机构

• 金属研究所 [1]
• 长春光学精密机械与物... [1]
• 上海光学精密机械研究... [1]

采集方式

• OAI收割 [3]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2022 [1]
• 2007 [2]

学科主题

• 激光器;光纤激光器 [1]

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Penetration Failure Mechanism of Multi-Diameter Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glasses Matrix Composite Rod 期刊论文  OAI收割 CRYSTALS, 2022, 卷号: 12, 期号: 2, 页码: 16 作者:  Du, Chengxin;  Fu, Huameng;  Zhu, Zhengwang;  Wang, Kehong;  Gao, Guangfa   |  收藏  |  浏览/下载：37/0  |  提交时间：2022/07/01 multi-diameter tungsten fiber-reinforced Zr-based bulk metallic glasses matrix composite  tungsten fiber  penetration failure mode  bend space  ultimate bending diameter   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：21/0  |  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.   弯曲直径对多模光纤激光器输出性能的影响 期刊论文  OAI收割 中国激光, 2007, 卷号: 34, 期号: 3, 页码: 323, 326 李立波; 楼祺洪; 周军; 董景星; 魏运荣; 李进延 收藏  |  浏览/下载：2243/262  |  提交时间：2009/09/18 激光技术  laser technique  光纤激光器  fiber laser  输出性能  output capability  刀口法  knife edge  弯曲直径  bending diameter  大模场面积多模光纤  large mode area multimode fiber