Zhangyi Huang
Sichuan University
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Publication
Featured researches published by Zhangyi Huang.
Journal of Applied Physics | 2015
Zhangyi Huang; Jianqi Qi; Li Zhou; Zhao Feng; Xiaohe Yu; Yichao Gong; Mao Yang; Qiwu Shi; Nian Wei; Tiecheng Lu
We investigate the ionization and displacement effects of an electron-beam (e-beam) on amorphous Gd2Zr2O7 synthesized by the co-precipitation and calcination methods. The as-received amorphous specimens were irradiated under electron beams at different energies (80 keV, 120 keV, and 2 MeV) and then characterized by X-ray diffraction and transmission electron microscopy. A metastable fluorite phase was observed in nanocrystalline Gd2Zr2O7 and is proposed to arise from the relatively lower surface and interface energy compared with the pyrochlore phase. Fast crystallization could be induced by 120 keV e-beam irradiation (beam current = 0.47 mA/cm2). The crystallization occurred on the nanoscale upon ionization irradiation at 400 °C after a dose of less than 1017 electrons/cm2. Under e-beam irradiation, the activation energy for the grain growth process was approximately 10 kJ/mol, but the activation energy was 135 kJ/mol by calcination in a furnace. The thermally activated ionization process was considered the fast crystallization mechanism.
RSC Advances | 2017
Zhe Tang; Zhangyi Huang; Jianqi Qi; Xiaofeng Guo; Wei Han; Mao Zhou; Shuting Peng; Tiecheng Lu
Defect-fluorite structured Gd2Zr2O7 nanoparticles were successfully synthesized via a homogeneous precipitation-solvothermal method using urea as a precipitant. The obtained nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis and transmission electron microscopy (TEM). Compared to the traditional solvothermal method, this homogeneous precipitation-solvothermal method has the advantage of producing nanoparticles with small grain sizes, a narrow size-distribution, high surface areas and little agglomeration. Particularly, the mean crystallite size of Gd2Zr2O7 obtained by this method is 20–30 nm, providing a great opportunity of using these nanoparticles as starting nano-sized building blocks for low temperature preparation of homogeneous and dense ceramics.
Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science | 2016
Li Zhou; Zhangyi Huang; Jianqi Qi; Zhao Feng; Dengxue Wu; Wei Zhang; Xiaohe Yu; Yongbing Guan; Xingtao Chen; Landong Xie; Kai Sun; Tiecheng Lu
Ceramics International | 2016
Mao Yang; Yichao Gong; Xiaohe Yu; Lan Feng; Yanli Shi; Zhangyi Huang; Xiaogang Xiang; Jianjun Wei; Tiecheng Lu
Materials Letters | 2017
Qinghua Zhang; Tiecheng Lu; Nian Wei; Xingtao Chen; Zhongwen Lu; Lijia Chen; Jianqi Qi; Zhangyi Huang; Tengfei Hua; Shanshan Wang; Yanli Shi; Ruichong Chen
Ceramics International | 2017
Ruichong Chen; Qiwu Shi; Lin Su; Mao Yang; Zhangyi Huang; Yanli Shi; Qinghua Zhang; Zhijun Liao; Tiecheng Lu
Ceramics International | 2016
Yichao Gong; Mao Yang; Lan Feng; Qiwu Shi; Yanli Shi; Xiaogang Xiang; Zhangyi Huang; Jianjun Wei; Tiecheng Lu; Wanxia Huang
Journal of The European Ceramic Society | 2017
Mao Zhou; Zhangyi Huang; Jianqi Qi; Nian Wei; Di Wu; Qinghua Zhang; Shanshan Wang; Zhao Feng; Tiecheng Lu
Journal of The European Ceramic Society | 2016
Shanshan Wang; Jianqi Qi; Xiumin Xie; Ying Wang; Zhangyi Huang; Zhao Feng; Hao Qiao; Nian Wei; Wanxia Huang; Tiecheng Lu
Ceramics International | 2018
Lin Su; Ruichong Chen; Zhangyi Huang; Mao Zhou; Qiang Zeng; Qiwu Shi; Zhijun Liao; Tiecheng Lu