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zr
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     Synthesis and Crystal Structure of Heterodimetallic Complexes[Cp_2V(μ-η~2∶η~4-PhC_4Ph)MCp_2′](M=Ti,Zr;Cp′=C_5H_5,C_5H_4SiMe_3)
     钛钒异核双金属配合物[Cp_2V(μ-η~2:η~4-PhC_4Ph)MCp_2′](M=Ti,Zr;Cp′=C_5H_5,C_5H_4SiMe_3)的合成与表征
短句来源
     Novel Heterometallic Complexes [Cp_2V(μ-η~2:η~4-butadiyne)MCp_2] (M=Ti, Zr)
     新颖结构的钛钒异核双金属配合物[Cp_2V(μ-η~2:η~4PhC_4Ph)MCp_2](M=Ti,Zr)
短句来源
     Ba(Zr0.3Ti0.7)O3(BZT) thin films with different thicknesses were prepared by sol-gel processing on Pt/Ti/SiO2/Si and LaNiO3/Pt/Ti/SiO2/Si substrates.
     用溶胶-凝胶法分别在Pt/Ti/SiO2/Si和LaNiO3/Pt/Ti/SiO2/Si衬底上制备了钛酸钡[Ba(Zr0.3Ti0.7)O3,BZT]薄膜。
短句来源
     Effects of Cerium/Zirconium Ratio on the Property of Low Noble Metal Pt+Rh/Ce_(0.3+x)Zr_(0.6-x)Y_(0.1)O_(1.95)+Al_2O_3 Three Way Catalysts
     铈比对低贵金属Pt+Rh/Ce_(0.3+x)Zr_(0.6-x)Y_(0.1)O_(1.95)+Al_2O_3三效催化剂性能的影响
短句来源
     Effects of Pr6O11 doping on the properties of Pb(Mn1/3Sb2/3)0.05Zr0.47Ti0.48 O3 (lead antimony-manganese zirconate titanate, PMSZT) ceramics were studied.
     探讨了Pr6O11掺杂对锑锰钛酸铅Pb(Mn1/3Sb2/3)0.05Zr0.47Ti0.48O3(leadantimony-manganesezirconatetitanate,PMSZT)压电陶瓷温度稳定性的影响。
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  zr
     Standard error of no fit error for Z R relation can't be neglected because it was about 0.215;
     ZR关系的不可拟合误差之标准差约为0.215,因而不容忽视。
短句来源
     High error of observed intensity of rain is dominant factor that using ASP method to get the parameter. Parameter A 0,A H and A DR of Z R relation of exponent function is 0.016 84,0.096 and -0.416 5,respectively.
     对指数函数形式的ZR关系来说,其参数因子A0,AH及ADR分别为0.01684,0.096和-0.4165。
短句来源
     The Z R relation for precipitation estimating and all error were researched.
     详细地定量分析了降水估测中的ZR关系和各类误差。
短句来源
     The results are as following:There are not obvious difference between exponent and power function for Z R relation;
     由此可知,指数函数形式与幂函数形式的ZR关系之间无明显差别;
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  “zr”译为未确定词的双语例句
     Study and Application of High-Property Cu-Cr(Zr,Mg) In Situ Composite
     高性能Cu-Cr(Zr、Mg)自生复合材料研究及其应用
短句来源
     Study on the ~(95)Zr and Radioresistant Bacteria in Contaminated Environments
     污染环境中~(95)Zr和耐辐射奇球菌的研究
短句来源
     Biocompatibility of Activated Low Modulus Ti-29Nb-13Ta-4.6Zr and Ti-Nb-Zr-Sn Alloy
     活化低模量T-i-29Nb-13Ta-4.6Zr和Ti-Nb-Zr-Sn系合金的生物相容性
短句来源
     Structure and Properties Study on La(NiMMn)_(5+x),Ti-Mo,Ti(Zr)/Mn_2 Base Laves Phase Hydrogen Storage Alloys
     La(NiMnM)_(5+x)、Ti-Mo和Ti(Zr)/Mn_2基Laves相系列储氢合金的结构与性能研究
短句来源
     Catalytic Properties and Structure of CeO_2 and Ce_(0.5)Zr_(0.5)O_2-Supported CuO or PdO Catalysts
     CeO_2和Ce_(0.5)Zr_(0.5)O_2负载CuO,PdO催化剂的结构及催化性能研究
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  zr
Lead zirconium titanate (PZT) films (Zr/Ti=45:55) with a high dielectric constant are prepared successfully on the low-resistance Si substrate in sol-gel dip-coating process with PT film used as the buffer layer.
      
The solid acids were prepared by mounting H2SO4 on TiO2 · nH2O and Zr(OH)4, respectively, followed by calcining at 823K.
      
To deal with this contradictory situation, insolvable zirconium tricarboxybutylphosphonate (Zr(PBTC)) powder was employed to make a composite with SPEEK polymer in an attempt to improve temperature tolerance of the membranes.
      
