科创中国

The beads-forming furnace of solid state powder method for glass sphere producing was simulated by utilizing the commercial FLUENT software to investigate the flow field and temperature distribution in the furnace. The trajectories and temperature evolution of particles with different diameters were simulated by using the discrete phase model. It is found that the heating of particles mainly depends on the convective heat transfer with the flame. Finally, the degree of particle spheroidization was characterized by spheroidizing index. And the distributions of spheroidizing index were analyzed for particles with different diameters. According to the results, the spheroidizing index of the particle is found to be decreased with the increasing of particle diameter, which is due to the decreasing of following behaviors and the increasing of the thermal inertia.

寿 彭;Shuyong Chen;Yun Wang;Cheng Peng;Mingjiu Li;Xiaobo Peng

Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society

2016-7-1

Silver nanowires with high yield, uniform size and high aspect ratio were successfully synthesized by a simple and effective polyol method under low temperature and quiescent conditions, adopting FeCl₃·6H₂O as the nucleation control agent. The silver nanowires have an average length of 80-110 μm and an average diameter of 40-80 nm. Thus, the aspect ratio of the nanowires is greater than 1000. A series of silver nanowires dispersion with different mass volume concentration were prepared in anhydrous ethanol. These silver nanowires dispersion is used to fabricate transparent conductive silver nanowires films by spin-coating method, which shows a square resistance of 6 Ω/sq and visible light transmittance of about 80%. In addition, the influence of spin coating lays and spin coating speed of silver nanowires dispersion with different mass volume concentration on the properties of silver nanowires films are investigated.

寿 彭;Fang Fang Cao;Liang Mao Jin;Yong Kang Tang;Dong Wang;Wei Wei Wang;Chuan Li Shan;Jia Ni

Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

2017-5-25

The super-thin silicon oxynitride (SiO_xN_y) films were deposited onto the N doped polyethylene terephthalate (PET) surface. Varying the N doping parameters, the different chemical bond structures were obtained at the interface between the SiO_xN_y film and the PET surface. X-ray photoelectron spectra results showed that at the initial stage of SiO_xN_y film growth, the CN bonds could be broken and C-N-Si crosslink bonds could be formed at the interface of SiO_xN _yPET, which CN bonds could be formed onto the PET surface during the N doping process. At these positions, the SiO_xN_y film could be crosslinked well onto the PET surface. Meanwhile, the doped N could crosslink the SiO₄ and SiN₄ tetrahedrons, which could easily form the dense layer structure at the initial stage of SiO _xN_y film growth, instead of the ring andor chain structures of SiO₄ tetrahedrons crosslinked by O. Finally, from the point of applying SiO_xN_yPET complex as the substrate, the present work reveals a simple way to crosslink them, as well as the crosslink model and physicochemical mechanism happened at the interface of complex.

Wanyu Ding;Li Li;Lina Zhang;东英 巨;寿 彭;Weiping Chai

Journal of Chemical Physics

2013-3-14

The Fukushima nuclear accident produced huge amounts of ¹³⁷Cs -polluted (radioactive cesium) soil which must be dealt with to prevent the spreading of radioactive Cs into the environment. In this work, a novel and facile process was developed to directly convert Cs-polluted soil (metakaolin) into pollucite-based glass-ceramics in which Cs, as a simulant of nuclide, is immobilized. Pollucite-based glass-ceramics was synthesized by sintering mixture of a specially formulated glass powder and a Cs-precursor powder which was prepared via a simple chemistry route (simulating the Cs contaminated soil). Thermal evolution, phase composition, microstructure evolution, thermal expansion behaviors, and chemical stability of the pollucite-based glass-ceramics were characterized. X-ray diffraction confirmed that crystalline pollucite was precipitated in the amorphous glass at 1050 °C. Structural and morphological characterizations revealed that Cs was immobilized in the crystalline structure of pollucite, as well as in the glass surrounding pollucite grains. Extensive tests demonstrated that the Cs leaching rate was fairly low (4.1 × 10⁻³ g/m²/d), and pollucite-based glass-ceramics had the excellent chemical stability. We believe that this study offers a potential technique for immobilization of Cs-polluted soil and radionuclide.

Yong Yang;Tianhe Wang;Zhengyi Zhang;Zhenkun Ke;Chuanli Shan;Xin Cao;Liyun Ma;寿 彭

Chemical Engineering Journal

2020-4-1

Transparent conducting Al-doped ZnO (ZnO:Al, AZO) thin films were prepared at substrate temperature of 270 °C by pulsed direct current magnetron sputtering. NaOH solution (5 wt%) was employed to etch the AZO films at room temperature, and the surface textured AZO films were obtained successfully. The relationship between the surface textured structures and the etching process controlled by etching time was discussed. The textured morphology of the etched AZO films became clear as increasing the etching time, and the AZO film etched for 30 min exhibited uniformly and distinctly crater-like surface textured structure. Correspondingly, the haze and the resistivity increased with the increasing etching time. And the resistivity of the AZO film etched for 30 min was 3.2×10 ^-3 Ω cm.

