飞行时间中子衍射在历史镶嵌玻璃晶相鉴定中的应用

IF 0.3 4区 材料科学 Q4 CHEMISTRY, PHYSICAL
G. Marcucci, A. Scherillo, Ron I. Smith, D. Di Martino
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引用次数: 0

摘要

基于飞行时间中子衍射(ToF-ND)技术的应用,我们对古代镶嵌玻璃玻璃基体中存在的晶体相进行了完全无损的研究。相比之下,标准相分析技术可能涉及样品制备步骤,这与考古文物的防损要求不相容。此外,通过标准方法进行的表面或现场调查可能无法提供样品的完整描述,特别是在马赛克玻璃等非均匀材料的情况下,而ToF-ND可以在厘米尺度上调查整个玻璃成分。本研究旨在根据其矿物相组成获得玻璃的体积表征。用ToF-ND对6块古代马赛克玻璃标本进行了研究,这些玻璃标本先前已经用其他非破坏性技术进行了分析,以获得它们的化学和相组成。这些马赛克来自考古发掘或修复中的马赛克,来自不同的考古遗址和地理区域(意大利、希腊和叙利亚),时间从公元1世纪到11世纪。以Ca、Sb、Sn、Cu和Pb矿物为基础,鉴定出多种晶相,证实了前人拉曼光谱法鉴定的矿物学相。此外,还鉴定了其中5个样品的其他相。结果表明,ToF-ND是一种非常重要的辅助工具,可以克服马赛克玻璃镶嵌材料的非均质性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Time-of-flight neutron diffraction applied to the identification of crystalline phases in historical mosaic glasses
We present a completely non-destructive study of the crystalline phases present in the vitreous matrix of ancient mosaic glass tesserae, based on the application of the time-of-flight neutron diffraction (ToF-ND) technique. In contrast, standard phase analysis techniques may involve a sample preparation step, which is not compatible with the requirement of damage prevention of archaeological artefacts. Moreover, superficial or spot investigation by standard methods may not provide a complete description of the samples, especially in the case of inhomogeneous materials such as mosaic glasses, whereas ToF-ND can investigate the whole glass composition at the centimetre scale. The present study aims to obtain a bulk characterization of the glasses in terms of their mineralogical phase composition. Six glass specimens of ancient mosaic glass tesserae, that had been previously analysed with other non-destructive techniques to obtain their chemical and phase composition, were investigated by ToF-ND. These tesserae come from archaeological excavations or mosaics under restoration from different archaeological sites and geographical areas (Italy, Greece, and Syria) and date from the 1st to the 11th century AD. Several crystalline phases based on Ca, Sb, Sn, Cu and Pb minerals were identified, confirming the mineralogical phases identified with Raman spectroscopy in previous analyses. In addition, several other phases were identified for five of the samples. It is concluded that ToF-ND is an extremely important complementary tool for non-destructive bulk investigations of mosaic glass tesserae, which can overcome the heterogeneity of this kind of archaeological material.
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来源期刊
CiteScore
0.70
自引率
33.30%
发文量
0
审稿时长
1 months
期刊介绍: Physics and Chemistry of Glasses accepts papers of a more purely scientific interest concerned with glasses and their structure or properties. Thus the subject of a paper will normally determine the journal in which it will be published.
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