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您的检索式：作者名="Wufeng Tang"
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| 1 | Effect of Sintering Temperature on the Texturing Behavior of NaCo_2O_(4-δ) Synthesized by Urea Auto-Combustion Method显示文摘Polycrystalline NaCo2O4-δ materials were prepared using the urea auto-combustion method. The reaction process and crystal growth were investigated through X-ray diffraction (XRD), thermogravimetry-differential thermal analysis (TG-DTA), and Fourier transform infrared spectrometry (FTIR). The results indicate that the formation temperature of NaCo2O4-δ is about 620°C, which is lower than that for solid-state reaction. XRD results show that the texturing along c-axis occurred as the powders calcined at 700°C were pressed into pellets with subsequently sintering, and the degree of such texturing increases with increasing sintering temperature. Surface morphologies by scanning electron microscopy (SEM) also indicate that the texturing show dependence on sintering temperature. The grains on the surfaces of the pellets sintered at 750 and 850°C have some growth trend along a-b planes, while the grains on the surface of the pellet sintered at 950°C show an obvious growth trend toward c-axis. | Yue Zhang Wei Wei Yong Liu Benpeng Zhu Ping Huang Ziyu Wang Zhongpo Zhou Wufeng Tang Jing Shi Rui Xiong | 2009 | Journal of Materials Science & Technology2009，25，6： | 0 |
| 2 | X-ray Photoemission Spectroscopy Studies of the Semiconducting Molybdenum Purple Bronze Bi_(0.2)MoO_3显示文摘电子结构伪二维(2D ) 半导体的铝紫色铜 Bi_(0.2 ) MoO_3 被 X 光检查光致核裂变介绍光谱学。Bi_(0.2 ) MoO_3 的 Thevalence 乐队由 Op_(pi ) 组成是非结合的水平, pi 和西格马结合乐队。在 1.5 eV 的山峰和在在禁止的乐队的 0.5 eV 的肩膀可以从结合 thenon d_(xy ) 被形成一些瞬间原子的 orbitals。O1s 核心级的光谱在 Bi_(0.2 ) MoO_3 在氧离子的相等的契约表明二的存在。Bi4f 核心级的光谱在铋铝单身者水晶给双性人原子的二个结合的人物看。Mo3d 核心级的光谱证实铝(Mo^(+5 ) 和 Mo^(+6 )) 的二种原子价状态。Ar^+ 离子照耀导致 MoO_6 octahedra 的更重要的失真。 | Rui XIONG Chang LUO Wufeng TANG Jing SHI | 2006 | Journal of Materials Science & Technology2006，22，4： | 0 |
| 3 | Synthesis of Spin-ladder Sr_(14)Cu_(24)O_(41)Material by Citrates Sol-gel Method显示文摘A new process to synthesize polycrystalline samples of Sr_(14)Cu_(24)O_(41)was presented.Firstly,dry gel powder of Sr_(14)Cu_(24)O_(41)was synthesized by the citrates sol-gel method,using Sr(NO_3)_2,Cu(NO_3)_2,ethylene glycol and citrate acid as raw materials.Then,polycrystalline samples of Sr_(14)Cu_(24)O_4 l were prepared by solid- state reaction.Thermal Gravimetric and Differential Thermal Analysis(TG-DTA)showed that the temperature for solid-state reaction is at 942℃.The samples are identified to be single phase by X-ray Diffraction(XRD) and Scanning Electron Microscopy(SEM).The SEM pictures showed that the first-step particles were at even size of about 100 nm by this technique.The electronic transport measurements showed that the doping compound were semiconductor with a crossover temperature T_p in the Arrhenius plot of the resistivity versus temprature. | WANG Lili WEI Hui HU Ni XIONG Rui YU Zuxing TANG Wufeng SHI Jing | 2008 | Journal of Wuhan University of Technology(Materials Science)2008，23，2： | 0 |
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