1) remanent polarization
剩余极化强度
1.
Normally,the varying of the remanent polarization of the ferroelectric ceramics when temperature changes can be reflected on the pyroelectric current measurement of the ferroelectric ceramics.
通常情况利用铁电体陶瓷的热释电效应,通过测量其加热过程中产生的热释电流,可以较为准确地反映出铁电体陶瓷剩余极化强度Pr随温度的变化。
2.
The results show that the remanent polarization (Pr) is significantly enhanced,the coercive field strength (Ec) is decreased to a certain extent, and the average grain size is decreased to 1～2 μm for BTN ceramics with appropriate amounts of Nb-doping.
结果表明,适量的Nb掺杂可显著提高材料的剩余极化强度Pr,一定程度上降低矫顽场强Ec,并减小BTN陶瓷的平均晶粒尺寸(1～2μm)。
2) remnant polarization
剩余极化强度
1.
The remnant polarization of LaAlO3-BaTiO3 superlattices with LaAlO3 cap layer is 40 times larger than that of the superlattices with no cap l.
电学性能测试证明LaAlO3顶层结构的存在极大地改善了超晶格薄膜的电学性能,使其剩余极化强度增加了40多倍。
2.
The remnant polarization value decreased from 32 699 μC/cm 2 to 26 316 μC/cm 2, the coercive field was basically constant at 38 396 kV/cm, .
发现在激光未烧熔薄膜的能量密度下 ,经过激光作用后 ,PZT薄膜的铁电性能发生变化 :在外加电压为 6V时 ,剩余极化强度值Pr 从 32 6 99μC/cm2 变到 2 6 316 μC/cm2 ;矫顽电场保持为 38 396kV/cm不变 ;疲劳性能变稳定 ,在循环 1 75× 10 9次时 Pr 衰变率由 4 4 3%变为 34 7%。
3.
18%,the highest remnant polarization P,and coercive field Ec were 8.
发现在1150℃进行烧结,样品晶粒发育较完全,晶粒α轴取向较大,铁电性能优良,剩余极化强度Pr=8。
3) remanent polarization
剩余磁极化强度
4) residual ultimate strength
剩余极限强度
1.
Analysis of influence parameter and susceptibility for residual ultimate strength of damaged ships;
破损船体剩余极限强度的影响参数与敏感度分析
2.
Considering the asymmetry cross section of damaged hull girder and the different inclination conditions after grounding and collision,based on the Common Structural Rules for bulk carriers by IACS,this paper proposes the progressive collapse method to analyze the residual ultimate strength when the damaged ship is on several accidental situations.
根据IACS共同规范(CSR),采用逐步破坏分析法计算船体梁在不同破损情况下的剩余极限强度,同时编制了计算程序。
5) ultimate residual stiffness
极限剩余强度
1.
Safety evaluation to casing was made through the formula,residual stiffness and ultimate residual stiffness.
针对热采井中套管接头螺纹发生漏失和滑脱现象,采用有限元数值模拟,得到井筒的温度场分布,将温度场导入到应力场中计算套管残余拉应力与吞吐周期的变化规律,并进行曲线拟合,建立了适合于蒸汽吞吐过程中套管残余应力评估的关系式;结合套管的剩余强度和极限剩余强度对套管进行了安全评价。
6) residual magnetization
剩余磁化强度
1.
With modern multiple stratigraphic classification as the theoretical basis, the density, susceptibility and residual magnetization of regional lithostratigraphic formations as the research objects , and the Fisher grouping for maximum homogeneity as the mathematical means, the authors defined and determined physical stratigraphic boundaries of the stratigraphic column in Hebei Province.
以现代地层学多重划分为理论依据,以岩石地层单元组的密度、磁化率、剩余磁化强度及厚度加权算术平均值等物性参数为研究对象,以有序地质量最优分割方法为数学手段,进行河北省全区综合地层柱物理地层界线的厘定,并对其地质意义进行了初步讨论。
补充资料：剩余极化强度
分子式：
CAS号：
性质：铁电体经极化处理后，当撤除外电场后，其极化强度并不为零而是保持一有限值，称为剩余极化强度，常用Pr表示。表明已经定向排列的电畴在没有足够的反向电场输入附加能量，就无法回到其原来所处的随机状态。压电陶瓷因具有剩余极化才成为具有实用价值的压电元器件。
CAS号：
性质：铁电体经极化处理后，当撤除外电场后，其极化强度并不为零而是保持一有限值，称为剩余极化强度，常用Pr表示。表明已经定向排列的电畴在没有足够的反向电场输入附加能量，就无法回到其原来所处的随机状态。压电陶瓷因具有剩余极化才成为具有实用价值的压电元器件。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条