[1]徐茂杰,张志国,杨国琛..向列相液晶硬棒模型的改进[J].郑州大学学报(工学版),2001,22(02):65-68.[doi:10.3969/j.issn.1671-6833.2001.02.020]
　XU Maojie,ZHANG Zhiguo,Yang Guochen.Improvement of nematic phase liquid crystal hard bar model[J].Journal of Zhengzhou University (Engineering Science),2001,22(02):65-68.[doi:10.3969/j.issn.1671-6833.2001.02.020]

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向列相液晶硬棒模型的改进()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

22

期数:

2001年02期

页码:

65-68

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Improvement of nematic phase liquid crystal hard bar model

作者:

徐茂杰; 张志国; 杨国琛.

河北工业大学文理学院,, 河北工业大学文理学院,, 河北工业大学文理学院,

Author(s):

XU Maojie; ZHANG Zhiguo; Yang Guochen

关键词:

硬棒模型;  序参量;  集团展开;  排斥体积;  自由能

Keywords:

hard bar model;  sequence parameters;  Group expansion;  rejection volume;  Free energy

DOI:

10.3969/j.issn.1671-6833.2001.02.020

文献标志码:

A

摘要:

向列相液晶被广泛地应用于TN,STN等显示技术,向列相-各向同性相的转变温度TNI的研究具有重要的理论和应用意义.在L.Onsager硬棒理论的基础上,考虑分子之间的相互吸引势,从而给出改进的模型.利用“集团展开”方法,导出了系统的自由能;采用Zwanzig方法,得到序参量的自洽方程,系统的状态方程及所得转变温度TNI与L.Onsager硬棒理论相比更接近实验结果.

Abstract:

Nematic phase liquid crystals are widely used in TN, STN and other display technologies, and the study of nematic-isotropic phase transition temperature TNI has important theoretical and application significance. Based on L. Onsager’s hard rod theory, the mutual attraction potential between molecules is considered, and an improved model is given. Using the "group unfolding" method, the free energy of the system is derived; Using the Zwanzig method, the self-consistent equation of the order parameters, the equation of state of the system and the resulting transition temperature TNI are closer to the experimental results than the L. Onsager hard bar theory.

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