Multi‐analytical characterisation of Art Déco dinanderie: Single‐point and map analysis of Jean Dunand's metal artworks

IF 2.4 3区 化学 Q2 SPECTROSCOPY
Arianna Passaretti, Luana Cuvillier, Claude‐Alain Künzi, Laura Brambilla, Edith Joseph
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Abstract

Jean Dunand (1877–1942) was a European artist internationally appreciated at his time for his innovative Art Déco housewares made of hammer‐beaten copper‐based alloys, known as dinanderie. Still uncertain was the nature of the constituting materials; therefore, for the first time, three objects, namely, a bowl, a trinket bowl and a vase, were the target of a multi‐modal work of characterisation. Mobile or benchtop X‐ray fluorescence, Fourier‐transform infrared (FTIR) and Raman spectroscopies were used to adapt the analyses to the shape and size of the artefacts. Elemental analysis verified that the vase consisted of brass Cu70Zn30, whereas the bowl and the trinket bowl were made of nickel silver Cu70Zn19Ni11. The black finishing present on all the artefacts was related to tenorite by Raman spectroscopy, ascribing the patina to an intentional artist's willing and not to spontaneous tarnishing processes. Metal soaps of copper and zinc were documented as degradation products by FTIR spectroscopy. The drawings adorning the vase and the trinket bowl were identified as silver‐based, contrary to what was hypothesised by conservators (i.e., tin‐based) due to conventional Dunand's inlaying technique. Besides single‐point analysis, Raman mapping was performed in‐situ, applying for the first time a Virsa™ Raman Analyser (Renishaw) in the field of cultural heritage. The fibre‐optic‐coupled instrument allowed to comply constantly with the artefacts' geometry thanks to the modular probe and the motorised focus‐tracking stand. The synergic combination of elemental and vibrational analyses resulted successful, providing new and unique information on artist's technique in view of possible restoration interventions.
对装饰派艺术作品进行多重分析:让-杜南金属艺术品的单点和地图分析
让-杜南(Jean Dunand,1877-1942 年)是一位欧洲艺术家,他用锤打过的铜基合金制作的创新型装饰艺术家居用品(被称为 "dinanderie")在当时受到国际赞誉。但构成材料的性质仍不确定;因此,三件物品,即一个碗、一个小饰品碗和一个花瓶,首次成为多模式鉴定工作的目标。我们使用了移动式或台式 X 射线荧光、傅立叶变换红外(FTIR)和拉曼光谱进行分析,以适应文物的形状和大小。元素分析证实,花瓶由黄铜 Cu70Zn30 制成,而碗和饰品碗则由镍银 Cu70Zn19Ni11 制成。拉曼光谱显示,所有器物上的黑色饰面都与芒硝有关,这说明铜绿是艺术家有意为之,而非自发褪色过程。傅立叶变换红外光谱法证明铜和锌的金属皂是降解产物。由于传统的杜南镶嵌技术,花瓶和饰品碗上装饰的图画被鉴定为银基,这与保护人员的假设(即锡基)相反。除了单点分析外,我们还首次在文化遗产领域应用 Virsa™ 拉曼分析仪(雷尼绍)进行了现场拉曼绘图。由于采用了模块化探头和电动聚焦跟踪支架,该光纤耦合仪器能够不断适应文物的几何形状。元素分析和振动分析的协同组合取得了成功,为可能的修复干预提供了有关艺术家技艺的新的独特信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.40
自引率
8.00%
发文量
185
审稿时长
3.0 months
期刊介绍: The Journal of Raman Spectroscopy is an international journal dedicated to the publication of original research at the cutting edge of all areas of science and technology related to Raman spectroscopy. The journal seeks to be the central forum for documenting the evolution of the broadly-defined field of Raman spectroscopy that includes an increasing number of rapidly developing techniques and an ever-widening array of interdisciplinary applications. Such topics include time-resolved, coherent and non-linear Raman spectroscopies, nanostructure-based surface-enhanced and tip-enhanced Raman spectroscopies of molecules, resonance Raman to investigate the structure-function relationships and dynamics of biological molecules, linear and nonlinear Raman imaging and microscopy, biomedical applications of Raman, theoretical formalism and advances in quantum computational methodology of all forms of Raman scattering, Raman spectroscopy in archaeology and art, advances in remote Raman sensing and industrial applications, and Raman optical activity of all classes of chiral molecules.
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