一级相变
- 网络first-order phase transitions;First-order phase transformations;first order phase transition;First-order Transition
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线性驱动下一级相变的重正化群理论
Renormalization Group Theory of First-Order Phase Transitions under Linear Driving External Field
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贝氏体相变理论&两个一级相变耦合的模型
Theory of bainitic Transformation-A model with coupled first-order phase transformations
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表面扩散对CO氧化反应一级相变点的影响:蒙特卡罗模拟
The Influence of Diffusion on the First Order Phase Transition Point of CO Oxidation : Monte Carlo Simulation
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具有一级相变的CoCr2O4纳米颗粒体系的磁卡效应
Magnetocaloric effect of CoCr_2O_4 nanoparticles with a first-order magnetic transition
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随着Al含量的增加,研究的碳化物相变由弱的一级相变转为二级相变。
The order of phase transition for LaFe_ 13-x Al_x carbides changes from the first one that is weak to the second one with the increase of Al content .
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本论文针对能否用Maxwell关系计算一级相变体系磁熵变的问题进行了适当的讨论。
This paper has carried on the proper discussion about whether Maxwell 's relationship could calculate the magnetic entropy changes of the first-order phase transition .
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可以发现,材料的一级相变是一个温度滞后为10K,但持续发生在至少66K的一个很大的温度区间的结构相变。
The first order transition goes on in a quite wide temperature range with a thermal hysteresis of about 10K .
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随机晶场作用下的键稀疏BCM居里温度随着晶场的增加而单调递减,在晶场较大处出现了三临界点,它连接着一级相变线和二级相变线。
The system with a larger crystal field can exhibit tricritical point at which the phase transition changes from second to first order .
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分析表明,Maxwell关系可用于一级相变体系的磁熵变计算,并且在实际体系中,与Clausius-Clapeyron公式相比可以给出更合理的结果。
The results from analysing indicated that Maxwell 's relationship could calculate above magnetic entropy changes , and it could give more reasonable results in the actual system than Clausius-Clapeyron formula .
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研究了稀土氧化物高温超导体RBa2Cu3Oy(R:一般为稀土元素)超导转变的相变性质,认为在没有外界磁场作用时超导转变为二级相变,有外界磁场作用时为一级相变。
The property of superconducting phase transition of the high T_c superconductor RBa_2Cu_3O_y ( R : most rare earth elements ) was investigated . The conclusion was drawn that the phase transition changed from first order in magnetic field to second order in non-magnetic field .
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在基于BML型的自动机模型中都有从自由行驶相经过一级相变到所有车辆都不能行驶的堵塞相,这是真实系统中不会出现的非物理结果。
The automaton models based on BML all had first order phase change from freely-moving phase to jamming phase in which all cars are deadly jammed , which are nonexistent non-physical results in real systems .
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所求得的相变都是一级相变。
All transitions are found to be the first order .
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同宿相切点邻域的一级相变
The First Order Phase Transition of the Neighborhood of Homoclinic Tangency Point
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类氩流体的物态方程和气液一级相变
Equation of State and Phase Transition to First Order for Argon-Like Fluids
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这个相变在热力学上为一级相变。
Thermodynamically it is a first order transition .
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超大磁电阻亚锰酸盐金属-绝缘体一级相变的普适性
Universality of First-Order Metal-Insulator Transitions in Manganites
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对理想的一级相变和非理想的有过冷夸克相存在的相变机制进行了分析。
Ideal first-order phase transition and non-ideal phase transition that have supercooling quark phase in the early universe are analysed .
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对于低隧穿频率情形,铁电相变是二级的,体系服从居里-外斯关系。进一步增加频率到一级相变区,临界指数开始偏离1,并随频率增加而增大。
For low tunneling frequency , the ferroelectric phase transition is of second-order and the system conforms to the Curie-Weiss law .
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算子方法求解schlogl一级相变模型F&P方程的矩方程
The operator method for solving the moment equation of F P equation for a model describing first order nonequilibrium phase transition
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第二章中探讨了伴随一级相变的常见体系&气液共存体系。
In chapter 2 , a familiar system - gas-liquid coexistent system which is concomitant of first-order gas-liquid phase transition is discussed .
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单元系一级相变蒸气压全息方程的建立和讨论
The Establishment and the Application of the Whole - Information Equation of the Single System A - Grade Phase - Change Vapour Pressure
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利用一级相变效应,即以压缩空气作为动力来驱动汽车。
To use the first order phase transition effect , That is to uses compressed air as the driving force to drive the car .
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发现采用商业级钆配制合金时,由于杂质抑制了材料的一级相变,未发现巨磁热效应。
The first order phase transformation in the samples made of commercial Gd was destroyed by impurities , and no giant magnetocaloric effect was found .
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观察到一级相变点值变大,二级相变点值变小,反应窗口变宽。
It is observed that the width of the reactive window is broadened , the first critical point becomes larger and the second critical point becomes smaller .
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在相变温度区域里,介电、热电和压电都有明显的热滞效应,具有一级相变特性。
Near the transition temperature , a thermal hysteresis was found in dielectric , pyroelectric and piezoelectric measurements . Thus the transition should be of the first order transition .
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通过计算系统的基态能量、基态纠缠等量我们证实该量子相变是一级相变。
We calculate the quantities , such as the ground state energy , entanglement entropy and so on , and confirm that it is a first-order quantum phase transition .
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用石英计测量了PZT955陶瓷在冲击波作用下发生铁电-反铁电一级相变时产生的双波结构,相变起始压力约为05GPa。
Shock induced phase transition in PZT 95 / 5 ferroelectric ceramics was studied by using X cut quartz gauge . The stress profile measured shows definitely a two wave structure which indicates that the FE / AFE phase transition starts at stress about 0 5 GPa .
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计算结果显示,模型系统在正则描述下出现一级相变,而在微正则描述下不出现,表明正则和微正则系综对该系统相变级数的描述不等效。
The computational result shows that there is a first-order transition in the system described by the canonical ensemble , but no when described by the micro - canonical ensemble . It means that both ensembles ' descriptions of the transition 's order in the model system are not equivalent .
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结果表明,当这些化合物处于反铁磁状态的温度范围内时,Mn次晶格中发生了场诱导的从反铁磁状态到铁磁状态的一级磁相变。
The results show that the field induced antiferromagnetism → ferromagnetism transitions in Mn sublattice are founded in the antiferromagnetic state temperature range .
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围绕具有一级磁性相变的La-Fe基NaZn13型化合物的磁场诱导熵变研究,从室温磁制冷目的出发讨论了材料研究和熵变机制。
Magnetic field induced entropy change was investigated for La-Fe based NaZn_ ( 13 ) - type compounds with magnetic first-order phase transition . In view of magnetic refrigeration at room temperature , the developing of the materials and the understanding of the entropy change were reviewed .