Study on the morphology and structure of ε-Fe2O3 crystals in Chinese sauce wares (960–1279 CE)
Source abstract
Abstract
Sauce glazed wares, one of the most representative Fe-based glazed wares manufactured during the Song Dynasty, are characterized by the yellowish- to reddish-brown color with hue varying with the angle incidence of the light. In this work, representative sauce fragments from different kilns were systematically analyzed by multiple imaging and spectroscopic techniques. The results show that the glaze color is derived from the microsize dendritic ε-Fe 2 O 3 crystals in the glazes. The crystals are distributed in the whole glaze with obvious multi-layers, enhancing the coloring ability. Besides, numerous magnetite were observed in the glaze cross-section, giving rise to darken the glaze. In addition, the dendritic crystals are composed of comb-like secondary branches with an offset of hundreds of nanometers. Such a selective oriented structure could react with the incident light to generate structural color, giving rise to the glaze appearing angular heterochromism.
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Research context
OpenAlex topics: Cultural Heritage Materials Analysis · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
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