simple grain boundary model,the trapped states of positrons at grain beunaries in pure Aluminium are solved and the corresponding positron annihilation lifetime spectra are calculated.The correlations between the atomic density distributions of grain boundaries and the lifetime spectra are discussedand the existing experimental results are explained theoretically.

References

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SHEN Ji-Qiang, LONG Qi-Wei, ZHOU Jin and WANG Ke-Lin. ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA[J]. Chinese Physics C, 1989, 13(10): 879-885.

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Received: 1900-01-01
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA

Corresponding author: SHEN Ji-Qiang,

Centre for Fundamental Physics,University of Science and Technology of China,Hefei2 Institute of Metal Research,Academia Sinica,Shenyang3 International Cehtre for Materials Physics,Academia Sinica,Shenyang

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1989-10-05

Abstract: On the basis of one simple grain boundary model,the trapped states of positrons at grain beunaries in pure Aluminium are solved and the corresponding positron annihilation lifetime spectra are calculated.The correlations between the atomic density distributions of grain boundaries and the lifetime spectra are discussedand the existing experimental results are explained theoretically.

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ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA

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