硼硅玻璃中 He+ 离子的连续辐照修复效应

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2024-10-22 DOI:10.1016/j.jnoncrysol.2024.123252

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引用次数: 0

摘要

硼硅玻璃中α衰变产生的结构变化备受关注。对玻璃样品进行了 Xe20+ 和 He+ 离子的单束和顺序辐照。顺序辐照是指预先用 Xe20+ 离子辐照的玻璃再用 He+ 离子辐照。分别通过纳米压痕、拉曼光谱、红外光谱和 XPS 光谱分析了宏观性能和微观结构的变化。经 He+ 离子辐照后，玻璃的硬度降低，玻璃中的 BO4 单位增加，这归因于 Na 在样品表面的迁移。在连续辐照中观察到了硬度的恢复。结合单离子辐照的结果，硬度恢复的一个原因是在 He+ 离子辐照后，Na 在深层的迁移使 BO3 结构转变为 BO4 结构。连续辐照中硼结构的变化可视为两种单一辐照效应的叠加。

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Repair effect of He+ ions in borosilicate glass by sequential irradiation

The structural variations from alpha decay in borosilicate glasses attract much attention. The glass samples were irradiated with single and sequential beams in Xe²⁰⁺ and He⁺ ions. Sequential irradiation means the glasses, which were pre-irradiated with Xe²⁰⁺ ions, were irradiated with He⁺ions. The variations in macroscopic properties and microstructure were analyzed by nanoindentation, Raman spectra, infrared spectra and XPS spectra, respectively. After He⁺ ion irradiation, the hardness of glasses decreases, and the BO₄ units increase in the glasses, attributed to the migration of Na on the sample surface. The hardness recovery was observed in sequential irradiation. Combined with the results of single ion irradiation, a reason for hardness recovery is that the migration of Na in deep layer causes the BO₃ structure to transform into BO₄ structure after He⁺ions irradiation. The variation of boron structures in sequential irradiation could be considered as the superposition of two single irradiation effects.

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.