多分析和非侵入性方法,用于描述原本蓝色涂料的黑色区域
Maria Labate1, Maurizio Aceto2, Giacomo Chiari3
1Dipartimento di Chimica, Università degli Studi di Torino, Via P.Giuria 7, 10125 Torino, Italy.
Molecules (Basel, Switzerland)
|January 8, 2025
概括
文艺复兴时期绘画中的黑色细节最初是蓝色的青蓝色素. 这项研究使用了非侵入性方法来分析艺术品中的青石 (基本的铜碳酸盐),揭示了它随着时间的推移而发生的变化.
科学领域:
- 艺术史和保护科学 艺术史和保护科学
- 对历史色素的材料分析.
背景情况:
- 青石 (基本的铜碳酸盐) 是中世纪和文艺复兴时期普遍存在的蓝色颜料.
- 在历史绘画中蓝色素颜料出现黑色的现象尚未完全理解.
- 之前的研究已经讨论了黑色是由于图像,修复,或颜色降解.
研究的目的:
- 调查安东尼·德·隆希 (Antoine de Lonhy) 艺术作品中意外出现黑色细节的原因.
- 为了确定这些黑色区域是故意创建的还是色素改变的结果.
- 探索青色素在文艺复兴时期绘画中的变化.
主要方法:
- 在de Lonhy的绘画中,对选定的细节采用了非侵入性的多分析方法.
- 分析了来自同一时期和地区的其他文艺复兴时期的绘画,这些绘画具有类似的黑色特征.
- 技术包括X射线光光谱 (XRF),光纤可见紫外线扩散反射光谱 (FORS) 和便携式X射线衍射 (XRD).
主要成果:
- 分析结果证实在黑色的区域存在青色素.
- 使用XRF数据的元素映射进一步支持了原始的亚苏里特存在.
- 这些发现表明,这些现为黑色的区域,最初是用青青石涂成蓝色的.
结论:
- 在文艺复兴时期的绘画中,某些区域的变黑不是由于有意的深色,而是由于颜料的改变.
- 蓝色颜料随着时间的推移而变化,导致它失去蓝色,出现黑色.
- 这一发现对受影响的艺术品的解释和审美评价产生了重大影响.
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