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导出双轴丝状相液晶在指向矢与易取向轴重合时的表面相互作用能 .应用Ritz方法 ,对半无界液晶体得出沿表面法向的双轴相 (Bc)至沿表面某一轴的双轴相 (Ba)的相变 .随着表面锚泊强度双轴性部分的增大 ,Ba 的产生机制逐渐由降低温度转为表面锚泊 ,因此Ba 相可出现在较高温度和较大温度范围内 .在表面锚泊强度单轴性部分α值的一定范围内 ,增大α值可使Ba 在较高温度产生 ,但α值的进一步增大则使液晶又从Bα 返回Bc 相 .
Derive the interaction energy of the biaxial filamentous phase liquid crystal when the director and the easy axis coincide.The Ritz method is used to obtain the biaxial phase (Bc) Phase transformation of biaxial phase (Ba) .With the biaxial part of the surface anchorage strength increases, the mechanism of Ba is gradually changed from reduced temperature to surface anchoring, so Ba phase can appear at higher temperature and larger temperature range Within a certain range of α value of uniaxial part of mooring strength, increasing α can make Ba produce at higher temperature, but further increase of α makes liquid crystal return from Bα to Bc again.