Synthesis, properties and uses of chromium-based pigments from the Manufacture de Sevres

Chromium (Cr) is at the origin of a wide variety of coloration (green, pink and brown) in porcelain glazes from the French Manufacture de Sevres. This element was introduced for the first time at the factory in 1804, just a few years after its discovery by Louis-Nicolas Vauquelin. Pigments for glazes were developed at the laboratory of the factory, leading to a palette of 76 references. While the synthesis protocol and the nature of the precursors of these pigments are kept in laboratory notebooks, the products have never been fully studied. In this work, the pigments composed of Cr were characterized by X-ray diffraction (XRD), UV-visible spectroscopy and X-ray absorption near edge structure spectroscopy (XANES). The analyses reveal the presence of common crystalline phases, and open new perspectives for the synthesis of pigments containing chromium at the Manufacture de Sevres. (C) 2017 Elsevier Masson SAS. All rights reserved.

在法国塞夫尔瓷器厂的瓷釉中，铬（Cr）是多种颜色（绿色、粉色和棕色）的来源。1804年，也就是路易 - 尼古拉·沃克兰发现铬之后的几年，这种元素首次被引入该厂。该厂实验室研发了用于瓷釉的颜料，形成了包含76种参考色的色彩体系。虽然这些颜料的合成方法和前体的性质都记录在实验室的笔记本中，但这些产品从未被充分研究过。在这项工作中，通过X射线衍射（XRD）、紫外 - 可见光谱和X射线吸收近边结构光谱（XANES）对含铬颜料进行了表征。分析揭示了常见晶相的存在，并为塞夫尔瓷器厂合成含铬颜料开辟了新的前景。（C）2017爱思唯尔马松公司。版权所有。