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ptc现象
相关语句
  ptc phenomenon
     Mechanism of the PTC phenomenon for Carbon Mixed Black polyethylene
     掺碳黑聚乙烯PTC现象的一种相变机理
短句来源
     The advantage and defect of each model is indicated. Research about mechanism of PTC phenomenon and perfection to related model is a main task in the field.
     指出了各种模型的特点与缺陷,认为进一步研究PTC现象的机理,完善相应的理论模型,是该领域中一项长期的工作。
短句来源
  ptc phenomena
     Recent Progress in Research on PTC Phenomena
     BaTiO_3半导瓷PTC现象的机理研究进展
短句来源
  ptc abnormal phenomenon
     And there is a second PTC abnormal phenomenon in the(Ba, Sr) TiO_3 ceramics when the amount of Sr is 0.10mol, Sb_2O_3 0.135wt.%,MnO_2 0.04 and 0.06wt.%, SiO_2 0.38 wt.% and Al_2O_3 0.215wt%
     当SrO量0.10 mol、Sb_2O_3 0.135wt.%、MnO_2 0.04和0.06wt.%、SiO_20.38wt.%以及Al_2O_3 0.215wt.%时,(Ba,Sr)TiO_3半导瓷具有二次PTC现象
短句来源
  “ptc现象”译为未确定词的双语例句
     THEORY STUDY ADVANCE ABOUT PTC
     有关PTC现象的理论研究进展
短句来源
     The development of theory study on PTC
     PTC现象的理论研究进展
短句来源
     the result showed: 1、the PTC intension of HIPS/CB is low, and the PTC transform temperature is closed to the glass transform temperature.
     研究结果如下: 1、非晶HIPS/CB 体系的PTC 强度较弱,其PTC 转变温度与HIPS 的玻璃化转变温度较为接近,同时体积膨胀-电阻率曲线与PTC 曲线较为相似,可认为其PTC 效应与体积膨胀间有一定的关系,但不足以单独解释PTC 现象。
短句来源
     In theory, the mechanism of electric current conduction in the polymer materials have been studies for a long time, but there is still not a satisfactory explanation for PTC effect and conductivity and some of conductive mechanism still remain controversial.
     在理论方面,虽然聚合物基PTC材料的导电机理已被研究了很长时间,但是对PTC现象和导电性仍不能获得满意的解释,一些导电机理还存在相互矛盾的现象。
短句来源
     In this paper,the mechanism of positive temperature coefficient (PTC) effect is investigated by using carbon black filled low density polyethylene and ethylene-vinyl acetate copoly-mer. The influence of carbon black content on the resistivity at room temperature and PTC effect as well as the influence of crosslinking on electrical reproducibility are also discussed.
     本文以低密度聚乙烯(LDPE)和乙烯-醋酸乙烯酯共聚物(EVA)为基材,炭黑(CB)为导电微粒,探讨了聚合物-炭黑复合物的结构对正温度系数效应(PTC)增强与减弱的影响和炭黑含量与PTC效应的关系以及交联结构对PTC现象的稳定作用.
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    The characteristics of the PTC resistors with Mn-doped (Ba, Sr) TiO_3 base were studied. The change of Curie temperatureTc and the positive tomperature coefficient ar of these PTC resistors with different amounts of SrO within the (Ba, Sr) TiO_3 ceramics were discussed. The experiments show that the firing temperature and the firing time deeply affect the characteristics of the PTC resistors with(Ba, Sr) TiO_3 as base. And there is a second PTC abnormal phenomenon in the(Ba, Sr) TiO_3 ceramics when the amount...

    The characteristics of the PTC resistors with Mn-doped (Ba, Sr) TiO_3 base were studied. The change of Curie temperatureTc and the positive tomperature coefficient ar of these PTC resistors with different amounts of SrO within the (Ba, Sr) TiO_3 ceramics were discussed. The experiments show that the firing temperature and the firing time deeply affect the characteristics of the PTC resistors with(Ba, Sr) TiO_3 as base. And there is a second PTC abnormal phenomenon in the(Ba, Sr) TiO_3 ceramics when the amount of Sr is 0.10mol, Sb_2O_3 0.135wt.%,MnO_2 0.04 and 0.06wt.%, SiO_2 0.38 wt.% and Al_2O_3 0.215wt%

    本文研究了掺锰(Ba,Sr)TiO_3系PTC热敏电阻瓷的性质。讨论了不同SrO量的Tc和ar的变化。烧成温度和保温时间对(Ba,Sr)TiO_3瓷的PTC特性有重大影响。当SrO量0.10 mol、Sb_2O_3 0.135wt.%、MnO_2 0.04和0.06wt.%、SiO_20.38wt.%以及Al_2O_3 0.215wt.%时,(Ba,Sr)TiO_3半导瓷具有二次PTC现象

    In this paper,the mechanism of positive temperature coefficient (PTC) effect is investigated by using carbon black filled low density polyethylene and ethylene-vinyl acetate copoly-mer.The influence of carbon black content on the resistivity at room temperature and PTC effect as well as the influence of crosslinking on electrical reproducibility are also discussed.

    本文以低密度聚乙烯(LDPE)和乙烯-醋酸乙烯酯共聚物(EVA)为基材,炭黑(CB)为导电微粒,探讨了聚合物-炭黑复合物的结构对正温度系数效应(PTC)增强与减弱的影响和炭黑含量与PTC效应的关系以及交联结构对PTC现象的稳定作用.

    Some interpretation of PTCR phenomena in polymer materials are introduced.Conduction mechanism of the PTC polymers, main factors influencing on their electric properties and their application in temperature automatic restriction,overcurrent protection and the other fields are emphasised. Some methods to make them are briefly described.The recent research progress and development trends in this field are reported in detail.

    对聚合物PTC材料PTC现象的几种解释作了介绍,着重讨论了其导电机制、影响电性能的主要因素及其在自动限温和过电流保护等领域的应用,简要说明了它的几种制作方法,并对当前该领域的发展趋势和最新研究开发进展作了较详细的介绍。

     
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