云南高校图书馆联盟文献共享服务平台- POLYCRYSTALLINE

POLYCRYSTALLINE: 作品数：377被引量：383H指数：7; 导出分析报告; 相关作者：张涛李玉梅苏中郭斌王春举更多>>; 相关机构：北京市电加工研究所香港城市大学复旦大学河北工业大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划北京市自然科学基金更多>>

Structure,magnetism and magnetic thermal properties of heavy rare earth Tb1-xTmxFeO3(x=0.00,0.15,0.25) polycrystalline samples被引量：4: 《Journal of Rare Earths》2020年第6期600-605,共6页Xiang Jin Jianjun Zhao Hongwei Chen Fengze Cao Li Cheng Taichao Su Wenxing Wang Jia Liu Yi Lu; the National Natural Science Foundation of China(11164019,51562032,61565013);Inner Mongolia Natural Science Foundation of China(2015MS0101,2015MS0109);Inner Mongolia Institute of Science and Technology Key Project Fund(NJZZ11166,NJZY16237,NJZY12202);Board Project(201522011);Natural Science Foundation of Henan Province(182300410248)。; Tb1-xTmxFeO3(x = 0.00,0.15,0.25) polycrystalline series were synthesized using a solid-state reaction.Our results show that all three prepared samples are in a distorted orthogonal structure and their space group is p...; 关键词：SPIN-FLIP Magnetic entropy change Magnetic refrigeration capacity MAGNETISM Rare earths

Infrared spectroscopy analyses of air-CH_4 or air-CO gas flows interacting with polycrystalline CeO_2, La_2O_3 and Lu_2O_3 oxides: 《Journal of Rare Earths》2012年第8期835-841,共7页Bahcine BAKIZ Lamia BOURJA Abdeljalil BENLHACHEMI Frédéric GUINNETON Madjid ARAB Jean-Raymond GAVARRI; Project supported by the Provence-Alpes-Còte d'Azur Regional Council;the General Council of Var;the agglomeration community of Toulon Provence Mediterranean(ARCUS CERES,2008-2010); A comparative study of reactivity between air-CH4 or air-CO gas flows and CeO2, La2O3 and Lu2O3 rare earth oxides was per- formed using Fourier transform infrared spectroscopy analyses of CO2 gas resulted from the con...; 关键词：lutetium oxide rare earth oxides ELABORATION gas solid interactions infrared spectroscopy

Nonlinear current-voltage characteristics originated from phase segregation and micro-cracks in polycrystalline La_(0.67)Ba_(0.33)MnO_3被引量：1: 《Journal of Rare Earths》2011年第7期716-718,共3页崔益民刘伟潘晖; supported by the National Natural Science Foundation of China (10975103); Polycrystalline La0.67Ba0.33MnO3 bulk samples were annealed in flowing 95%Ar：5%H2 （AH） mixed gas at 973 K for different time respectively. The influence of the annealing time on the current-voltage properties was s...; 关键词：La0.67Ba0.33MnO3 hydrogen annealing phase segregation current-voltage characteristics rare earths

Effect of particle size on the polycrystalline CeB_6 cathode prepared by spark plasma sintering被引量：2: 《Journal of Rare Earths》2011年第6期580-584,共5页包黎红张久兴周身林; Project supported by the National Natural Science Foundation of China (50871002); The full densification polycrystalline cerium hexaboride （CeB6） cathode material was prepared by using the spark plasma sintering （SPS） method in an oxygen free system. The starting precursor nanopowders with an a...; 关键词：cerium hexaboride spark plasma sintering thermionic emission particle size rare earths

Synthesis and luminescent properties of polycrystalline Gd_2(MoO_4)_3:Dy^(3+) for white light-emitting diodes被引量：4: 《Journal of Rare Earths》2009年第5期753-757,共5页薛艳娜肖芬张勤远姜中宏; Project supported by the National Natural Science Foundation of China (50872036); Polycrystalline Gd2(MoO4)3:Dy3+ phosphors have been synthesized by high temperature solid-state reaction method. The phosphors were characterized with X-ray diffractometer, thermogravimetric analysis and different sca...; 关键词：LUMINESCENCE Gd2(MoO4)3:Dy3+ PHOSPHORS light emitting diode rare earths

Nanostructured Yb:GGG polycrystalline powders via gel combustion method被引量：1: 《Journal of Rare Earths》2009年第3期403-406,共4页黄德馨张学建刘景和张丹; supported by the Foundation of Ordnance Science Institute (42001070403); Gadolinium gallium gamet （GGG） nanopowders doped with ytterbium ions （Yb：GGG） were synthesized with citric acid as a fuel via gel combustion method. The optimized conditions for preparing yb^3＋：Gd3Ga5O12 nanopo...; 关键词：yb^3＋：Gd3Ga5O12 gel combustion method NANOPOWDERS POLYCRYSTALLINE rare earths

Charge Ordering and Antiferromagnetic Transition in La_(0.67-x)Pr_xCa_(0.33)MnO_3 (x=0～0.67) Polycrystalline: 《Journal of Rare Earths》2007年第S1期204-206,共3页曹晓明卢遵铭王立恒李养贤; the Nature Science Foundation of Hebei Province (E2006000058);Doctor Foundation of Hebei Univ.Tech.; Polycrystalline samples of La0.67-xPrxCa0.33MnO3(x=0～0.67) were synthesized by a conventional solid state reaction. X-ray diffraction revealed that the samples were all of single phase with an orthorhombic distorted ...; 关键词：charge ordering ANTIFERROMAGNETIC phase separation rare earths

Preparation and Characterization of Y_3Sc_2Ga_3O_(12) Nano-Polycrystalline Powders by Co-Precipitation Method被引量：1: 《Journal of Rare Earths》2007年第3期302-305,共4页苏静张庆礼邵淑芳谷长江万松明殷绍唐; Project supported by the National Natural Science Foundation of China(50472104;60478025); In order to grow high-quality gallium garnet crystals,polycrystalline materials were used as starting materials.YSGG precursor was synthesized by co-precipitation method using aqueous ammonia as a precipitator,and the...; 关键词：co-precipitation method YSGG nano-polycrystalline powder rare earths

Extraordinary Transport Behaviors of La_(0.67)Sr_ ( 0.33)Mn_ (1-x)Cr_xO_3(0.00≤x≤0.30): 《Journal of Rare Earths》2006年第3期332-336,共5页宋启祥刘宁严国清童伟孙阳; ProjectsupportedbytheNationalNaturalScienceFoundationofChina(19934003),theStateKeyProjectofFundamentalResearchofChina(001CB610604)andtheNaturalScienceFoundationoftheAnhuiHigherEducationInstitutionsofChina(2006KJ266B); M-T curves, ρ-T curves and MR-T curves of La0.67Sr0.33Mn1-xCrxO3（0.00≤ x ≤0.30） were studied. Experimental results indicate that the substitution of Cr on Mn sites is impotent in driving Tc, but with an increase ...; 关键词：coherence physics TRANSPORT CMR effect POLYCRYSTALLINE rare earths

Fabrication of Transparent Polycrystalline Yttria Ceramics by Combination of SPS and HIP被引量：3: 《Journal of Rare Earths》2006年第z2期222-224,共3页何明生李建保林红郭钢锋梁龙; Project supported by the National High Technology Research and Development Program of China (2004AA332060); Transparent polyerystalline yttria is a promising optical ceramics with excellent physical and chemical properties. A commercial yttria powder with a mean particle size of 1.0μm and narrow size distribution was selec...; 关键词：transparent ceramics YTTRIA TRANSMITTANCE SPS/HIP rare earths

POLYCRYSTALLINE