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zr
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    The La-doped Pb(Zr,Ti)O3(lead lanthanum zirconate titanate,PLZT)powder was prepared by the multi-dimensional vibra-tion(MDV)milling for 10 h via the mechanical alloying(MA)synthesis and using the mixed powders of PbO,La2O3,ZrO2 and TiO2 as raw materials.
    以 PbO,La2O3,ZrO2以及 TiO2的混合粉末为原料,由多维振动球磨 10 h,机械合金化合成了镧掺杂钛酸铅(lead lanthanum zirconate titanate, PLZT)粉末。
短句来源
    Present research status of separation technologies and application prospects of Zr and Hf
    与铪分离技术的研究现状及应用前景
短句来源
    Preparation of Ultra-fine Zr Powder by High Energy Ball Milling
    高能球磨法制备吸气材料用超细
短句来源
    Application of Tube Type Centrifugal Extractor on Zr & Hf Separation
    圆筒式离心萃取器在铪分离中的应用
短句来源
    Impurity Control of Zr Alloyed Low Cabon HSLA Steel
    处理低碳低合金高强度钢的杂质控制
短句来源
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    The La-doped Pb(Zr,Ti)O3(lead lanthanum zirconate titanate,PLZT)powder was prepared by the multi-dimensional vibra-tion(MDV)milling for 10 h via the mechanical alloying(MA)synthesis and using the mixed powders of PbO,La2O3,ZrO2 and TiO2 as raw materials.
    以 PbO,La2O3,ZrO2以及 TiO2的混合粉末为原料,由多维振动球磨 10 h,机械合金化合成了镧掺杂钛酸铅(lead lanthanum zirconate titanate, PLZT)粉末。
短句来源
    Present research status of separation technologies and application prospects of Zr and Hf
    与铪分离技术的研究现状及应用前景
短句来源
    Preparation of Ultra-fine Zr Powder by High Energy Ball Milling
    高能球磨法制备吸气材料用超细
短句来源
    Application of Tube Type Centrifugal Extractor on Zr & Hf Separation
    圆筒式离心萃取器在铪分离中的应用
短句来源
    Impurity Control of Zr Alloyed Low Cabon HSLA Steel
    处理低碳低合金高强度钢的杂质控制
短句来源
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  “zr”译为未确定词的双语例句
    The Behavior of the Third Phase from Solvent Extraction of Zr(IY)by Tributyl Phosphate in Keroseene from Concentrated Acid Solutions
    磷酸三丁酯-煤油从浓酸溶液中萃取Zr的第三相行为
短句来源
    PREPARATION OF SUPERFINE POWDER Pb(Zr.Ti)O_3 BY METAL-EDTA COMPLEXES METHOD
    金属-EDTA螯合物法制备Pb(Zr,Ti)O_3超细粉的研究
短句来源
    ON IN SITU PREMRATION OF (Ti, Zr)C SOLID-SOLUTION POWDER BY WET-CHEMICAL METHOD
    湿化学法原位制备(Ti,Zr)C固溶粉体
短句来源
    Effects of Ga,Zr on the Anisotropy of HDDR Nd(Fe,Co)B Powders
    Ga、Zr对HDDRNd(Fe,Co)B磁粉各向异性的影响
短句来源
    The Microstructure and Hardness and Their Relationship for Gas atomized Al Fe Cu V Si Ni Ce Zr Alloy Powder
    气体雾化Al-Fe-Cu-V-Si-Ni-Ce-Zr合金粉末的组织和硬度及其关系
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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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ESR is one of the most effective means of removing non-metallic inclusions from steel. Much controversy exists regarding the mechanism of slag removal in ESR process.The ESR process consists of three stages: 1) Formation of dropets on the electrode tip; 2) Droplets falling through the slag; 3) Collection of the metal in a pool at the top of the ingot.In order to find out which is the main step in the refining process, samples are taken from the solid electrode, the molten film on the electrode tip, metal droplets...

ESR is one of the most effective means of removing non-metallic inclusions from steel. Much controversy exists regarding the mechanism of slag removal in ESR process.The ESR process consists of three stages: 1) Formation of dropets on the electrode tip; 2) Droplets falling through the slag; 3) Collection of the metal in a pool at the top of the ingot.In order to find out which is the main step in the refining process, samples are taken from the solid electrode, the molten film on the electrode tip, metal droplets in the slag layer and the final ingot, and quantitative determination of inclusions made by metallographic, chemical and radioisoto pic (indicator zr~((?)5)O_2) methods.From the results obtained it is concluded that the removal of non-metallic Inclusions occurred mainly at the electrode tip.Results of experiments on industrial furnaces have confirmed the above conclusion.

