Alchemy in the Art of Traditional Japanese Ceramics: Microstructure and Formation Mechanism of Gold-Colored Bizen Stoneware
Alchemy in the Art of Traditional Japanese Ceramics: Microstructure and Formation Mechanism of Gold-Colored Bizen Stoneware
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日本传统陶瓷艺术中的炼金术：备前金色陶器的微观结构与形成机制
DOI：
10.1021/acs.cgd.8b00368
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发表时间：
2018
影响因子：
3.8
通讯作者：
M.Takano
中科院分区：
文献类型：
--
作者：
Y.Kusano;M.Fukuhara;T.Fujino;T.Fujii;J.Takada;M.Takano
通过模型实验，研究了日本备前传统石器金黄色的微观结构和形成过程。目前对陶器碎片成分和结构的研究表明，金黄色来自于由约100 nm厚的Al取代的赤铁矿（α-（Fe 1-xAlx）2 O3，x ≤ 0.05）团聚体组成的氧化铁。在实验室中，通过在氧化和还原气氛下对备前粘土颗粒进行顺序热处理，并以一定量的钾作为熔点指示剂，颜色是可再现的。备前石器中的银和金等明亮的颜色通常归因于燃烧木材燃料产生的表面碳膜中的光学干涉。在这里，我们表明，金色是由铝取代的赤铁矿的形成，而不是由碳的形成。
The microstructure and formation process of the golden color on traditional Japanese Bizen stoneware was investigated through model experiments. The current compositional and structural research of pottery fragments has revealed that the golden color comes from Fe oxide consisting of approximately 100 nm thick agglomerates of Al-substituted hematite (α-(Fe1–xAlx)2O3,x≈ 0.05). The color is reproducible in the laboratory by sequential heat treatments of Bizen clay pellets under oxidizing and reducing atmospheres with an amount of potassium supplied as a melting point depressant. Lustrous colors such as silver and gold in Bizen stoneware have generally been attributed to the optical interference in superficial carbon films produced by burning wood fuel. Here, we show that the golden color is caused by the formation of Al-substituted hematite, not by the formation of carbon.