查询词典 rhombohedral

This study also shows that the formation of these pores has a close relationship with rhombohedral-slate structure and " mixed and disorder distribution " of glauberite minerals.

研究揭示出钙芒硝岩孔隙的发育与该矿物的菱片一菱板状结构、点-面式接触的&杂乱分布&密切相关。

The (1-x) PMN-x PT system has a morphotropic phase boundary separating the tetragonal and rhombohedral phases. The MPB is located in the vicinity of x=33%.

PMNT系统存在着一条铁电菱方-铁电四方准同型相界，它的化学组成在067PMN-0.33PT含量为33％附近。

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。

(1-x)BiScO3-xPbTiO3 ceramics exhibits excellent dielectric and piezoelectric properties in the vicinity of the morphotropic phase boundary (x=64.0% mol fraction PbTiO3), which separates the rhombohedral phase from tetragonal phase.

(1-x)BiScO3-xPbTiO3陶瓷在x=64.0%附近存在一个从菱方晶系过渡到四方晶系的准同型相界，在此相界附近材料能获得优良的介电和压电性能。

BiScO3-xPbTiO3 ceramics exhibits excellent dielectric and piezoelectric properties in the vicinity of the morphotropic phase boundary (x=64.0% mol fraction PbTiO3), which separates the rhombohedral phase from tetragonal phase.

(1-x)BiScO3-xPbTiO3陶瓷在x=64.0％附近存在一个从菱方晶系过渡到四方晶系的准同型相界，在此相界附近材料能获得优良的介电和压电性能。

The phenomenon demonstrates that the perovskite is a stable state with low free energy. The (1-x) PMN- x PT system has a morphotropic phase boundary separating the tetragonal and rhombohedral phases. The MPB is located in the vicinity of x = 33%. The PMN-PT ceramics near the phase boundary possesses excellent piezoelectric performance. d33 can reach to 540 pC/N. kt and kp can be up to 0.45 and 0.62, respectively.

在准同型相界附近，PMN-PT陶瓷材料具有较好的压电性能，d33可达540 pC/N，kt、kp分别可达0.45和0.62；在准同型相界附近，极化后的（1-x）PMN-xPT陶瓷材料（0.22 x 0.35）的介电常数在温度诱导FR-FT相变过程中发生突变；PMN-PT陶瓷材料在FR-FT相变过程中呈现出一个热释电峰，反应了自发极化在相变过程中发生了非线性的变化。

The influence of Zr/Ti on the mechanical and electrical properties ,phase composition,lattice constant of lead niobium stibium zirconate titanatePb(Nb1/2Sb1/2TiO3-PbTiO3-PbZrO3 (Nb1/2Sb1/2=0.02mol piezoelectric ceramics ,in which there are tetragonal and rhombohedral phases coexistent (morphotropic phase boundary,MPB),was studied by conventional containing lead piezoelectric ceramic processing and X-ray diffraction.

借助X-射线衍射仪，采用传统含铅压电陶瓷制备工艺研究了Zr/Ti对准同型相界附近铌锑锆钛酸铅（Pb(Nb1/2Sb1/2)TiO3-PbTiO3-PbZrO3）(Nb1/2Sb1/2=0.02mol压电陶瓷机电性能、相组成和晶格常数的影响。

The recovery of the pseudocubic angle of LSMO resulting from the relaxation of the shear strain introduced by the growth of rhombohedral LSMO on cubic LSAT was suggested to be the origin of the superlattice structure.

不对称的(103)倒易空间图强有力地证明了这面内调制结构源于因菱形的LSMO和立方衬底LSAT之间的角度失配引起的一种剪切应力的弛豫而导致LSMO薄膜中赝立方角的恢复。

The La_(0.7)Sr_(0.3)MnO_3 bulk is rhombohedral at room temperature with the pseudocubic parameter a of 3.873 A and a large distorted pseudocubic angle α of 90.26 °; when it grown at the cubic substrates, besides the elastic normal strains due to the lattice mismatch between the film and substrate, there is a further type of distortion in coherent LSMO films, namely, elastic shear.

首先讨论锰氧化物外延膜的厚度与角度畸变的关系；由于LSMO具有菱形对称性，当晶体结构转变为赝立方时，其赝立方夹角为90.26°。

When pH value was 9,the morphology of particles converted from rhombohedral to spherical shape.

在上述条件下得到的产物为粒径小且分布均匀的单晶粒子。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。