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浏览/检索结果: 共9条，第1-9条 帮助

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Microstructure control and hot cracking behavior of the new Ni-Co based superalloy prepared by electron beam smelting layered solidification technology 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2024, 卷号: 175, 页码: 55-71
作者:  Cui, Hongyang;  Tan, Yi;  Ning, Lidan;  Bai, Rusheng;  You, Xiaogang
  |  收藏  |  浏览/下载：54/0  |  提交时间：2024/01/08
Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 48, 页码: 9-17
作者:  Zhang, Kuiliang;  Li, Yingju;  Yang, Yuansheng
  |  收藏  |  浏览/下载：16/0  |  提交时间：2021/02/02
Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 48, 页码: 9-17
作者:  Zhang, Kuiliang;  Li, Yingju;  Yang, Yuansheng
  |  收藏  |  浏览/下载：29/0  |  提交时间：2021/02/02
Investigation on the mass transferring near-contact binary TT Cet 期刊论文  OAI收割
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 2020, 卷号: 37, 页码: 12
作者:  Tian, Xiao-Man;  Chang LF(常林凤)
  |  收藏  |  浏览/下载：30/0  |  提交时间：2020/09/28
低压脉冲磁场对H13钢凝固组织的影响 会议论文  OAI收割
包头, 2014
李应举; 王聪; 滕跃飞; 张建伟; 冯小辉; 罗天骄; 杨院生
收藏  |  浏览/下载：72/0  |  提交时间：2015/05/08
Process Research on the Laser Rapid Manufacturing Technology 会议论文  OAI收割
2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009, Zhuhai, China, December 26-28, 2009
作者:  Zhang K(张凯);  Liu WJ(刘伟军);  Shang XF(尚晓峰)
收藏  |  浏览/下载：15/0  |  提交时间：2012/06/06
Fabrication technique of large-scale lightweight SiC space mirror (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  Zhang G.;  Zhang G.;  Zhang G.
收藏  |  浏览/下载：20/0  |  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  high optical quality  and its dimensional stability are better than other traditional optical substrate materials such as ULE  Zerodure  Beryllium (Be) and so on. In this paper  the lightweight silicon carbide space mirror blank was fabricated by reaction sintering. As a space born mirror material  silicon carbide must be an optical grade ceramic. So we prepared the silicon carbide green body with gel-casting method. Then some carbon materials were supplemented into the green body which will bring reaction-sintering with silicon in a vacuum furnace during 1500-1600C  ultimately the reaction bonded silicon carbide was made. The diameter of SiC space mirror blank we have made is 680mm. If expanding the size of the vacuum furnace  bigger mirror blank can be obtained. The test results show that the mechanical and thermal properties of RB-SiC are excellent with bending strength of 350MPa  fracture toughness of 4.1 MPa·m1/2 and coefficient of thermal expansion(CET) of 2.6710-6/K. The surface roughness(RMS) could be better than 3nm.  
Modeling the dendritic evolution and micro-segregation of cast alloy with cellular automaton 期刊论文  OAI收割
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, 2004, 卷号: 11, 期号: 6, 页码: 511-516
作者:  Li, Q;  Li, DZ;  Qian, BN
  |  收藏  |  浏览/下载：19/0  |  提交时间：2021/02/02
Constraining the evolution of ZZ Ceti 期刊论文  OAI收割
BALTIC ASTRONOMY, 2003, 卷号: 12, 期号: 1, 页码: 71-103
作者:  Mukadam, AS;  Kepler, SO;  Winget, DE;  Nather, RE;  Kilic, M
收藏  |  浏览/下载：41/0  |  提交时间：2017/06/28