共搜索到9800条信息,每页显示10条信息,共980页。用时:0小时0分0秒478毫秒
Aluminum doping and dielectric properties of silicon carbide by CVD LI Zhi-min(李智敏), SU Xiao-lei(苏晓磊), LUO Fa(罗 发), ZHU Dong-mei(朱冬梅), ZHOU Wan-cheng(周万城) State Key Laboratory... Al/SiC solid solution at 1 150 ℃ in a normal argon atmosphere is not produced. Key words: silicon carbide; aluminum doping; dielectric properties; chemical vapour deposition 1 Introduction Silicon......
Photocatalytic oxidation activity of titanium dioxide film enhanced by Mn non-uniform doping ZHANG Kai-jian(张开坚)1, 3, XU Wei(徐 伟)2, 4, LI Xin-jun(李新军)2, ZHENG Shao-jian(郑少健)2, XU Gang(徐 刚... degradation of aqueous methyl orange under the UV radiation. The results show that Mn non-uniform doping evidently enhances the photocatalytic activity of TiO2 thin film. In 80 min, the degradation rates......
Development in p-type Doping of ZnO俞丽萍1,朱其锵21. Department of Physical Education,School of Hubei University2. Department of Technology of Civil Engineering and Architecture, Wuhan University... panel displays and solar cells used in sports tournament. Despite its advantages, the application of ZnO is hampered by the lack of stable p-type doping. In this paper, the recent progress......
) of the BPT Film with y=0.9 are above 35 μC/cm2 and 80 kV/cm, respectively. Key words: ferroelectric; film; bismuth titanate; doping doping does not affect the crystal......
J. Cent. South Univ. Technol. (2008) 15: 25-28 DOI: 10.1007/s11771-008-0006-y Effect of CaO doping on mechanical properties and thermal shock resistance of 10NiO-NiFe2O4 composite... increases obviously by CaO doping. Bending strength of the samples doped with 2% CaO is above 185 MPa, but that of the samples without CaO is only 60 MPa. Fracture toughness is improved obviously by CaO......
Preparation and effects of W-doping on electrochemical properties of spinel Li4Ti5O12 as anode material for lithium ion batteryZHANG Xin-long(张新龙), HU Guo-rong(胡国荣), PENG Zhong-dong(彭忠东)(School...-ray diffraction (XRD) and scanning electron microscope (SEM) were employed to characterize the structure and morphology of Li4Ti4.95W0.05O12. W-doping does not change the phase composition and particle......
Effect of Manganese Doping on Oxygen Storage Capacity of Ceria-Zirconia Mixed Oxides Weng Duan1,Liang Qing1,Wu Xiaodong1 (1.Laboratory of Advanced Materials, Department of Materials Science... the oxygen storage complete capacity (OSCC) and dynamic oxygen storage capacity(OSC) of the samples. The doping method brought about strong interactions between manganese oxide and ceria, both......
Effects of Host Doping on Spectral and Long-Lasting Properties of Sm3+ -Doped Y2O2S Yao Kang1,Zhang Ludan1,Liu Shixiang1,Li Wenjun1,Wang Mingwen1 (1.Department of Applied Chemistry, College... spectra and decay curve were measured on a Hitachi F-4500 fluorescence spectrophotometer. The decay time was determined on an ST-900PM weak light photometer.The analyses show that host doping of Lu......
Influence of Ti4+ doping on electrochemical properties of LiFePO4/C cathode material for lithium-ion batteries HU Guo-rong(胡国荣), GAO Xu-guang(高旭光), PENG Zhong-dong(彭忠东), DU Ke(杜 柯), TAN Xian... impedance spectroscopy(EIS). The results indicate that the prepared samples have ordered olivine structure and doping of the low concentration Ti4+ does not affect the structure of the samples......
:The doping effects of La3+, Gd3+ and Lu3+ on the crystal structure and luminescence properties of (Y0.96-xLnxCe0.04)3Al5O12 (Ln=Gd, La, Lu) phosphors were studied.The X-ray diffraction patterns presented that with the increase of the doping concentrations of La3+ and Gd3+ ions, the d-value of (Y0.96-xLnxCe0.04)3Al5O12 (Ln=Gd, La) increased and the larger the doping ion, the stronger the effect would......