Ying Wang;Hualin Wang;Chaoqian Liu;Yun Wang;寿 彭;Weiping Chai

Materials Science in Semiconductor Processing

2012-10

The influence of waist width on the energy consumption, glass flow and temperature distribution of float glass furnace was simulated via a software named Glass Furnace Model. The melting index, fining index, mixing index were analyzed based on the simulated results. The simulated results of the sample float glass furnace with a capacity of 550 t/d show that the glass temperature in melter and finer is increased by 10℃, and the unit energy consumption is decreased by 3%, while the melting and fining performance of the furnace is increased by 10% with decreasing the furnace waist width from the designed value of 4.0 m to 2.5 m. The optimal design of waist width is an efficient way to improve the energy efficiency of glass furnace.

寿 彭;Shuyong Chen;Liyun Ma;Tianxun Tao;Liangmao Jin

Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society

2019-2-1

An end-port furnace for container glass was simulated via the glass furnace model (GFM) software, and the performance of multi-row forced bubbling was analyzed. The influence of multi-row bubbling on the temperature and circular flow distribution of glass melt, furnace heat efficiency, glass quality was discussed according to the simulation results of furnaces with 1 to 3 rows of forced bubbling at melter bottom. It is indicated that the multi-row bubbling technique for glass furnace could enhance the heat efficiency, glass quality and melting rate of the furnace.

Shuyong Chen;寿 彭;Liyun Ma;Xuemei Zhu;Tianxun Tao;Dong Wang;Zefang Zuo

Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society

2020-2-1

Modulation spectroscopy has been performed on superstrate CdS/CdTe solar cells prepared by close-spaced sublimation. Photoreflectance (PR) measurements were conducted near the CdTe E0 band edge using a variable-wavelength probe beam in conjunction with a chopped pump beam. A fit to the observed PR spectrum was made using two third-derivative, low-field lineshapes. The band gap of the active material near the junction is 1.46 eV (CdTe1-xSx). The envelope function varied as 1 - V/Vbi· The PR spectrum shifted with a temperature coefficient of -0.31 meV/K. Photoreflectance spectroscopy offers a powerful method of determining absorber band gaps, alloying, and built-in voltage in thin-film solar cells.

Alan E. Delahoy;Zimeng Cheng;Jingong Pan;寿 彭;Ken K. Chin

2015-12-14

The indium tin oxide (ITO) thin films were deposited on glass substrates in DC magnetron sputtering system. The effects of post-annealing versus in-situ heating, substrate temperatures and DC power on the structural, morphological, electrical and optical properties of ITO thin films were investigated by X-ray diffraction scanning electronic microscopy, UV-Vis spectrophotometry and Hall effect analysis, respectively. The results show that the better electrical and optical properties of the ITO film prepared in situ at a substrate temperature of 410℃ are obtained, compared to the sample prepared at room temperature and annealed in air at 410℃. The resistivity of the ITO films monotonically decreases and the cut-off wavelength exhibits an obvious blue shift. The optimum electrical and optical properties of ITO films deposited are achieved when the substrate temperature and sputtering power is 580℃ and 85 W. The ITO thin films with a minimum resistivity of 1.4×10^-4 Ω·cm and a maximum mean visible transmittance of 93% can be prepared under the optimized process condition.

寿 彭;Jiwen Jiang;Gang Li;Kuanxiang Zhang;Yong Yang;Tingting Yao;Kewu Jin;Xin Cao;Genbao Xu;Yun Wang

Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society

2016-7-1

Advanced technology for solar energy collection is increasingly demanded in many applications. In this study we report a reactive magnetron sputtering technique to prepare a TiN/TiN_xO_y/SiO₂ ceramic composite film on aluminum substrate as a solar selective absorber. Aluminum substrate, TiN/TiN_xO_y and SiO₂ layers act as the IR-reflective metallic base layer, double interference absorber layers and ceramic anti-reflection layer, respectively. The structure of TiN, TiN_xO_y and SiO₂ layers was investigated by XRD, SEM and XPS. The ceramic composite films exhibited high absorptance of 95.20% in the solar spectrum range (0.3–2.5 μm) and low emittance of 5.45% (80 °C) in the infrared spectrum range (2.5–25 μm). This represents an improvement of the solar absorptance by a factor of 23.16 when compared with the bare aluminum substrate. When the films were tested by a heat-treatment at 400 °C for 240 h in air, the photo-thermal conversion rate showed a slight reduction at the initial stage but soon stabilized, maintaining a reasonably high conversion rate in the rest of the heat-treatment. Extensive tests at elevated temperatures indicate that the composite ceramic film is a potential candidate in concentrated power solar absorber applications for up to 400 °C.

Yong Yang;Tianhe Wang;Tingting Yao;Gang Li;Yangshan Sun;Xin Cao;Liyun Ma;寿 彭

Journal of Alloys and Compounds

2020-1-30