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The effect of Co and Cr substitutions for Ni on mechanical properties and plastic deformation mechanism of FeMnCoCrNi high entropy alloys 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 48, 页码: 146-155
作者:  
Zhang, H. F.;  Yan, H. L.;  Yu, H.;  Ji, Z. W.;  Hu, Q. M.
  |  收藏  |  浏览/下载:25/0  |  提交时间:2021/02/02
The effect of Co and Cr substitutions for Ni on mechanical properties and plastic deformation mechanism of FeMnCoCrNi high entropy alloys 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 48, 页码: 146-155
作者:  
Zhang, H. F.;  Yan, H. L.;  Yu, H.;  Ji, Z. W.;  Hu, Q. M.
  |  收藏  |  浏览/下载:26/0  |  提交时间:2021/02/02
Phonon-mediated stabilization and softening of 2D transition metal carbides: case studies of Ti2CO2 and Mo2CO2 期刊论文  OAI收割
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 卷号: 20, 期号: 21, 页码: 14608-14618
作者:  
Zhang, Ruifeng;  Francisco, Joseph S.;  Du, Shiyu;  Si, Chen;  Germann, Timothy C.
  |  收藏  |  浏览/下载:109/0  |  提交时间:2018/12/04
Phonon-mediated stabilization and softening of 2D transition metal carbides: case studies of Ti2CO2 and Mo2CO2 期刊论文  OAI收割
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 卷号: 20, 期号: 21, 页码: 14608-14618
作者:  
Zhang, Ruifeng;  Francisco, Joseph S.;  Du, Shiyu;  Si, Chen;  Germann, Timothy C.
  |  收藏  |  浏览/下载:116/0  |  提交时间:2018/12/04
The electronic and mechanical properties of tetragonal YB2C as explored by first-principles methods 期刊论文  OAI收割
ELSEVIER SCIENCE SA, 2017, 卷号: 726, 页码: 173-178
作者:  
Ma, Huannan;  Mi, Guofa;  Cheng, Xiyue;  Liu, Chen;  Li, Dianzhong
  |  收藏  |  浏览/下载:231/0  |  提交时间:2018/01/10
First principles study of the c/si ratio effect on the ideal shear strength of β–sic 期刊论文  iSwitch采集
Materials research express, 2016, 卷号: 3, 期号: 7
作者:  
Su,Wen
收藏  |  浏览/下载:90/0  |  提交时间:2019/05/09
Surface shape optimization for the space membrane reflector (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  
Zhang Y.;  Zhang P.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Space membrane reflector is very promised for optical quality application with the merits of ultra-lightweight and flexible. In order to improve the surface precision of membrane reflectors  the formation and surface shape error of a membrane at uniform load are studied based on the henky-cambell equations of circular membrane. The ANSYS software is used to build an optimization model of membrane reflector surface shape  in which the yield strength is the state variable  the surface load on ten concentric annular regions of the mirror is the design variable  and the minimum RMS between ideal surface and mirror surface is the target function. and the theoretical and experimental result show that RMS and PV of the optimized surfaces are reduced respectively than those before optimization. In a word  this paper offers the theoretical and experimental basis of the polyimide membrane reflector. 2011 IEEE.  
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:33/0  |  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.  
First-principles studies on the pressure dependences of the stress-strain relationship and elastic stability of semiconductors 期刊论文  OAI收割
Journal of Physics-Condensed Matter, 2006, 卷号: 18, 期号: 2, 页码: 395-409
S. Q. Wang; H. Q. Ye; S. Yip
收藏  |  浏览/下载:100/0  |  提交时间:2012/04/14