超臨界電場 的英文怎麼說

中文拼音 [chāolīnjièdiànchǎng]
超臨界電場 英文
overcritical electric field
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 臨 : Ⅰ動1 （靠近; 對著） be close to; face; overlook 2 （來到; 到達） be present; arrive 3 （將要; 快...
  • 界 : 名詞1 （相交的地方; 劃分的界限） boundary 2 （一定的范圍） scope; extent 3 （按職業、工作或性別等...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 場 : 場Ⅰ名詞1 （平坦的空地 多用來翻曬糧食 碾軋穀物） a level open space; threshing ground 2 [方言] （...
  1. It is found that the enhancement of the long - range interaction will result in the increment of the phase transition temperature, the increase of the critical transverse field and the decrease of the critical size

    採用超越平均場理論計算了長程相互作用對鐵電薄膜的物理性質的影響，發現長程相互作用的增強將使鐵電薄膜的居里溫度升高、臨界橫場增大、臨界尺寸下降。
  2. The x - ray diffraction, scanning electronic microscope and the squid were used to characterize the properties of the mgb2 core in mgb2 / fe tapes and wires. the effect of the proportion of mg, b and sic as well as the sintering parameters on the phase formation, microstructure and the critical current densities of mgb2 / fe tapes and wires was discussed in details. the results showed that the high purity of mgb2 core could be synthesized by both the traditional vacuum sintering and the sparking plasma sintering and the vacuum sintering environment restrained the oxidation of mg effectively

    相對于傳統真空燒結， sps燒結方式成相速度快、樣品晶粒細小均勻、 mgb2超導芯緻密性好、晶間連接優良，因而sps燒結樣品的臨界電流密度明顯高於傳統真空燒結樣品，其中未摻雜的帶材樣品經過sps800 ， 15分鐘燒結后，自場下的臨界電流密度jc值在10k時達到8 . 64 105a / cm2 ，而且隨著測量溫度和外加磁場的增加， sps燒結樣品的臨界電流密度下降率比傳統真空燒結樣品緩慢，在20k ，自場時為5 . 97 105a / cm2 ， 20k ， 3t時，臨界電流密度值仍大於104a / cm2 。
  3. The highest jc of 8. 64 105a / cm2 at 10k, 0t was obtained in the un - doped mgb2 / fe tape sintered at 800 for 15 minutes by sps. it is worthwhile to note that the jc value was decreased much slowly in this sample with the increase of the testing temperature and magnetic field. for example, the jc was 5. 97 105a / cm2 at 20k, 0t, and at 20k, 3t the jc value was

    從目前試驗結果看，摻雜量為5mol %時線材性能較好，樣品的臨界電流密度在自場下達到6 105a / cm2 ，並且sic摻雜改進了樣品在高場下的jc值，在4t時，摻雜線材樣品的臨界電流密度大大超過未摻雜樣品，這是由於sic的摻入生成了細小均勻的mg2si ，分佈在晶粒
  4. In addition, the characteristics of critical current of hts tapes in ac applied field and that of voltage - current curve when transport ac currents were studied. the problem on the criterion of ac current carrying capacity of hts tape was discussed, and some suggestion on the criterion of ac current carrying capacity were proposed

    另外，對高溫超導帶材在交流背景磁場下的直流臨界電流特性，及超導體傳輸交流時的流?壓曲線特性進行了實驗研究，並對高溫超導帶材的交流最大載流能力的測量判據問題進行了探討，給出最大交流載流電流測量判據的建議。
  5. Based on the effective mass theory and critical state model, an anisotropic theory of critical current and ac losses for single hts tape and tape stacks were established. analytical formulae were presented to calculate critical currents and ac losses with an arbitrary angle between the wide side of hts tape and the direction of ac or dc applied fields. from the anisotropic theory of ac losses of hts sample, a numerical model to calculate ac losses of hts coil was developed

    基於臨界態模型與高溫超導體的有效質量理論，建立了高溫超導帶材及並聯堆疊帶材的交流損耗與臨界電流的各向異性理論模型；給出了高溫超導帶材的交流損耗及臨界電流隨（交、直流）背景磁場與超導帶面夾角變化規律的理論公式；依據所建立的高溫超導短樣帶材的各向異性理論公式，給出了高溫超導線圈交流損耗的數值計算模型；並利用該模型，計算了高溫超導雙餅線圈的交流損耗；並與實驗測量結果進行了比較分析。
  6. Currently one of the major challenges associated with making mgb2 a useful superconducting material is to increase its critical current density at higher magnetic fields

    要將硼化鎂製成有用的超導材料，目前最主要的挑戰之一，就是如何在較高的磁場下增加臨界電流密度。
  7. On the other hand, in the four years since the discovery of superconductivity in this compound, the research community has made considerable improvements in critical current density, both in the low - field value and, perhaps more important, in the higher - field values

    另一方面，在發現這個化合物具有超導性的四年後，不論是在低磁場，或者是在更重要的較高磁場下，這個研究領域的專家已經將臨界電流密度提高了許多。
  8. For hts maglev vehicle, cylindrical bulk superconductors with the thickness of 25mm are better to provide enough guidance force and keep enough levitation height when they are field cooled above the ndfeb guideway. the trapped flux ability of superconductors is influenced by the weak links and critical current density and can be reflected by the levitation force. it has no direct relationship with its density

    超導體塊材自身的密度跟它的俘獲磁通能力之間並沒有直接的聯系，影響超導體俘獲磁通能力的是超導材料內的弱連接和材料的臨界電流密度，而超導體在一定外場下受到的懸浮力能夠在一定程度上反映出它的俘獲磁通性能。
  9. It has weak - link free grain boundaries and is a kind of low cost material, . which could be used under 20k ~ 30k. however, mgb2 reveals a poor jc property in high magnetic field. currently in the research of the mgb2 wires and tapes many efforts have been made to improve its grain connection or enhance the jc dependence on the magnetic field using the method of chemical doping

    二硼化鎂是迄今為止所發現的超導臨界轉變溫度最高的非銅氧化物超導材料，它具有無弱連接、成本低廉、能夠在20k 30k應用等優勢，但是mgb2在外場下的臨界電流特性較差，目前在優化粉末套管法制備mgb2線帶材工藝的研究中，通過改善晶間連接和利用化學摻雜提高樣品的超導臨界電流密度是mgb2成材研究的一個重要方向。
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