使用罗马硬币作为铜来源的埃及蓝色的维特鲁维乌斯式合成
Maria Cristina Caggiani1, Philippe Colomban2, Ludovic Bellot-Gurlet2
1Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Catania, Corso Italia 57, 95129 Catania, Italy.
概括
研究人员成功地用罗马硬币上的铜片合成了埃及蓝色颜料,模仿古老的生产方法. 这项研究验证了历史记录,并探讨了核化剂在铜岩结晶中的作用.
科学领域:
- 材料科学 材料科学 材料科学
- 考古测量考古测量方法
- 化学 化学 化学
背景情况:
- 埃及蓝色是第一个合成颜料之一,历史上使用特定的操作链生产.
- 之前的合成尝试主要使用了马拉或氧化铜,与提及铜片的历史描述有所不同.
- 重建原始的生产过程对于理解古代技术至关重要.
研究的目的:
- 为了研究埃及蓝色的合成,使用来自罗马硬币的铜片,正如维特鲁维乌斯所描述的那样.
- 为了比较从硬币片中获得的结果与马拉和考古样本的结果.
- 为了评估埃及蓝粒作为合成中的核化剂的影响.
主要方法:
- 合成埃及蓝色使用铜片从罗马硬币和马拉.
- 使用光学显微镜,光谱色度测量和可见诱导发光 (VIL) 进行合成颜料的表征.
- 通过拉曼光谱和X射线衍射 (XRD) 详细分析有前途的产品.
- 在现场监测火烧期间的变化,使用拉曼光谱.
主要成果:
- 使用含有杂质的硬币进行合成,结果是铜酸盐,而不是埃及蓝.
- 通过使用更纯的硬币和埃及蓝核化剂,成功合成了埃及蓝 (cuprorivaite).
- 初步分析有助于识别和丢弃不兼容的产品.
- 现场拉曼光谱检测显示,监测异质混合物中的高温转换具有挑战性.
结论:
- 来自罗马硬币的铜片可以用来合成埃及蓝色,支持历史记载.
- 杂质的存在 (如) 显著影响合成结果.
- 埃及蓝色核化剂有助于铜岩的结晶.
- 现场高温监测这种合成,带来了重大的技术挑战.
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