中国科学院机构知识库网格系统: 检索

Recent Progress in Superhydrophilic Carbon-Based Composite Membranes for Oil/Water Emulsion Separation 期刊论文 OAI收割
ACS APPLIED MATERIALS & INTERFACES, 2021, 卷号: 13, 期号: 31, 页码: 36679-36696
作者: Gu, Jincui; Ji, Lingtong; Xiao, Peng; Zhang, Chang; Li, Jian

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收藏 | 浏览/下载：18/0 | 提交时间：2021/12/01

NANOTUBE HYBRID MEMBRANES GRAPHENE OXIDE MEMBRANES ULTRAFAST SEPARATION WATER-PURIFICATION SPECIAL WETTABILITY EFFICIENT CONSTRUCTION FABRICATE FUTURE FUNCTIONALIZATION

Recent Progress in Superhydrophilic Carbon-Based Composite Membranes for Oil/Water Emulsion Separation 期刊论文 OAI收割
ACS APPLIED MATERIALS & INTERFACES, 2021, 卷号: 13, 期号: 31, 页码: 36679-36696
作者: Gu, Jincui; Ji, Lingtong; Xiao, Peng; Zhang, Chang; Li, Jian

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收藏 | 浏览/下载：17/0 | 提交时间：2021/12/01

NANOTUBE HYBRID MEMBRANES GRAPHENE OXIDE MEMBRANES ULTRAFAST SEPARATION WATER-PURIFICATION SPECIAL WETTABILITY EFFICIENT CONSTRUCTION FABRICATE FUTURE FUNCTIONALIZATION

Influence of post-annealing ambient on the superconducting properties and microstructure of YBa_2Cu_3O_7-δ films 会议论文 OAI收割
The 29th International Symposium on Rarefied Gas Dynamics, 中国陕西西安, 2014-07-13
作者: Wang LH(王连红); Liu C(刘崇); Fan J(樊菁)

收藏 | 浏览/下载：29/0 | 提交时间：2015/09/10

annealing films YBCO amorphous ambient themselves evaporation fabricate annealed hence

Fabrication of Nanoelectrodes by Cutting Carbon Nanotubes Assembled by Di-Electrophoresis Based on Atomic Force Microscope 期刊论文 OAI收割
International Journal of Intelligent Mechatronics and Robotics, 2012, 卷号: 2, 期号: 3, 页码: 1-13
作者: Zhao ZX(赵增旭); Tian XJ(田孝军); Dong ZL(董再励); Xu K(许可)

收藏 | 浏览/下载：20/0 | 提交时间：2012/12/28

Atomic Force Microscope (AFM) Carbon Nanotubes (CNT) Di-Electrophoresis (DEP) Fabricate Nanoeletrodes

Fabrication of polycrystalline diamond tools by micro electrodischarge machining (EI CONFERENCE) 会议论文 OAI收割
8th CHINA-JAPAN International Conference on Ultra-Precision Machining, CJUPM 2011, November 20, 2011 - November 22, 2011, Hangzhou City, China
Zhang Z.; Peng H.; Yan J.; Kuriyagawa T.

收藏 | 浏览/下载：96/0 | 提交时间：2013/03/25

There is an increasingly growing demand for fabrication of micro-structured surfaces such as micro lens arrays and micro prism arrays. Micro end milling is one of the most efficient machining technologies for fabricating these microstructures. In this paper micro electrodischarge machining (EDM) was applied to fabricate single flute micro end mills on polycrystalline diamond (PCD). Using the fabricated end mills micro end milling tests of dimple arrays were performed on tungsten carbide (WC) molds and the machining characteristics were investigated. (2012) Trans Tech Publications.

Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
Tan X.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In ultraviolet spectroscopy groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order it is important to control the groove shape precisely so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method the required blaze angle is small we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides since the etched groove shape depends on the aspect ratio of the photoresist mask ridge if we wish to fabricate larger gratings with this method we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Design and fabrication of CGH for aspheric surface testing and its experimental comparison with null lens (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者: Zhao J.; Zhang X.; Zhang X.; Zhang X.; Li F.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

