Fictive temperature and medium range order in silicate glasses: a relationship between heat capacity and boson peak

被引：13

作者：

Champagnon, B ^{[1
]}

Chemarin, C ^{[1
]}

Richet, P ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, Lab Physicochim Mat Luminescents, Unite Mixte Rech 5620, F-69622 Villeurbanne, France

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1998年 / 77卷 / 02期

关键词：

D O I：

10.1080/13642819808204993

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The comparison of the heat capacity excess C-p/T-3 and of the boson peak in several silicate glasses, grossular (Ca3Al2Si3O12), diopside (CaMgSi2O6), wollastonite (CaSiO3) and enstatite (MgSiO3) shows good quantitative agreement, demonstrating a common origin for both observations. The effects of different fictive temperatures T-F are also measured in both cases and show an increase in the density g(omega) of states with increasing T-F. It is concluded that quenching or annealing affects mainly the medium-range order of silicate glasses.

引用

页码：663 / 669

页数：7

共 10 条

[1] LOW-FREQUENCY VIBRATIONAL-STATES IN AS2S3 GLASSES [J].