期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 12, 期 26, 页码 L425-L430出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/12/26/101
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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.
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