Computer-generated hologram (CGH) is an effective way to compensate wavefront in null test of aspheric surfaces and freeform surfaces. Our strategies of CGH design and fabrication for optical testing are presented and an experiment demonstrating the compensation results of CGH and null lens is also reported. In order to design complex CGH software was developed with which we can design a CGH including three sections: main section for compensating wavefront in null test alignment section for adjusting the relative position between CGH and interferometer and fiducial section for projecting fiducial marks around the optics under test. The design result is represented in GDS II format file which could drive a laser-direct-writer- machine to fabricate a photomask. Then a 1:1 replication process is applied to duplicate the patterns from photomask to a parallel optical substrate whose surface is error better than /60 rms. Finally an off-axis aspheric surface was tested with CGH and null lens respectively. The test result with CGH (0.019rms) is almost the same as the result with null lens (0.020 rms). This experiment also demonstrated that fiducial marks projected by CGH can be used to guide the alignment of the optics and measurement of its off-axis distance. 2010 Copyright SPIE - The International Society for Optical Engineering.

Manufacture of 1.2m reaction bonded silicon carbide mirror blank CFID (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
作者: Zhang G.; Zhang G.; Zhang G.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

Silicon carbide (SiC) is a new type candidate material for large-scale lightweight space mirror. Its low thermal distortion high stiffness fine optical quality and dimensional stability make SiC an ideal material for large space born telescope. Since ten years Changchun institute optics fine mechanics and physics (CIOMP) has developed reaction bonded SiC (RB-SiC) technology for space application and can fabricate RB-SiC mirror with scale less than 1.0 meter for telescope. The green body is prepared with gel-casting method which is an attractive new ceramic forming process for making high-quality complex-shaped ceramic parts. And then unmolding drying binder burning out reacting bonded the RB-SiC can be obtained. But with the development of space-born or ground telescope the scale of primary mirror has exceeded 1.0 meter. So CIOMP has developed an assembly technique which called novel reaction-formed joint technology for larger RB-SiC mirror blank. The steps include joining of green bodies with mixture comprised of SiC particles and phenolic resin etc firing machining and sintering. Joining the 1.2 meter RB-SiC mirror blank by the novel reaction-formed joint technology. And testing the welding layer's performance the results show that the thickness of 54-77m the microstructure and thermal property can be comparable to the substrate and the mechanical property are excellent in bending strength of 307MPa. 2010 Copyright SPIE - The International Society for Optical Engineering.

Fabrication and testing of hard X-ray hourglass lenses (EI CONFERENCE) 会议论文 OAI收割
Micro and Nano Technology - 1st International Conference Society of Micro/Nano Technology, CSMNT, November 19, 2008 - November 22, 2008, Beijing, China
作者: Zhu Y.; Wang W.; Wang W.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

Based on the refraction theory of the lens the SU-8 photoresist hard X-ray hourglass lenses with three different structure parameters are fabricated. The mask-back exposure technique is introduced to fabricate the lenses. The focusing performance of this device is tested at Beijing Synchrotron Radiation Facility (BSRF). At the distance of 1.65m from the lenses an obviously focusing performance in one dimension is observed. The relative intensity of the lenses with the largest gain is about 217.7 the gain of the lens is about 1.15 and the dimension of the focus is about 33m. The focusing performance of this device can be improved through the developing of the mask-back exposure technique. 2009 Trans Tech Publications Switzerland.

808nm high-power high-efficiency GaAsP/GaInP laser bars (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者: Wang Y.; Wang L.; Wang L.; Wang L.; Liu Y.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

808nm high power diode lasers which is rapidly maturing technology technically and commercially since the introduction in 1999 of complete kilowatt-scale diode laser systems have important applications in the fields of industry and pumping solid-state lasers (DPSSL). High power and high power conversion efficiency are extremely important in diode lasers and they could lead to new applications where space weight and electrical power are critical. High efficiency devices generate less waste heat which means less strain on the cooling system and more tolerance to thermal conductivity variation a lower junction temperature and longer lifetimes. Diode lasers with Al-free materials have superior power conversion efficiency compared with conventional AlGaAs/GaAs devices because of their lower differential series resistance and higher thermal conductivity. 808nm GaAsP/GalnP broad-waveguide emitting diode laser bars with 1mm cavity length have been fabricated. The peak power can reach to 100.9W at 106.5A at quasicontinuous wave operation (200s 1000Hz). The maximum power conversion efficiency is 57.38%. Based on these high power laser bars we fabricate a 1 3 arrays the maximum power is 64.3 W in continuous wave mode when the current is 25.0A. And the threshold current is 5.9A the slope efficiency is 3.37 W/A. 2008 SPIE.