中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共8条，第1-8条

帮助

条数/页：排序方式：
	Statistical characterization of specimen size and temperature dependence of cleavage fracture toughness of ferritic steels 期刊论文 OAI收割 FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2024, 页码: 8 作者: Lei, Weisheng; Qian GA(钱桂安); Zhang, Peilei \| 收藏 \| 浏览/下载：23/0 \| 提交时间：2024/04/15 cleavage fracture toughness ferritic steels specimen size effect statistical model temperature dependence
	Understanding geometrical size effect on fatigue life of A588 steel using a machine learning approach 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF FATIGUE, 2023, 卷号: 172, 页码: 11 作者: Yang, Wen-Ke; Hu, Bing-Li; Luo, Yan-Wen; Song, Zhu-Man; Zhang, Guang-Ping \| 收藏 \| 浏览/下载：14/0 \| 提交时间：2024/01/07 Size effect Small specimen Fatigue life Machine learning
	Evaluation of Tensile and Fatigue Properties of Metals Using Small Specimens 期刊论文 OAI收割 ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2022, 页码: 11 作者: Yang, Wen-Ke; Song, Zhu-Man; Luo, Xue-Mei; Zhang, Guang-Ping \| 收藏 \| 浏览/下载：39/0 \| 提交时间：2022/10/08 Size effect Small specimen Tensile property Fatigue life
	Data-driven evaluation of fatigue performance of additive manufactured parts using miniature specimens 期刊论文 OAI收割 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 卷号: 35, 期号: 6, 页码: 1137-1146 作者: Wan, H. Y.; Chen, G. F.; Li, C. P.; Qi, X. B.; Zhang, G. P. \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2021/02/02 Additive manufacturing Miniature specimen Fatigue Size effect Location-specific Data analysis
	Data-driven evaluation of fatigue performance of additive manufactured parts using miniature specimens 期刊论文 OAI收割 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 卷号: 35, 期号: 6, 页码: 1137-1146 作者: Wan, H. Y.; Chen, G. F.; Li, C. P.; Qi, X. B.; Zhang, G. P. \| 收藏 \| 浏览/下载：26/0 \| 提交时间：2021/02/02 Additive manufacturing Miniature specimen Fatigue Size effect Location-specific Data analysis
	Thickness-related synchronous increase in strength and ductility of ultrafine-grained pure aluminum sheets 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2019, 卷号: 26, 期号: 11, 页码: 1450-1456 作者: Yan Ying; Zhang Guoqiang; Chen Lijia; Li Xiaowu \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2021/02/02 STACKING-FAULT ENERGIES CU-MN ALLOYS DEFORMATION-BEHAVIOR SPECIMEN DIMENSIONS TENSILE BEHAVIOR MICRO-EXTRUSION STRAIN-RATE SIZE OPTIMIZATION TEMPERATURE ultrafine-grained pure Al specimen size effect strength ductility
	Evaluation of Fatigue Properties of CA6NM Martensite Stainless Steel Using Miniature Specimens 期刊论文 OAI收割 ACTA METALLURGICA SINICA, 2018, 卷号: 54, 期号: 10, 页码: 1359-1367 作者: Ma Yefei; Song Zhuman; Zhang Siqian; Chen Lijia; Zhang Guangping \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2021/02/02 martensite stainless steel fatigue property miniature specimen size effect nuclear power material
	The synthesis and field emission property of carbon nanotubes on carbon fibers substrate (EI CONFERENCE) 会议论文 OAI收割 Technical Digest of the 20th International Vacuum Nanoelectronics Conference, IVNC 07, July 8, 2008 - July 12, 2008, Chicago, IL, United states Leyong Z.; Weibiao W.; Jingqiu L.; Yuxue X.; Da L.; Song C.; Haifeng Z. 收藏 \| 浏览/下载：35/0 \| 提交时间：2013/03/25 Using ferrocene as catalyst precursor C2H2 as carbon source carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The results of field emission showed that the emission current of CNTs/carbon fibers was 5 A at the field of 2.5 V/m and the emission current can be 280 A with a field of 7 V/m (the specimen area is 0.25 cm2 and the distance between cathode and anode is 200 m). The calculation based on the F-N plot indicated that the field enhancement factor of CNTs tip is 499122. Using the conductivity and chemical stability of carbon fibers and the uniform and sparse density distribution of CNTs on carbon fibers substrate the tip predominance of carbon nanotubes can be exerted and simultaneously the effect of screening effects between adjacent carbon nanotubes on the field emission performance can also be effectively decreased. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. For example using the removability of carbon fibers the cathode of CNTs/carbon fibers can be arbitrarily moved enlaced or combined to form different patterns and the cathode of CNTs/carbon fibers can be also fabricated in large size. Therefore CNTs/carbon fibers may have potential application in field emission displays.