Ring compaction as a mechanism of densification in amorphous silica
Ring compaction as a mechanism of densification in amorphous silica
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环压作为无定形二氧化硅致密化的机制
DOI:
10.1103/physrevb.107.144203
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发表时间:
2023
影响因子:
3.7
通讯作者:
Kohara Shinji
中科院分区:
文献类型:
--
作者:
Salmon Philip S.;Zeidler Anita;Shiga Motoki;Onodera Yohei;Kohara Shinji
The structure of permanently densified silica glass is investigated by neutron and x-ray diffraction, and by the production of atomistic models that reproduce the diffraction results. The focus is on the nature of the ordering on an intermediate length scale that originates from the formation of-rings, whereis the number of Si or O atoms within a ring. The densification process has a large effect on this ordering, as identified by pronounced changes to the first sharp diffraction peak (FSDP) in the measured structure factors. A clear and systematic dependence of the distribution of ring sizes on the position and shape of the FSDP could not be found, i.e., the ring statistics are not directly encoded into the form of this peak. Instead, a significant contribution to the glass densification originates from compaction of the-rings, a metric that is quantified by the radius of gyration and lifetime of the rings. We thereby uncover and quantify a key densification mechanism in amorphous materials.
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DOI:
10.1063/5.0040393
发表时间:
2021
期刊:
The Journal of chemical physics
影响因子:
--
作者:
David Ormrod Morley;P. Salmon;M. Wilson
通讯作者:
M. Wilson
影响因子:
4.6
作者:
Guerette M;Ackerson MR;Thomas J;Yuan F;Bruce Watson E;Walker D;Huang L
通讯作者:
Huang L
影响因子:
16.6
作者:
Shi, Ying;Deng, Binghui;Gulbiten, Ozgur;Bauchy, Mathieu;Zhou, Qi;Neuefeind, Joerg;Elliott, Stephen R.;Smith, Nicholas J.;Allan, Douglas C.
通讯作者:
Allan, Douglas C.
DOI:
10.1088/0953-8984/19/33/335215
发表时间:
2007
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
M. Tucker;D. Keen;John S. O. Evans;M. Dove
通讯作者:
M. Dove
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
P. Salmon;Liping Huang
通讯作者:
Liping Huang