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浏览/检索结果: 共18条，第1-10条 帮助

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Rapid Solidification of Invar Alloy 期刊论文  OAI收割
Materials, 2024, 卷号: 17, 期号: 1
作者:  He, Hanxin;  Yao, Zhirui;  Li, Xuyang;  Xu, Junfeng
  |  收藏  |  浏览/下载：5/0  |  提交时间：2024/02/26
Tuning thermal expansion by a continuing atomic rearrangement mechanism in a multifunctional titanium alloy 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 卷号: 80, 页码: 234-243
作者:  Gong, D. L.;  Wang, H. L.;  Obbard, E. G.;  Li, S. J.;  Yang, R.
  |  收藏  |  浏览/下载：41/0  |  提交时间：2021/10/15
Shuffle-nanodomain regulated strain glass transition in Ti-24Nb-4Zr-8Sn alloy 期刊论文  OAI收割
ACTA MATERIALIA, 2020, 卷号: 186, 页码: 415-424
作者:  Liang, Qianglong;  Wang, Dong;  Zheng, Yufeng;  Zhao, Shuangshuang;  Gao, Yipeng
  |  收藏  |  浏览/下载：28/0  |  提交时间：2021/02/02
Shuffle-nanodomain regulated strain glass transition in Ti-24Nb-4Zr-8Sn alloy 期刊论文  OAI收割
ACTA MATERIALIA, 2020, 卷号: 186, 页码: 415-424
作者:  Liang, Qianglong;  Wang, Dong;  Zheng, Yufeng;  Zhao, Shuangshuang;  Gao, Yipeng
  |  收藏  |  浏览/下载：27/0  |  提交时间：2021/02/02
Mechanical design of zoom optical system for deep space exploration 会议论文  OAI收割
Chengdu, China, 2018-06-26
作者:  Qian, Chongsen;  Li, Fu;  Yang, Jianfeng;  Sun, Yi;  Yang, Wenqiang
  |  收藏  |  浏览/下载：41/0  |  提交时间：2019/03/22
Local Chemical Strain in PtFe Alloy Nanoparticles 期刊论文  OAI收割
INORGANIC CHEMISTRY, 2018, 卷号: 57, 期号: 17, 页码: 10494-10497
作者:  Zheng, LR;  Zheng LR(郑黎荣);  Zhu, H;  Li, Q;  Xing, XR
  |  收藏  |  浏览/下载：17/0  |  提交时间：2019/09/24
Observation of etch pits in Fe-36wt%Ni Invar alloy 期刊论文  OAI收割
International Journal of Minerals Metallurgy and Materials, 2014, 卷号: 21, 期号: 7, 页码: 682-686
D. Z. Lu; M. J. Wu
收藏  |  浏览/下载：17/0  |  提交时间：2015/01/14
Study on ultra-light secondary baffle for coaxial two-mirror telescope (EI CONFERENCE) 会议论文  OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
作者:  Zhang L.;  Zhang L.
收藏  |  浏览/下载：44/0  |  提交时间：2013/03/25
The coaxial two-mirror telescope consists of two mirrors facing each other. Classical two-mirror arrangements are Gregorian and Cassegrain. These systems are usually applied to space telescopes and often have optical baffles to prevent stray light from entering the focal plane. The optical baffles consist of concentric rings suspended between the secondary and the primary mirror. The secondary baffle for a large two-mirror optical system is designed and analyzed in this paper. According to mission of a telescope  the structure should have high stiffness and high reliability and light weight. Compared with invar  aluminum alloy and titanium alloy  carbon fiber composite is currently the best material in terms of weight-to-strength ratio. It also has advantages of high temperature tolerance and low thermal expansion. So carbon fiber composite is chosen as material to meet requirements of the coaxial telescope. In this paper  optimization method based on finite element analysis (FEA) is used for design the secondary baffle. Minimum weight of the baffle is chosen as an objective function. Thicknesses of former tube and vanes are chosen as variables. Analysis results show that the designed secondary baffle has maximum diameter of 180mm  total length of 120mm and weighs 142g. And its fundamental frequency reaches 651Hz. Therefore the baffle has many advantages  such as ultra-light weight  high stiffness and dimensional stability  etc. The optimization method and the baffle design can be helpful to other coaxial telescopes  such as Cassegrain  Gregorian and their subdivisions. 2012 IEEE.  
The nanofabrication and transport properties of ferromagnetic metal nanocontacts 期刊论文  OAI收割
MICROELECTRONIC ENGINEERING, 2010, 卷号: 87, 期号: 5-8, 页码: 1603
Gu, CZ; Xu, P; Yang, HF; Xia, K; Li, JJ; Zhang, YG
收藏  |  浏览/下载：16/0  |  提交时间：2013/09/23
Correlation between Incident and Emission Polarization in Nanowire Surface Plasmon Waveguides 期刊论文  OAI收割
NANO LETTERS, 2010, 卷号: 10, 期号: 5, 页码: 1831
Li, ZP; Bao, K; Fang, YR; Huang, YZ; Nordlander, P; Xu, HX
收藏  |  浏览/下载：13/0  |  提交时间：2013/09/17