SPEEK/Zr(PBTC) composite membranes were obtained by casting a homogeneous mixture of Zr(PBTC) and SPEEK in N,N-dimethylacetamide on a glass plate and then evaporating the solvent at 60°C.
      
Results showed significant improvement not only in temperature tolerance, but also in methanol resistance of the SPEEK/Zr(PBTC) composite membranes.
      
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Ortho nitrobenzene sulfinic acid precipitates zirconium quantitatively from hydrochloric acid solutions not stronger than 0.6N. Sixty ml of a warm 2% solution of the reagent is slowly added to 40 ml of the zirconium solution containing 40 millimoles of hydrochloric acid heated to about 70℃. After keeping at 60-70℃ for one half hour and cooling, the precipitate is filtered out and washed with 0.1 N hydrochloric acid. It has the composition of Zr (C6H4NO2SO2)2 after drying at 110-120℃ for two hours. The...

Ortho nitrobenzene sulfinic acid precipitates zirconium quantitatively from hydrochloric acid solutions not stronger than 0.6N. Sixty ml of a warm 2% solution of the reagent is slowly added to 40 ml of the zirconium solution containing 40 millimoles of hydrochloric acid heated to about 70℃. After keeping at 60-70℃ for one half hour and cooling, the precipitate is filtered out and washed with 0.1 N hydrochloric acid. It has the composition of Zr (C6H4NO2SO2)2 after drying at 110-120℃ for two hours. The precipitate can be weighed as such or as zirconium oxide after ignition.O-nitrobenzene sulfinic acid surpasses its mother compound benzene sulfinic acid in reaction selectivity. Under the conditions mentioned above, quadrivalent titanium and tin which form precipitates with benzene sulfinic acid, are not precipitated by the orth nitro compound. The increase in selectivity apparently attributed to steric effect; the corresponding para nitro derivative behaves like benzene sulfinic acid itself. Small amounts of titanium and tin do not interfere the determination of zirconium, but they coprecipitate with the zirconium compound when present in appreciable amounts; in such cases double precipitation is necessary. Good results are obtained for the direct determination of zirconium in the presence of ferric, uranyl, aluminum, cerous and manganous ions. Thorium is the only metallic element studied that is also precipitated by the reagent and seriously interferes the determination of zirconium. Satisfactory results can be obtained after precipitation of thorium with oxalic acid and oxidizing the excess of the latter with potassium permanganate. Sulfate, oxalate, tartrate, citrate, fluoride and large amounts of acetate hinder the complete precipitation of zirconium.

1.邻-硝基苯亚磺酸在0.4N盐酸溶液中与锆离子生成淡黄色絮状沉淀。沉淀不溶于水或0.1N的盐酸,具有恒定的组成ZrO(C_6H_4NO_2SO_2)_2。在110—120℃烘干后可直接 称重,也可以灼烧成ZrO_2后称重。 2.在实验条件下,除锆外只有钍离子与试剂生成沉淀,四价钛、锡离子含量低(<5毫克)时不干扰,含量大时有共沉淀现象。 3.有钍存在时,可以先用草酸分离钍,用高锰酸钾破坏滤液中的草酸,再用邻-硝基苯亚磺酸测定锆。 4.与苯亚磺酸一样,Fe~(+3)、Ce~(+3)、Mn~(+2)、UO_2~(+2)、Al_(+3)等存在无干扰。 5.邻-硝基苯亚磺酸的分析性能比苯亚磺酸好,邻位硝基的存在起了决定性的作用。

Monazite sand is digested with H_2SO_4. The acid extract is successfully treated by sodium pyrophosphate process and sodium fluoride process, when the acidity of the solution during the fluoride precipitation of thorium is above 2N. Thorium fluoride, spectral free from Ti, Zr, Hf, Fe, P and rare earth metals, can be obtained. Ce is also detected by chemical method and the result is negative. The recorery of thorium is about 95%.

将硫酸分解独居石的提取液连续用焦磷酸钠法与氟化钠法处理。当用氟化纳沉淀钍时,溶液的酸度在2N以上,可制得钛,锆,铪,铁,磷及希土元素光谱纯的氟化钍,钍的回收率约95%。

~~Ln_2O_3+2ZrO_2, Ln—Ce Pr_2Zr_2O_7 Pr_2O_3-ZrO_2.Pr_2Zr_2O_7 Fd3m-O_h~7 Z=8. Ce_2Zr_O_7.

本文借助于综合热分析及X-射线结构分析研究了氢氧化锆在加热时的特性,发现有氧化锆新的介安的立方变体存在。 随后研究了组成为Ln_2O_3+2ZrO_2的稀土元素和锆的共同沉淀氢氧化合物在加热时的特性,这里Ln指Ce和Pr,发现了在Pr_2O_3—ZrO_2系统中的新化合物Pr_2Zr_2O_7。锆酸鐠Pr_2Zr_2O_7具有黄绿石型的立方结构。空间羣:Fd3m-O_h~7,2=8。此外,证实了有黄绿石型结构的化合物Ce_2Zr_2O_7存在。 文中列举了有关锆酸铈及锆酸镨的某些物理—化学性质的资料。

 
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