Direct measurement of the thermal expansion of the Si-O bond by neutron total scattering

被引：57

作者：

Tucker, MG

Dove, MT

Keen, DA

机构：

[1] Univ Cambridge, Dept Earth Sci, Mineral Phys Grp, Cambridge CB2 3EQ, England

[2] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2000年 / 12卷 / 26期

关键词：

D O I：

10.1088/0953-8984/12/26/101

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The coefficient of thermal expansion of the Si-O bond has been obtained from neutron total scattering measurements of five different phases of silica, with value (2.2 +/- 0.4) x 10(-6) K-1. This value is smaller than values obtained by conventional x-ray diffraction measurements corrected for rigid-body thermal motion. Three of the datasets used in this study, tridymite and two zeolite structures, are completely new.

引用

页码：L425 / L430

页数：6

共 12 条

[1] Quartz and cristobalite: High-temperature cell parameters and volumes of fusion [J].