论文标题
毛细管驱动的双轴平面和硬气瓶的同型呼射
Capillary-driven biaxial planar and homeotropic nematization of hard cylinders
论文作者
论文摘要
We use the Parsons Lee modification of Onsagers second virial theory within the restricted orientation approximation to analyse the phase behaviour of hard cylindrical rods confined in narrow pores Depending on the wall to wall separation we predict a number of distinctly different surface generated nematic phases including a biaxial planar nematic with variable number of layers a monolayer homeotropic and a hybrid T type structure For narrow pores we find evidence两种类型的二阶单轴双轴过渡的取决于颗粒的距比的不同，我们更具体地观察到从n到层之间连续的交叉，每个n层都具有独特的平面锚固对称性，以及从平面到同型表面的一阶过渡，与先前研究的平面固定的相反，我们发现表面锚定的整体置于平面固定的情况下，归纳的整体呈现，归因于归因于归纳的归纳，归功于归纳的归纳。包装分数
We use the Parsons Lee modification of Onsagers second virial theory within the restricted orientation approximation to analyse the phase behaviour of hard cylindrical rods confined in narrow pores Depending on the wall to wall separation we predict a number of distinctly different surface generated nematic phases including a biaxial planar nematic with variable number of layers a monolayer homeotropic and a hybrid T type structure For narrow pores we find evidence of two types of second order uniaxial biaxial transitions depending on the aspect ratio of the particles More specifically we observe a continuous cross over from n to layers each with a distinct planar anchoring symmetry as well as first order transitions from planar to homeotropic surface anchoring Contrary to the previously studied case of parallelepipeds we find that the surface anchoring transition from planar to homeotropic symmetry occurs at much lower overall rod packing fractions
