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期刊Simultaneous Determination of Zirconium and hafnium by Dual System and Dual Wavelength Spectrophotometry
《稀有金属:英文版》1993年第4期301-304,共4页张贵珠 刘蜀利 杨万龙 何锡文 史慧明 
A dual system and dual wavelength spectrophotometry(DSDWS)used to simultaneously determine Zrand Hf were proposed.《Zr(Hf)-xO-CTMAB》and《Zr(Hf)-CAB-CDMAA-Triton X-100》were chosenas a pair of chromophoric syste...显示全部
关键词:DUAL SYSTEM and DUAL WAVELENGTH SPECTROPHOTOMETRY ZIRCONIUM hafnium 
期刊Hf对铁素体钢中辐照引起的晶间偏析的影响
《金属学报》2006年第10期1041-1045,共5页吕铮 R.G.Faulkner 坂口纪史 木下博嗣 高桥平七郎 P.E.J.Flewitt 
1%Hf(质量分数)被注入E911钢中.利用250 keV的Ni离子在300℃辐照含Hf和不含Hf的E911钢,以研究Hf的添加对铁素体/马氏体钢中由辐照引起的偏析的影响.结果表明,Hf的添加抑制了晶界上P原子的富集和Cr原子的贫化.讨论和评估了Hf对自由...显示全部
关键词:HF 铁素体钢 辐照 偏析 
期刊First-Principles Study of the Influence of Lattice Misfit on the Behavior and the Ductility Effect of hafnium in Ni-Ni3Al System
《Acta Metallurgica Sinica(English Letters)》2014年第1期Yuxi Wu Jia Guo Jieshan Hou Wanglin Zhang Renzhong Huang Xianguo Liu Xiufang Ma Qianfeng Zhang 
the financial support from the National Natural Science Foundation of China(Nos. 51001001 and 51201002)
Two Ni/Ni3Al-interface-contained cluster models with/without lattice misfit are studied by first-principles method to clarify the debates about the segregation behaviors of hafnium(Hf) and explore the influence of l...显示全部
关键词:Aluminum Ductility hafnium Refuse digestion Segregation (metallography) 
期刊Influence of Carbon Content and Solidification Condition on Incipient Melting of DS Superalloy MAR-M200+2Hf
《材料科学技术:英文版》1989年第2期90-95,共6页郑运荣 王罗宝 李成功 
Hf lowers the incipient melting temperatureof superalloy. As carbon content in Hf-bearingalloy decreases, the incipient melting temperaturedrops furthey. PD ingots have stronger tendencyto incipient melting than HRS o...显示全部
关键词:DS SUPERALLOY hafnium incipient MELTING phase TRANSFORMATION heat treatment stress RUPTURE properties 
期刊核电用铪材显微组织显示方法探讨被引量:1
《世界有色金属》2017年第13期263-263,265,共2页武晶晶 苏丽凤 马红征 
本文分别采用目前常规的偏光观测法与直接观测法对铪材的平均晶粒度进行评定,发现当被观测样品的显微组织结晶情况较好时,采用常规的偏光观测法和直接观测法评定结果一致;当背观测样品的显微组织结晶情况不好时,采用常规的偏光观测法测...显示全部
关键词:铪板 晶粒度 偏光 
期刊A HfC nanowire point electron source with oxycarbide surface of lower work function for high-brightness and stable field-emission
《纳米研究:英文版》2020年第6期1620-1626,共7页Shuai Tang Jie Tang Ta-wei Chiu Wataru Hayami Jun Uzuhashi Tadakatsu Ohkubo Fumihiko Uesugi Masaki Takeguchi Masanori Mitome Lu-Chang Qin 
This work was supported partially by the NIMS-DENKA Centre of Excellence for Next Generation Materials;A part of this work was also supported by NIMS Microstructural Characterization Platform as a program of“Nanotechnology Platform”of the Ministry of Education,Culture,Sports,Science and Technology(MEXT),Japan.
Electric field-induced point electron source is highly demanded for microscopy,spectroscopy,lithography,X-ray tubes,microwave devices,and data displays.However,the instability in emission current and requirement of ul...显示全部
关键词:hafnium carbide oxycarbide NANOWIRE electron emission field emission 
期刊ICP-AES法测定高温合金中痕量铪的研究被引量:7
《冶金分析》2002年第2期1-5,共5页杨桂香 郑国经 
采用ICP AES法对Hf 2 63 871nm ,2 64 14 1nm ,2 77 3 3 6nm ,2 82 0 2 2nm等灵敏谱线的分析性能进行研究 ,对高温合金中基体及合金元素的干扰情况进行考察 ,选用 2 82 0 2 2nm作为分析线 ,并测定了Ti对Hf的干扰校正系数 ,确定了采...显示全部
关键词:ICP-AES法 高温合金 痕量  
期刊强碱性阴离子交换树脂吸附锆、铪分配系数研究被引量:1
《铀矿冶》2016年第4期288-292,共5页黎志万 刘小龙 张嘉 任萌 李佳 刘锦洪 
通过静态试验法,测试了201×7、D290、D296 3种离子交换树脂吸附硫酸锆(铪)溶液中的锆、铪的两相分配系数Kd(Zr)/Kd(Hf)的比值。试验证明D296大孔阴离子离子交换树脂吸附锆、铪的Kd(Zr)/Kd(Hf)的值最好,好于孔径较小的D29...显示全部
关键词:  温度 分配系数 离子交换树脂 分离 
期刊金属铪的制备方法研究进展被引量:18
《稀有金属》2013年第2期312-319,共8页柳旭 王力军 陈松 吴延科 王鑫 
国家自然科学基金(50674015);北京有色金属研究总院青年基金项目(53141)资助
铪因其优异的性能而具有非常重要的应用价值。总结了国内外金属铪的制备方法和研究现状,主要介绍了热还原法(包括镁还原、钙还原、铝还原)和熔盐电解法(包括传统的熔盐电解及直接熔盐电脱氧)制备铪的工艺流程及研究进展,并对各种方法的...显示全部
关键词: 制备 进展 
期刊Neoproterozoic tectonic geography of the south-east Congo Craton in Zambia as deduced from the age and composition of detrital zircons
《地学前缘:英文版》2019年第6期2045-2061,共17页Brandon L.Alessio Alan S.Collins Peter Siegfried Stijn Glorie Bert De Waele Justin Payne Donnelly B.Archibald 
funded by Australian Research Council Future Fellowship#FT120100340 to A.Collins;supported by a Research Training Program scholarship
The Southern Irumide Belt(SIB)is an orogenic belt consisting of a number of lithologically varied Mesoproterozoic and Neoproterozoic terranes that were thrust upon each other.The belt lies along the southwest margin o...显示全部
关键词:DETRITAL zircon geochronology TECTONICS hafnium isotopes Zambia Southern irumide BELT Irumide BELT 
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