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precursor powder    
相关语句
  前驱体粉末
    Preparation of Bi-Based Superconductor Precursor Powder by a Spray-Dry+Fluidized Bed Denitration Technology
    喷雾干燥-流化床脱硝法制备Bi系超导前驱体粉末
短句来源
    In this study, the precursor powder was prepared by mixing ammonium metatungstate and cobalt nitrate at the molecular level in distilled water and then spray-dried to form CoWO1/WO3 composite oxides. Through continuous reduction/carburization gas-solid reaction in a fluidized bed reactor in H2/CH4/ CO-/N2, the precursor was converted to WC-Co nanocrystallme composite powder.
    该技术将偏钨酸铵和水合硝酸钴以分子级水平混合,经喷雾干燥制备出CoWO_4/WO_3复合氧化物前驱体粉末,然后将前驱体粉末置于流态化反应炉中,在H_2/CH_4/CO_2/N_2气氛下经过连续的还原、碳化、调碳过程,得到无缺碳相的纳米晶WC-Co复合粉末。
短句来源
    Therefore,ZrW_2O_8 precursor powder was synthesized by co-precipitation at first,then the precursor powders were preheated at low temperature before pure Zirconium tungstate(ZrW_2O_8) was produced at 1200℃ for 2h,finally ZrW_2O_8/6013Al composites were prepared by pressure infiltration.
    先用共沉淀法合成ZrW2O8化合物前驱体粉末,再经低温热处理以及1 200℃、2 h复合成高纯度的ZrW2O8化合物,最后用压力熔体浸渗法制备成ZrW2O8/6013Al复合材料。
短句来源
    Dissolving V_2O_5 in organic acid solution,the amorphous powder precursor which contained vanadium was obtained by spray drying,and the nanometer V_8C_7 powder was prepared through reduction/carbonization of the precursor powder.
    将V2O5溶解于有机酸溶液中,通过喷雾干燥制得非晶态含钒的粉末前驱体,将前驱体粉末还原/碳化后得到V8C7粉末。
短句来源
    when the temperature rises to 600℃,all the precursor powder is transformed into the composite powder in which V_2O_3 mixes with free carbon homogeneously atom-level;
    当温度升高到600℃时,前驱体粉末全部转变为V2O3与游离C原子级别混合均匀的复合粉末;
短句来源
更多       
  前驱粉
    Research of Match between Precursor Powder and Heat Treatment for Bi2223/Ag Superconducting Strip
    Bi-2223/Ag超导带材前驱粉与热处理的匹配问题
短句来源
    The matter of match between precursor powder and consequent heat treatment for Bi-2223/Ag superconducting strip was reported.
    研究了Bi-2223/Ag高温超导带材的前驱粉与后续热处理工艺之间的匹配问题。
短句来源
    Three kinds of different precursor powder A,B, and C were used for experiment, in which A is pyrolytic spray powder with unique component, B and C are composite powder consisted of 2212 and CaCu Oy treated by 800 ℃, 3 h and 830 ℃, 10 h respectively.
    实验采用A,B,C3种不同的前驱粉。 A粉是成分配比为2223的喷雾热分解单粉,B粉和C粉都是2212加CaCuOy组分的2223双粉。
短句来源
    FABRICATION OF THE Bi-2223 PRECURSOR POWDER BY LIQUID-MIXED PROCESS
    液相混合铋系超导前驱粉体工艺研究
短句来源
    The influence of the phase assemblag e of precursor powder on microstructures and the properties of Bi (Pb)-2223/Ag tapes has been studied. The phase assemblage was controlled by changing the final c alcination temperature.
    通过改变粉末的最终烧结温度制备出不同相组成的前驱粉。 研究了前驱粉的相组成对Bi(Pb)-2223/Ag带材性能和带材微观结构的影响;
短句来源
更多       
  前驱粉末
    EFFECTS OF THE PRECURSOR POWDER ON CRITICAL CURRENT DENSITY OF (Bi,Pb)-2223 TAPES
    前驱粉末对(Bi,Pb)-2223/Ag超导带材临界电流密度的影响
短句来源
    Because properties of Bi system superconducting precursor powder have significant influence on tape fabrication process, so many groups inside and outside of china pay attention to preparing high quality precursor powder.
    由于铋系超导前驱粉末特性 ,在带材制备过程中具有的重要影响 ,使得国内外非常重视制备高性能的超导前驱粉末 .
短句来源
