查询词典 phase transition

A phase-field model was built by optimizing characteristic parameters in the convectional phase-field model for peritectic transition, which is suitable to simulate microstructure evolution for peritectic transition of specific alloys.

李新中，苏彦庆，郭景杰，吴士平，傅恒志摘要：通过对当前包晶相变相场模型特征参数的优化，建立了适合对具体合金包晶相变微观组织演化进行模拟的相场模型。

Heat-treating within the temperatures range 700 to 800℃, the transition temperature of heat-treated C-glass became higher with increasing heat-treatment temperatures and gradually approached the transition temperature of the B-glass without TiO〓; the appearance of the C-glass gradually changed from brown-violet colour to intense blue-violet colour and even to opalescence; and the phase separation morphology of TiO〓-rich phase gradually changed from an interconnected phase to a siliceous droplet phase embedded in SiO〓-rach matrix phase with increasing the heat-treatment temperatures.

在玻璃的转变点附近的温度范围内热处理含TiO〓系统玻璃时，随热处理温度的升高，玻璃的转变温度增大，逐渐向不含TiO〓的MgO-Al〓O〓-SiO〓系统玻璃的转变温度靠近；玻璃的颜色逐渐由紫色向兰色及乳白色转化，这是分相玻璃中两相组成在热处理过程中的变化所引起的。

It was found that the tetragonal transition phase and triclinic transition phase are two new long range ordering phases, which are more stable than c-ZrO〓.

复合PSZ高温时效后观察到两种新的长程有序过渡结构：四方过渡结构和三斜过渡结构，它们都是比c-ZrO〓更稳定的结构。

In the process of the oil and gas field's exploration, when the well contains a great amount of supercritical fluid such as CO2 and H2S, the well blowout, erosion, wax problem and scale problems will take place more frequently. In the process of drilling, when the supercritical fluid emerged by conventional natural gas changes in phase transition, the well blowout will happen.

在油气田的开发过程中，井筒内高含CO2、H2S的超临界态流体，加速油井管柱的腐蚀、结蜡、结垢、灾难性的突发事故的出现；在钻井过程中，气侵的超临界流体在环空相态变化将可能引发钻井井喷。

In fact, the feature of isotropically metallic property at this filling is discerned from the experiment. Besides, through a simplified model, we prove that there is a discontinuous phase transition from the bubble state to the stripe state when the filling factor increases.

最后，在有平面内磁场的情况下，类比于Laughlin波函数，我们试图构造一种朗道规范下的分数量子霍耳态的变分基态波函数，这一波函数的有效性有待于进一步的精确对角化计算的验证。

ABSTRACT The diffused phase transition and frequency dispersion of Pb-based complex perovskite relaxor ferroelectrics of PZN, PMN etc. were studied by the measurements of spectum of dielectric permittivity with temperature at different frequencies as well as by the means of differential thermal analysis and ferroelectric hysteresis technique. It was found that there are various polarization relaxors which cause DPT characteristics.

本文利用介温谱的测量，差热分析和电滞回线对以PZN，PMN为代表的铅系复合钙钛矿型弛豫铁电体的相变弥散和频率色散性等弛豫特性进行了分析研究，对产生弛豫的根本原因提出了新的看法，认为这类材料的DPT特性并不是一种由成份及结构不均匀的统计分布所造成的&准&弛豫现象，而是由材料本身弛豫机制所致。

Lower critical solution temperature ; Volume phase transition ; Bulk gels and microgels

低临界溶解温度；体积相变；本体凝胶与微凝胶

The composite membranes with different ratio of Al〓O〓 to SiO〓 are composed of amorphous matter or amorphous matter and γ-Al〓O〓 when sintered at 600℃. The composite membrane with mullite composition go thrsought the following phase transition as the temperature rising from 200℃ to 1100℃: amorphous matter and boehmite (200℃)→amorphous matter and γ-Al〓O〓(4001000℃)→mullite and α-Al〓O〓.

经热处理后不同化学组成的复合陶瓷膜由无定形态或者无定形态和γ-Al〓O〓组成，具有莫来石化学成分的复合膜随着烧结温度的升高，其组成分别为无定形态和勃姆石（200℃）、无定形态和γ-Al〓O〓（400-1000℃），并在1100℃时析出莫来石和α-Al〓O〓。

The BST films deposited in the O_2 atmosphere at 650℃ show normal ferroelectric phase transition, which can be fitted with the Curie-Weiss law.

另一种是低温氮气氛下制备的BST薄膜，介电弛豫时间和温度的关系符合德拜模型，是热激发弛豫。

The research of phase transition in Langmuir monolayer, an important subject in physics, chemistry, and biology etc., has recently attracted much theoretical and experimental interest.

Langmuir单层的相变研究是当前物理学，化学和生物学等学科的重要研究课题，引起了理论和实验上的广泛兴趣。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。