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	Electron transport behavior of polymer-derived amorphous silicoboron carbonitrides 期刊论文 OAI收割 Journal of the American Ceramic Society, 2019, 卷号: 102, 期号: 10, 页码: 6038-6047 作者: K.W.Wang; B.S.Ma; L.G.Zhang; Z.Z.Sun; Y.G.Wang \| 收藏 \| 浏览/下载：48/0 \| 提交时间：2020/08/24 band gap,electrical properties,silicoboron carbonitride,structure,optical-absorption,si-(b)-c-n system,phase-separation,atomic-structure,ceramics,films,conductivity,spectra,semiconductors,diffraction,Materials Science
	Current Status in Layered Ternary Carbide Ti(3)SiC(2), a Review 期刊论文 OAI收割 Journal of Materials Science & Technology, 2009, 卷号: 25, 期号: 1, 页码: 1-38 H. B. Zhang; Y. W. Bao; Y. C. Zhou 收藏 \| 浏览/下载：23/0 \| 提交时间：2012/04/13 Layered ternary ceramics Ti(3)SiC(2) Mechanical properties Oxidation titanium-silicon carbide thermal-shock behavior temperature oxidation behavior si-c system transmission electron-microscopy chemical-vapor-deposition ti3si0.9al0.1c2 solid-solution liquid reaction synthesis fatigue-crack growth high-purity ti3sic2
	Manufacturing and testing of the line-array fiber-optic image slicer based on silicon V-grooves (EI CONFERENCE) 会议论文 OAI收割 MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China 作者: Zhu Y. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 Linear fiber-optic image slicer is used more and more in spatial exploration and imaging system. In this paper a plane arranging method of fiber-optic array based on Si-V grooves is established in order to improve the accuracy and reduce the cost of manufacturing. Firstly the Si-V groove array is micro-machined with anisotropic etching process then optical fibers are placed in the grooves orderly with plane arranging method. Secondly the end surfaces of the device are polished also the linear fiber-optic image slicer is packaged. Finally some parameters are tested including structure parameters transmittivity and vibration test. Experimental results indicate that the maximum error accumulated in 2000 periods of the Si-V grooves is 0.5 m the error of the height in Si-V grooves is less than 0.15m the roughness of the end surface is less than 0.9nm. The transmittivity of the linear fiber-optic image slicer that without optical film is 51.46% at the wavelength of 632.8nm. After random vibration experiment the ratio of the broken fiber increased by 0.1%. While the temperature reached 320C the stress of epoxy will be 130Mpa which is close to the limit resistance stress of 139Mpa some cracks appeared.
	Design of optical elements for imaging the earth's plasmasphere (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China 作者: Chen B.; Chen B.; Wang X.-K. 收藏 \| 浏览/下载：32/0 \| 提交时间：2013/03/25 Studying the distribution of He+ in Earth's plasmasphere by detecting its resonantly-scattered emission at 304A will record the structure and dynamics of the cold plasma in Earth's plasmasphere on a global scale. EUV imaging systems usually utilizes near normal incidence optics including multilayer mirror and filter. In this paper the space condition of the Earth's plasmasphere to confirm the expected performance of mirror and filter for this task were analyzed and some guidelines for the design of the optical elements were introduced. In order to achieve higher response at 304A and reduce 584A radiation for the optical system a new multilayer coating of Mo/Si with UOx (x=2-3) was developed and it is indicated that promising filter material is Al/C with a nickel mesh. In addition we compute the reflectance of multilayer mirror based on optical constants and the transmission of the filter based on atomic scattering factor. The results show the multilayer mirror has high reflectance of 26.27% at 304 Aand low reflectance of 0.60% at 584A. Finally the conversion efficiency of mirror coupled with filter is 6.88% at 304A and 0.01% at 584 A.
	TEM investigations on layered ternary ceramics 期刊论文 OAI收割 Journal of Materials Science & Technology, 2007, 卷号: 23, 期号: 2, 页码: 145-165 Z. J. Lin; M. S. Li; Y. C. Zhou 收藏 \| 浏览/下载：20/0 \| 提交时间：2012/04/13 layered ternary ceramics MAX phase TEM STEM interfacial structure liquid reaction synthesis transmission electron-microscope high-temperature oxidation ab-initio calculations ti3sic2 thin-films titanium-silicon carbide si-c system ti-al-c mechanical-properties crystal-structure
	Intermediate phases in synthesis of Ti3SiC2 and Ti3Si(Al)C-2 solid solutions from elemental powders 期刊论文 OAI收割 Journal of the European Ceramic Society, 2006, 卷号: 26, 期号: 12, 页码: 2373-2380 H. B. Zhang; Y. C. Zhou; Y. W. Bao; M. S. Li; J. Y. Wang 收藏 \| 浏览/下载：91/0 \| 提交时间：2012/04/14 Ti3SiC2 hot pressing impurities X-ray methods high-temperature synthesis titanium-silicon carbide si-c system oxidation resistance combustion synthesis neutron-diffraction reaction-mechanism rapid synthesis growth carbon
	All-solid-stated laser controller design based on digital optical feedback (EI CONFERENCE) 会议论文 OAI收割 Lasers in Material Processing and Manufacturing II, November 10, 2004 - November 12, 2004, Beijing, China 作者: Liu L.; Wang J.-L.; Wang J.-L.; Liu L. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 The new design about a CW digital all-solid-stated LD pumped Nd:YVO 4 controller is introduced. The stable output power of this digital laser controller which adopts Digital Signal Processor(TMS320C31) is approximately 20mW. The whole system is composed of constant- current source protection circuit pulse-width modulation circuit Si-photo-detector and amplified circuit and Digital Signal Processor control system etc. In terms of error deviation Based on nonlinear control curves of LD power output by Si-photo-detector the region control can be obtained by means of the PID control algorithm in the software platform that is error amendment and high stability laser power output can be achieved. And the precision of temperature control can reduce from 0.2C to 0.04C. By adopted integral separated mode PID control algorithm the LD output power instability ( %) down to 2%. By way of adopting the new digital design the work to protect the laser diode including the continuous adjustable output power with high accuracy and stability is easily obtained. The internal-external modulation control of the laser power based on digital optical feedback can be accomplished with stable power output. At last the bringing reasons of noise are analyzed and the solving methods are put forward in this paper.
	HREM observations of the synthesized process of nano-sized SiC by ball milling of Si and C mixed powders 期刊论文 OAI收割 Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2001, 卷号: 300, 期号: 1-2, 页码: 278-283 X. Y. Yang; Z. W. Huang; Y. K. Wu; H. Q. Ye 收藏 \| 浏览/下载：16/0 \| 提交时间：2012/04/14 Si-C system ball milling high-resolution electronic microscopy elemental powders temperature silicon mechanosynthesis transition