Two-site multi-cation ordering-disordering in minerals; an alternative kinetic model

Abstract

Other| August 01, 1996 Two-site multi-cation ordering-disordering in minerals; an alternative kinetic model Lian-Kun Sha; Lian-Kun Sha Australian National University, Department of Geology, Canberra, Australia Search for other works by this author on: GSW Google Scholar Bruce W. Chappell Bruce W. Chappell Search for other works by this author on: GSW Google Scholar American Mineralogist (1996) 81 (7-8): 881–890. https://doi.org/10.2138/am-1996-7-811 Article history first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Lian-Kun Sha, Bruce W. Chappell; Two-site multi-cation ordering-disordering in minerals; an alternative kinetic model. American Mineralogist 1996;; 81 (7-8): 881–890. doi: https://doi.org/10.2138/am-1996-7-811 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyAmerican Mineralogist Search Advanced Search Abstract Mueller’s model has been widely applied to modeling kinetic experimental data on the ordering-disordering of cations between two nonequivalent sites. This model is valid only for pure or nearly pure binary systems. For ordering-disordering involving three or more cations (multiple cation or multi-cation) between two sites, Mueller’s methodology, which is based on a two-cation exchange reaction, yields no explicit general solution. On the basis of a single-cation exchange reaction, we present an alternative kinetic model for multi-cation ordering-disordering in minerals with two nonequivalent sites. This model is not only suitable for binary systems but is also valid for multi-cation ordering-disordering at two nonequivalent sites. In addition, two kinetic coefficients for each individual cation can be easily obtained using nonlinear parameterization. A comparison of reported experimental data with theoretical calculations has shown that our model can fit both binary and multi-cation ordering-disordering very well and can also explain and predict many kinetic features observed in experiments. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.