在现代电冶金中,电渣重熔是有效地去除钢中非金属夹杂物主要手段之一。但电渣重熔去除夹杂物机理的研究还存在着分岐。电渣重熔有三个阶段:1.电极端头熔滴形成期;2.熔滴滴落穿过渣池阶段;3.铸锭顶端液态金属熔池凝固阶段。为了查明哪一阶段是精炼主要阶段。我们制取了自耗电极原始金属;电极端头金属熔化薄膜;渣池中的金属熔滴及凝固铸锭金属试样。用金相法,化学分析法及放射性同位素(Zr~(95)O_2)方法测定各阶段提纯效果及夹杂物去向。研究得出结论:电渣重熔去除钢中非金属夹杂物主要发生在电极熔化端头。上述结论在工业试验中得到进一步验证。

The technological condition of separating U and Zr in sulphuric acid solution (3-5N) were studied. The synergistic extraction system of P291+TRPO offered high selectivity for extraction of uranium has been found. The separation factor of U and Zr can reach 10~3. According to the optimum separation conditions, the cascadeconnected batch simulating experiment with ordinary laboratory separatory funnels and the small-scale experiment with mixer-setter were performed. The technological process of separation...

The technological condition of separating U and Zr in sulphuric acid solution (3-5N) were studied. The synergistic extraction system of P291+TRPO offered high selectivity for extraction of uranium has been found. The separation factor of U and Zr can reach 10~3. According to the optimum separation conditions, the cascadeconnected batch simulating experiment with ordinary laboratory separatory funnels and the small-scale experiment with mixer-setter were performed. The technological process of separation and recovery of uranium from zircon has been developed.

研究了在3~5NH_2SO_4介质中萃取分离铀、锆的工艺条件,发现P291+TRPO协萃体系对铀具有高的选择性,单级分离系数βu/zr可达10~3。在研究铀,锆分离工艺条件的基础上,进行了串级实验和小型混合澄清槽的连续流动试验,并建立了从锆英石中分离和回收铀的相应工艺流程

The variations of the ratios(n_(Fe))/(n_(Zr)),(n_(Hf))/(n_(Zr)),(n_(Si))/(n_(Zr))for zircon,intermediate and Final products in metallurgy of sponge zirconium demonstrated that Fe behaved rather differently from other impurities such as Hf,Si and Al.Iron could“sneak into”sponge zirconium in the final reduction procedure of ZrCl_(4(g)) with metallic magnesium.It has long been believed that interaction between reduced sponge zirconium and stainless steel container was the main cause responsible...

The variations of the ratios(n_(Fe))/(n_(Zr)),(n_(Hf))/(n_(Zr)),(n_(Si))/(n_(Zr))for zircon,intermediate and Final products in metallurgy of sponge zirconium demonstrated that Fe behaved rather differently from other impurities such as Hf,Si and Al.Iron could“sneak into”sponge zirconium in the final reduction procedure of ZrCl_(4(g)) with metallic magnesium.It has long been believed that interaction between reduced sponge zirconium and stainless steel container was the main cause responsible for the super-contamination of sponge zirconium by iron.However,using zirconium containers instead of stainless steel ones could not stop sponge zirconium being super-contaminated by iron. Thermodynamic calculations based on operational data revealed the presence of transporting process of iron chlorides through gas-phase into the reduction container where iron was reduced and contaminated the sponge zirconium.Iron chlorides were produced by reactions taking place between the ZrCl_4 vapor and iron oxide film on surfaces of containers as well as reactors.In addition,the product hydrolyzed,ZroCl· 8H_2O entered the reactors would be responsible for the formation of iron oxide film on these surfaces.

考查了海绵锆生产过程中(nFe)/(nzr)、(nHf)/(mzr)、(nsi)/(nzr)及(nAl)/(nzr)的变化,表明杂质铁的行为与其他杂质如铪、硅及铝不同。在四氯化锆用镁还原操作中,铁有再混入的过程。生产试验结果表明,海绵锆中杂质铁的固定来源一原料带入及海绵锆与不锈钢坩埚壁的交互作用一不是导致铁含量出格的原因。使用锆坩埚未能控制铁对海绵锆的沾污。以某厂生产实际资料为依据所作的化学热力学计算指出,在一定条件下铁的气相迁移是造成海绵锆中铁含量出格的原因;引起铁的气相迁移过程的内在因素是还原炉胆内的铁锈及装入炉中的水解料(ZrOCl_2·8H_2O)。在注意消除上述两因素后,因杂质铁含量出格而造成海绵锆的不合格率由20.5%下降到2%。

 
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