High temperature brillouin scattering study of lanthanum and sodium aluminoborosilicate glasses

被引：0

作者：

Mabrouk, Assia ^{[1
,2
]}

Bachar, Ahmed ^{[3
]}

Fatani, Imade F. E. ^{[4
]}

Vaills, Yann ^{[2
]}

机构：

[1] Univ Ibn Tofail, Lab Chim Organ Catalyse & Environm, Ecole Natl Super Chim, ENSC, BP 133, Kenitra 14000, Morocco

[2] Univ Orleans, CEMHTT UPR 3079, CNRS, F-45071 Orleans, France

[3] Univ Ibn Zohr, Fac Sci Appl Ait Melloul, Lab Genie Proc LGP, Agadir, Morocco

[4] Univ Sultan Moulay Slimane, Ecole Natl Sci Appl ENSA, Lab Sci & Technol Ingn LaSTI, Khouribga, Morocco

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2021年 / 257卷

关键词：

Aluminoborosilicate glasses; Brillouin spectroscopy; Glass transition temperature; Structure; Relaxation temperature; ELASTIC PROPERTIES; CERAMICS; RELAXATION; SEPARATION; CRYSTALS; SLAG;

D O I：

10.1016/j.matchemphys.2020.123790

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work is devoted to the study of a rare earth aluminoborosilicate glass, whose molar composition is 55SiO2-(25-x)Al2O3-xB2O3-15Na2O-5La2O3, which is considered as a model glass for nuclear waste immobilization, by simulating all lanthanides as well as minor actinides contained in nuclear waste with lanthanum. From a structural characterization point of view, these glasses have been studied by Brillouin scattering. The temperature dependence was studied over a wide temperature range from room temperature to 1400 K in order to highlight the important role of the effect of aluminum/boron substitution. The influence of annealing was clearly observed in frequency and width. The temperature dependence of the Brillouin frequency shift was used to determine the glass transition temperature and the relaxation temperature.

引用

页数：6

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