Effects of X-rays on Crystal Nucleation in Lithium Disilicate

被引：25

作者：

Martis, Vladimir ^{[1
,2
]}

Nikitenko, Sergey ^{[1
]}

Sen, Sabyasachi ^{[3
]}

Sankar, Gopinathan ^{[2
]}

van Beek, Wouter ^{[4
,6
,7
]}

Filinchuk, Yaroslav ^{[4
]}

Snigireva, Irina ^{[5
]}

Bras, Wim ^{[1
]}

机构：

[1] DUBBLE ESRF, Netherlands Org Sci Res NWO, F-38000 Grenoble, France

[2] UCL, Dept Chem, London WC1H 0AJ, England

[3] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

[4] Swiss Norwegian Beamlines ESRF, F-38000 Grenoble, France

[5] European Synchrotron Radiat Facil, F-38000 Grenoble, France

[6] Univ Piemonte Orientale, Dipartimento Sci & Tecnol Avanzate, I-15121 Alessandria, Italy

[7] Univ Piemonte Orientale, Nano SiSTeMI Interdisciplinary Ctr, I-15121 Alessandria, Italy

来源：

CRYSTAL GROWTH & DESIGN | 2011年 / 11卷 / 07期

关键词：

RADIATION-DAMAGE; INDUCED CRYSTALLIZATION; PREFERRED ORIENTATION; CORDIERITE GLASS; SYSTEMS; XRD; SI;

D O I：

10.1021/cg200004y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effects of exposure to a monochromatic 10 keV X-ray beam on thermally induced crystallization of lithium disilicate glass have been investigated and rendered two unexpected findings. First, it was found that an extended exposure during the nucleation heat treatment increased the number of nucleation sites. Second, it was observed that the effects extended far beyond the sample region that was directly exposed to the X-ray beam. The effects were confined to the direction perpendicular to the polarization of the synchrotron radiation beam that was used. The effects could be attributed to photo electrons created not only by the direct X-ray beam but also by the scattered radiation. Further evidence of the influence of photo electrons due to scattered X-rays is found in the results of an online crystallization study on a lysozyme solution.

引用

页码：2858 / 2865

页数：8

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