A Structural Model for B_2O_3 Glass-An Analysis of Neutron and X-Ray Data by a Liquid Model-

概要

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Several liquid models considered to have a close connectiota with the network struc-lure in B.0. glass were proposed and the neutron and X-ray structure factors for themodels were calculated by using the general procedure of analysis of structure factorsfor molecular liquids. From the agreement between the calcvxlated values and the ex-perimental data it was concluded that the structure of the glass was understood asthat of the liquid composed c>f boroxol rings as 'rnolecules', where each boroxol ringis regarded as a rigid sphere in the hard sphere fluid: the effective hard spherediameter is 4.18 A and the packing fraction becoxnes 0.40. Ixttermediate range struclure between two boroxol rings was also determined.
社団法人日本物理学会の論文
1988-02-15