Abstract The structural study of lanthanum sodium aluminoborosilicate (55SiO2-(25-x) Al2O3-xB2O3–15Na2O–5La2O3) glasses were investigated. The structural characterization by solid state Nuclear Magnetic Resonance have outlined the role of aluminum/boron substitution. This study has a particular interest for applications like the nuclear waste glass storage. Various types of matrices have been considered for containment: borosilicate, aluminosilicate and aluminoborosilicate, the latter with a high rare earth content ability is of particular interest. This system will be considered in our study from the point of view of a simple five-oxide glass, rich in TR2O3 (TR = La), in order to provide additional elements of understanding to the model glasses of containment for nuclear waste, lanthanum simulating, among other things, all lanthanides as well as minor actinides contained in the waste. In this paper, ourwork focused on the study of the influence of boron on the structure by solid state Nuclear Magnetic Resonance (NMR). In particular, we examine the impact of aluminum/boron substitution in a series of glasses in term of structural changes.

中文翻译：

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用核磁共振波谱法研究铝硼硅酸镧钠玻璃的结构

摘要 研究了铝硼硅酸镧钠 (55SiO2-(25-x) Al2O3-xB2O3–15Na2O–5La2O3) 玻璃的结构研究。固态核磁共振的结构表征概述了铝/硼替代的作用。这项研究对核废料玻璃储存等应用特别感兴趣。各种类型的基质已被考虑用于密封：硼硅酸盐、铝硅酸盐和铝硼硅酸盐，后者具有高稀土含量能力是特别令人感兴趣的。在我们的研究中，我们将从富含 TR2O3 (TR = La) 的简单五氧化物玻璃的角度考虑该系统，以便为核废料的容器模型玻璃提供额外的理解元素，镧模拟， 除其他事项外，废物中包含的所有镧系元素和次要锕系元素。在本文中，我们的工作重点是通过固态核磁共振 (NMR) 研究硼对结构的影响。特别是，我们从结构变化的角度研究了铝/硼替代在一系列玻璃中的影响。