The glass forming ability of the [(Fe12/13Y1/13)100?xBx]96Nb2Zr2 (x=9–26) system was investigated using a series of cluster lines. Three types of clusters, an icosahedron (Fe12Y), a capped Archimedes anti-prism (Fe8B...The glass forming ability of the [(Fe12/13Y1/13)100?xBx]96Nb2Zr2 (x=9–26) system was investigated using a series of cluster lines. Three types of clusters, an icosahedron (Fe12Y), a capped Archimedes anti-prism (Fe8B3) and a capped trigonal prism (Fe9B), as well as a binary eutectic (Fe83B17) were considered. Bulk glassy alloy rods of 3 mm in diameter were synthesized using a copper mold suction-casting method. The glass transition temperature was observed for all samples in the boron range of 15.9at%-25.7at%, with the alloy at 15.9at% of boron having the best thermal properties. The ferrous-based bulk metallic glasses (BMG) obtained have high reduced glass transition temperatures with the maximum reaching 0.63 and large supercooled liquid regions with the maximum reaching 111 K. Magnetic testing revealed a large value of coercive force and remanent magnetization, being 11 kA/m and 0.1 T, re- spectively.展开更多
1 000 k V淮南-南京-上海特高压交流线路在房屋密集地区,采用V型绝缘子串以减小走廊,因风速较大使得V型绝缘子串的夹角很大,横担较长,为满足间隙要求,横担也起拱设计。采用Y型绝缘子串可充分利用层间距离及塔头间隙的裕度,缩减横担长度...1 000 k V淮南-南京-上海特高压交流线路在房屋密集地区,采用V型绝缘子串以减小走廊,因风速较大使得V型绝缘子串的夹角很大,横担较长,为满足间隙要求,横担也起拱设计。采用Y型绝缘子串可充分利用层间距离及塔头间隙的裕度,缩减横担长度,降低杆塔重量。以本工程为例,从Y型绝缘子串的结构、绝缘长度、电场分布、间隙的冲击放电和电磁环境等设计方面进行介绍分析,总结经验,优化设计。展开更多
基金This project was financially supported by the National Natural Science Foundation of China (No.50401020, 50671018, 50631010)the Provincial Science and Technology Foundation of Liaoning, China.
文摘The glass forming ability of the [(Fe12/13Y1/13)100?xBx]96Nb2Zr2 (x=9–26) system was investigated using a series of cluster lines. Three types of clusters, an icosahedron (Fe12Y), a capped Archimedes anti-prism (Fe8B3) and a capped trigonal prism (Fe9B), as well as a binary eutectic (Fe83B17) were considered. Bulk glassy alloy rods of 3 mm in diameter were synthesized using a copper mold suction-casting method. The glass transition temperature was observed for all samples in the boron range of 15.9at%-25.7at%, with the alloy at 15.9at% of boron having the best thermal properties. The ferrous-based bulk metallic glasses (BMG) obtained have high reduced glass transition temperatures with the maximum reaching 0.63 and large supercooled liquid regions with the maximum reaching 111 K. Magnetic testing revealed a large value of coercive force and remanent magnetization, being 11 kA/m and 0.1 T, re- spectively.
基金supported by grants from Guangdong Key Laboratory of Forensic Genetics(2010A060801001)Guangdong Scientific and Technological Project(2013B021500010)Applied-innovation Project of Ministry of Public Security(2011YYCXGDST076)~~
文摘1 000 k V淮南-南京-上海特高压交流线路在房屋密集地区,采用V型绝缘子串以减小走廊,因风速较大使得V型绝缘子串的夹角很大,横担较长,为满足间隙要求,横担也起拱设计。采用Y型绝缘子串可充分利用层间距离及塔头间隙的裕度,缩减横担长度,降低杆塔重量。以本工程为例,从Y型绝缘子串的结构、绝缘长度、电场分布、间隙的冲击放电和电磁环境等设计方面进行介绍分析,总结经验,优化设计。