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superconducting precursor powder
相关语句
  超导前驱粉的
     The oxygen release amount of(Bi,Pb)_2Sr_2Ca_2Cu_3O_x superconducting precursor powder was quantitatively calculated by means of oxygen partial pressure measurement method and its effect on the critical current density J_c of Bi-2223 tape was investigated.
     利用氧分压分析法对(Bi,Pb)2Sr2Ca2Cu3Ox超导前驱粉的放氧量进行了定量计算,并考察了放氧量对Bi-2223带材临界电流密度Jc的影响。
短句来源
  超导前驱粉性
     Performance Evaluation of(Bi,Pb)_2Sr_2Ca_2Cu_3O_x Superconducting Precursor Powder by Analysis of Oxygen Partial Pressure
     氧分压分析法鉴定(Bi,Pb)_2Sr_2Ca_2Cu_3O_x超导前驱粉性
短句来源
  “superconducting precursor powder”译为未确定词的双语例句
     EVALUATION ABOUT PREPARATION PROCESS OF Bi-SYSTEM SUPERCONDUCTING PRECURSOR POWDER
     铋系超导前驱粉末的制备工艺评述
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
  相似匹配句对
     EVALUATION ABOUT PREPARATION PROCESS OF Bi-SYSTEM SUPERCONDUCTING PRECURSOR POWDER
     铋系超导前驱粉末的制备工艺评述
短句来源
     The morphology of tungsten powder inherit that of its precursor powder.
     所制得的钨粉形貌完全遗传了其前驱体的形貌,分别得到球状和层状钨粉。 球状钨粉由纳米颗粒聚集而成。
短句来源
     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
     Precursor Synthesis of Fibrillar Nanocrystalline Nickel Powder
     纤维状纳米镍粉前驱体的合成
短句来源
     In addition, the homogeneity of the precursor powder, the particle size and superconducting property were compared to the powders prepared by solid mixed process.
     详细研究了钙铜溶胶体系的胶凝工艺 ,2 2 1 2悬浮体系的稳定性以及Ca2 CuO3成相温区等工艺参数 ,并利用XRD ,SEM等分析手段 ,研究了粉体的粒度分布 ,形貌 ,相组成及其均匀性
短句来源
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Presently powder in tube process(PIT) is the main method to fabricate bismuth system HTS tapes. If we mass produced HTS tapes, we should possess a powder preparation process which ran with low cost, which is stable and reliable, whose product have high quality and large mass. 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....

Presently powder in tube process(PIT) is the main method to fabricate bismuth system HTS tapes. If we mass produced HTS tapes, we should possess a powder preparation process which ran with low cost, which is stable and reliable, whose product have high quality and large mass. 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. Different powder has different chemical composition, different phases assemblage, different morphology and particle size distribution, which is decided by chemical stoichiometry, preparation method and heat treatment process. 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.

前驱粉末装管法 (PIT)是目前铋系高温超导带材制备的主要方法 .要工程化生产超导带材 ,需要运行成本低 ,产品质量高 ,生产批量大 ,稳定可靠的粉末生产工艺 .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 .不同的粉末具有不同的化学成分、相组成和形貌粒度 ,这取决于采用的起始公称化学成分 ,制备方法 ,和后处理烧结工艺 .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

The oxygen release amount of(Bi,Pb)_2Sr_2Ca_2Cu_3O_x superconducting precursor powder was quantitatively calculated by means of oxygen partial pressure measurement method and its effect on the critical current density J_c of Bi-2223 tape was investigated.The results show that the oxygen release amount increased with increasing the amount of Pb-rich phases Ca_2PbO_4(CP)and(Pb,Bi)_3Sr_2Ca_2CuO_y(3221)or with decreasing the ratio of CP3221.The variation of J_c is corresponding with the oxygen release amount.J_c...

The oxygen release amount of(Bi,Pb)_2Sr_2Ca_2Cu_3O_x superconducting precursor powder was quantitatively calculated by means of oxygen partial pressure measurement method and its effect on the critical current density J_c of Bi-2223 tape was investigated.The results show that the oxygen release amount increased with increasing the amount of Pb-rich phases Ca_2PbO_4(CP)and(Pb,Bi)_3Sr_2Ca_2CuO_y(3221)or with decreasing the ratio of CP3221.The variation of J_c is corresponding with the oxygen release amount.J_c attains a maximum value when the oxygen release amount reaches a 0.32 mL/g,too high or too lower an oxygen release amount would,however,be detrimental to J_c.Correspondingly,the oxygen release amount may serve to evaluate the performance of the precursor powder.

利用氧分压分析法对(Bi,Pb)2Sr2Ca2Cu3Ox超导前驱粉的放氧量进行了定量计算,并考察了放氧量对Bi-2223带材临界电流密度Jc的影响。结果表明,前驱粉中富Pb相Ca2PbO4(简称CP)和(Pb,Bi)3Sr2Ca2CuOy(简称3221)的总量增加或CP相与3221相含量的比(CP∶3221)下降,都导致放氧量增加。放氧量与Jc之间存在直接对应关系:当放氧量为0.32mL/g时带材的Jc最高,放氧量过高或过低均对Jc不利。相应地,可以通过定量计算前驱粉的放氧量预测带材的Jc,进而鉴定前驱粉性能。

 
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