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Your search keyword '"Jiang, Fusong"' showing total 20 results
Start Over Author "Jiang, Fusong" Publisher elsevier bv
20 results on '"Jiang, Fusong"'

1. ClusterSeg: A crowd cluster pinpointed nucleus segmentation framework with cross-modality datasets

Author

Ke, Jing, primary, Lu, Yizhou, additional, Shen, Yiqing, additional, Zhu, Junchao, additional, Zhou, Yijin, additional, Huang, Jinghan, additional, Yao, Jieteng, additional, Liang, Xiaoyao, additional, Guo, Yi, additional, Wei, Zhonghua, additional, Liu, Sheng, additional, Huang, Qin, additional, Jiang, Fusong, additional, and Shen, Dinggang, additional

Published
2023
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17. Kinetic studies of the crystallization of Te92Pb8 thin films

Author

Wang Hao, Sun Yang, Jiang Fusong, and Gan Fuxi

Subjects
Materials science, Nucleation, Thermodynamics, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Amorphous solid, law.invention, Avrami equation, Reaction rate constant, law, Volume fraction, Materials Chemistry, Ceramics and Composites, Grain boundary, Growth rate, Crystallization
Abstract

A method to obtain the crystallized volume fraction X and the time taken for crystallization t is proposed. The Avrami equation X = 1 − exp(− kt n ) is used to calculate the time exponent n and rate constant of crystallization k . The nucleation mechanism, nucleation rate and the growth rate of nuclei of Te 92 Pb 8 are discussed in relation to different n and k values. It is found that the nucleation at the start of the transformation, plus continuing nucleation at grain boundaries or grain edges, determine the kinetics at lower temperatures. Both the nucleation and the growth rate of nuclei are low at 32° C. They increase slowly with temperature below 46° C. From 46° C, the nucleation rate increase rapidly. Its maximum may be in the temperature region between 65° C and 80° C. The maximum growth rate of nuclei is at a temperature higher than 80° C. A nonlinearity in the plots of lnln 1/(1 − X ) vs ln t caused by the variation of n is also found and discussed. The amorphous state of Te 92 Pb 8 is unstable. The possibility of using it as erasable phase change optical recording material is evaluated.

Published
1989

18. The optical and electrical properties of TeInSb films during their phase transition

Author

Jiang Fusong, Wang Hao, and Gan Fuxi

Subjects
Phase transition, Materials science, Analytical chemistry, Dielectric, Photon energy, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Amorphous solid, law.invention, Crystallography, Electrical resistance and conductance, law, Materials Chemistry, Ceramics and Composites, Transmittance, Crystallization, Optical absorption coefficient
Abstract

The crystallization processes of amorphous TexIn0.6−xSb0.4 (0.24 ⩽ x ⩽ 0.42) films prepated by radio frequency sputtering were studied. Their electrical resistance, reflectance and transmittance were measured. The imaginary part of the dielectric constant 2nk, the optical absorption coefficient α and the optical gap for the TeInSb films have been obtained as a function of photon energy. During the phase transition, their structure, optical and electrical properties exhibited great changes. The relationships between the structure and the optical and electrical properties were discussed. TeInSb films have a very complicated crystallization process. Two main crystalline polymorphs, In2Te3 and In4Sb1.2Te2.8, existed after crystallization and a β phase (Sb, Te) was observed when the Te content increased. It was found that the crystallization processes varied with different Te contents.

Published
1989

19. Variations of structure and homogeneity in the transformation process from gel to glass in some silicate systems

Author

Jiang Fusong, Zhu Congshan, Jiang Zhonghong, and Hou Lisong

Subjects
Mineralogy, chemistry.chemical_element, Infrared spectroscopy, Condensed Matter Physics, Silicate, Electronic, Optical and Magnetic Materials, Ion, chemistry.chemical_compound, chemistry, Chemical engineering, Homogeneity (physics), X-ray crystallography, Materials Chemistry, Ceramics and Composites, Vitrification, Titanium, Sol-gel
Abstract

In the present work the variations of structure and homogeneity in the transformation process from gel to glass in some silicate systems are investigated. Emphasis is placed on the different roles of titanium ions Ti 4+ in the glasses.

Published
1986

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