α-β phase transition of quartz based on molecular dynamics simulations

  • Yonghong Cheng
  • , Naidong Luo
  • , Xiaojun Xie
  • , Mang Li
  • , Lili Jiang
  • , Sujiao Yu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

α-β phase transition of quartz has a strong impact on its dielectric properties. This paper introduces molecular dynamics to simulate the phase transition of α-β quartz. Firstly, build the α-quartz model, and then simulate the dynamical property in ensemble NPT at different temperatures. With varied temperatures, the values of structure properties like bond length and bond angle were changed. The changes are distinct near the α-β phase transition temperature. At the same time, the other parameters like density and so on were also changed in the process. By analyzing the changes of these parameters, we can obtain the temperature of phase transition. This simulation temperature is consistent with the experiment data. Findings in this paper may present useful information for processing of the SiO2 phase transition.

Original languageEnglish
Title of host publication2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
Pages378-381
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 - Harbin, China
Duration: 19 Jul 200923 Jul 2009

Publication series

NameProceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials

Conference

Conference2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
Country/TerritoryChina
CityHarbin
Period19/07/0923/07/09

Keywords

  • Molecular dynamics
  • Quartz
  • α-β phase transition

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