    In this work the main preparation methods of HTS precursor powder have been discussed and evaluated in detail, and we bring forward a route that is suited for mass produced Bi system HTS precursor, we think spray pyrolysis process will be good for realization of mass fabrication Bi system HTS tapes.
    本文就铋系超导体的主要的制粉方法 ,进行了较为详细的讨论、评述 ,并提出了适合于工程化制备铋系前驱体粉末的工艺路线 ,认为喷雾热解法制备超导前驱粉末将有利于铋系超导线材批量化的实现
短句来源
    The microstructure was observed by SEM. SEM shows that there are more 2212, (Sr,Ca)-2CuO-3 and CuO in the tapes. Some secondary phases come from the precursor powder.
    通过SEM观察三种带材的微观组织发现 ,样品中的杂相 (第二相 )主要是残留的 2 2 1 2相 ,(Sr,Ca) 2 CuO3 相和CuO相 ,这些残留相的生成与前驱粉末中各相比例的失衡有关 .
短句来源
    The result indicates thathomogeneous and accurate rawpowder can be up-scalingprepared,withthe precursor powder obtained by differentspray-pyrolysis and the same heat treatment ,then shortHTStapes are prepared with the same PITprocess ,theIcof this tape is upto 25 A.
    实验表明,采用不同工艺参数的喷雾热粉解法,能够工程化制备成分准确、均匀的超导初级粉末,选择相同的后处理工艺制备成前驱粉末,再经相同的PIT工艺制备短样带材,获得了超过25 A的临界电流。
短句来源
更多       
  前驱体粉末
    Preparation of Bi-Based Superconductor Precursor Powder by a Spray-Dry+Fluidized Bed Denitration Technology
    喷雾干燥-流化床脱硝法制备Bi系超导前驱体粉末
短句来源
    In this study, the precursor powder was prepared by mixing ammonium metatungstate and cobalt nitrate at the molecular level in distilled water and then spray-dried to form CoWO1/WO3 composite oxides. Through continuous reduction/carburization gas-solid reaction in a fluidized bed reactor in H2/CH4/ CO-/N2, the precursor was converted to WC-Co nanocrystallme composite powder.
    该技术将偏钨酸铵和水合硝酸钴以分子级水平混合,经喷雾干燥制备出CoWO_4/WO_3复合氧化物前驱体粉末,然后将前驱体粉末置于流态化反应炉中,在H_2/CH_4/CO_2/N_2气氛下经过连续的还原、碳化、调碳过程,得到无缺碳相的纳米晶WC-Co复合粉末。
短句来源
    Therefore,ZrW_2O_8 precursor powder was synthesized by co-precipitation at first,then the precursor powders were preheated at low temperature before pure Zirconium tungstate(ZrW_2O_8) was produced at 1200℃ for 2h,finally ZrW_2O_8/6013Al composites were prepared by pressure infiltration.
    先用共沉淀法合成ZrW2O8化合物前驱体粉末,再经低温热处理以及1 200℃、2 h复合成高纯度的ZrW2O8化合物,最后用压力熔体浸渗法制备成ZrW2O8/6013Al复合材料。
短句来源
    Dissolving V_2O_5 in organic acid solution,the amorphous powder precursor which contained vanadium was obtained by spray drying,and the nanometer V_8C_7 powder was prepared through reduction/carbonization of the precursor powder.
    将V2O5溶解于有机酸溶液中,通过喷雾干燥制得非晶态含钒的粉末前驱体,将前驱体粉末还原/碳化后得到V8C7粉末。
短句来源
    when the temperature rises to 600℃,all the precursor powder is transformed into the composite powder in which V_2O_3 mixes with free carbon homogeneously atom-level;
    当温度升高到600℃时,前驱体粉末全部转变为V2O3与游离C原子级别混合均匀的复合粉末;
短句来源
更多       

 

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  precursor powder
The corecipitated precursor powder has been used for production of 20- 30 meter long Ag-clad tapes.
      
However, this effect was not seen in the case of the melt quenched precursor powder.
      
The precursor powder prepared by a modified coprecipitation exhibited improved properties in comparison to other routes.
      
Influences of the precursor powder on the microstructure of HTSC-tapes
      
X-ray diffraction and IR spectroscopy were used to study the transformation from precursor powder into a crystalline monoclinic phase.
      
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