Raman and SEM‐EDS insights into technological aspects of Medieval and Renaissance ceramics from Southern Italy,Journal of Raman Spectroscopy

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Raman and SEM‐EDS insights into technological aspects of Medieval and Renaissance ceramics from Southern Italy
Journal of Raman Spectroscopy ( IF 2.4 ) Pub Date : 2020-04-23 , DOI: 10.1002/jrs.5884
Maria Cristina Caggiani ₁ , Germana Barone ₁ , Lavinia Ferri _{2,

3} , Rocco Laviano _{4,

5} , Annarosa Mangone _{4,

6} , Paolo Mazzoleni ₁

Affiliation

An analytical investigation performed on Southern Italy pottery highlighted the usefulness of Raman spectroscopy to give answers to archaeological questions. It can provide important information concerning the production technology and raw materials constituting the glassy coatings. Raman spectroscopy was supported by Scanning Electron Microscopy coupled with Energy Dispersive X‐ray Spectroscopy (SEM‐EDS) for observations and elemental analysis. The studied samples, ranging from the 13th century lead‐tin‐glazed protomajolica to the 15th –16th enamelled pottery, come from the Castles of Montella and Ariano Irpino (Campania), from the castles of Scicli and Modica and from surveys carried out in Buscemi and Caltagirone (Sicily). Glassy matrices, opacifying agents, colour‐related raw materials and body‐coating interface crystalline phases were investigated. Though the coatings resulted all typically lead‐rich glass types, lumps showing a different Raman profile suggested that at least in one case, the batch was adultered with recycled glass waste. Furthermore, samples coming from Montella, belonging to the three main classes of ceramics defined by archaeological hypothesis, could be grouped according to their cassiterite content. The crystallization of lead–potassium feldspars at the coating‐body interface in a group of samples was ascertained. With regard to the origin of colours, the spectra of blue coatings highlighted phases that can be traced back to the use of Co‐based and Co–As‐based raw materials, while turquoise decorations were found to contain malayaite.

中文翻译：

拉曼和SEM‐EDS对意大利南部中世纪和文艺复兴时期陶瓷技术方面的见解

在意大利南部陶器上进行的一项分析研究突出了拉曼光谱法对考古问题的解答的有用性。它可以提供有关构成玻璃涂层的生产技术和原材料的重要信息。拉曼光谱仪由扫描电子显微镜和能量色散X射线光谱仪（SEM-EDS）结合进行观察和元素分析。所研究的样品，范围从13世纪的铅锡釉原石至15至16日的搪瓷陶器，来自蒙泰拉城堡和阿里亚诺·伊尔皮诺城堡（坎帕尼亚），希克利城堡和莫迪卡城堡以及在比塞米和卡尔塔吉罗内（西西里岛）进行的调查。研究了玻璃状基质，遮光剂，与颜色有关的原料和人体涂层界面的结晶相。尽管涂层产生的所有类型都是典型的富铅玻璃，但团块显示出不同的拉曼曲线，这表明至少在一种情况下，该批次掺入了可回收的玻璃废料。此外，来自蒙泰拉的样品属于考古假说定义的三大类陶瓷，可以根据其锡石含量进行分组。确定了一组样品中涂层主体界面处的铅-钾长石的结晶。

更新日期：2020-04-23

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