查询词典 phase boundary

The observed partition coefficient between the feed phase and the membrane phase, the stripping phase and the membrane phase, mass transfer resistance of boundary layer in strip phase inside the hollow fibers, boundary layer in feed phase and the diffusion in the membrane phase are taken into account in the model equations.

该数学模型同时考虑了手性对映体的表观分配行为和料液相边界层、接收相边界层以及支撑液膜相的扩散阻力。

The observed partition coefficient between the feed phase and the membrane phase, the stripping phase and the membrane phase, mass transfer resistance of boundary layer in strip phase inside the hollow fibers, boundary layer in feed phase and mass transfer resistance of the membrane phase were taken into account in the model equations.

该数学模型同时考虑了手性对映体在料液相、接收相与液膜相间的分配行为和料液相边界层、接收相边界层以及支撑液膜相的扩散阻力。

This invention discloses a preparation method for anti-corrosion rare earth magnet material characterizing that it takes the optimized grain-boundary phase design as the starting point on the basis of a dual alloy method to select Nd base alloy with high crystal forming ability as the assist alloy and reduces the temperature of the press mold blank in a quartz container to room temperature from over grain-boundary phase melting point with the water extraction way to get enough cooling rate and guarantee the non-grain-boundary phase, compared with the material of the same composition prepared by ordinary method, the weightlessness of this invented material reduces over 30% after testing the weightlessness of the material by laying it for 96 hours under 121deg.C, 2 atmosphere and 100% humid environment to show the advanced performance of anti-corrosion.

本发明公开了一种耐腐蚀稀土永磁材料的制备方法，其特征是它在双合金法制备工艺的基础上，以优化晶界相设计为出发点，选取具有较高非晶形成能力的Nd基合金为辅合金，并在烧结回火时将置于耐高温石英容器中的压型坯件，从晶界相熔点以上以水淬冷却的方式降温至室温，以达到足够的冷却速率，确保得到非晶晶界相，根据本发明制得的耐腐蚀稀土永磁材料，通过测量在121℃、2个大气压以及100％湿度环境下放置96小时后材料的失重情况，结果显示本发明得到的材料与常规方法制备的相同成分的稀土永磁材料相比失重减少了30％以上，充分证明其具备了更优越的耐腐蚀性能。可广泛应用于电子、汽车、计算机、电力、机械、能源、环保、国防、医疗器械等领域。

ABSTRACT PZT thin films with a composition near the morphotropic phase boundary ﹝ w/w=52/48﹞ were prepared by the sol-gel process, and atomic force microscopy and spectroscopic ellipsometry were utilized to trace the sintering processes.

摘 要 用溶胶-凝胶技术制备了组成在准同型相界点﹝m/m=52/48﹞附近的钙钛矿相PZT薄膜，并运用原子力显微分析与椭偏法测试相结合的方法跟踪了薄膜的烧结过程。

Influence of polarization conditions upon the properties and structures of lead niobium-stibium zirconate-titanate piezoelectric ceramics, in which there are tetragonal and rhombohedral phases coexistent (morphotropic phase boundary , MPB), was studied.

研究了极化条件对三方/四方相共存(即准同型相界，简称MPB)的铌锑锆钛酸铅压电陶瓷性能和结构的影响。

BS-PT ; morphotropic phase boundary ; high Curie temperature ; piezoelectric ceramics

BS-PT ；准同型相界；高居里温度；压电陶瓷

In this study, 0.94(Bi0.5Na0.5)TiO3-0.06BaTiO3 is a composition within morphotropic phase boundary. It was prepared by solid state reaction method. The dense ceramics with various grain size distributions were prepared by adjusting process. And grain size effect on crystal structure, dielectric, ferroelectric and piezoelectric properties were studied in detail.

故本研究将以固态反应法合成(Bi0.5Na0.5)TiO3-BaTiO3系统中之MPB 组成之0.94(Bi0.5Na0.5)TiO3-0.06 BaTiO3，并利用制程的调整以制备具有不同晶粒大小之致密陶瓷体，再来探讨晶粒大小变化对晶体结构、介电性质、铁电性质以及压电性质之影响。

Lead zirconate titanatenanopowder with a composition in the vicinty of morphotropic phase boundary (Zr/Ti=52/48) is prepared by optimizing the technology process of chemical coprecipitation method .

以四氯化钛、硝酸铅、氧氯化锆等为原料，采用化学共沉淀技术，通过优化工艺条件制备了组成在准同型相界点附近的钙钛矿相PZT纳米粉。

It exhibited a well-situated property at morphotropic phase boundary when Zr content is 0.52 and PbO·WO_3 content is 0.5mol%.

研究发现：PbO·WO_3最佳掺杂量为0.5%， Zr含量为52%时材料处于准同型相界内；Pb_(1.05)Zr_(0.52Ti_(0.48)O_3- 0.5mol%(5PbO·WO_3)压电陶瓷在1100℃保温时间为2小时条件下烧结而成，在120℃硅油中，2500V/mm场强下持续极化30分钟，样品达最佳性能。

Na$_{0.5}$Bi$_{0.5}$$_{1-x}$Ba$_{x}$TiO$_{3}$ ceramics with the compositions near the morphotropic phase boundary show superior piezoelectric properties due to the existence of more spontaneous polarization directions.

在准同质相界附近的组分存在较多的自发极化取向，因而表现出优良的压电性能。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。