Three-dimensional microstructure of ε-Fe2O3 crystals in ancient Chinese sauce glaze porcelain revealed by focused ion beam scanning electron microscopy
Three-dimensional microstructure of ε-Fe2O3 crystals in ancient Chinese sauce glaze porcelain revealed by focused ion beam scanning electron microscopy
复制标题
聚焦离子束扫描电子显微镜揭示中国古代酱釉瓷器中ε-Fe2O3晶体的三维微观结构
DOI：
10.1021/acs.analchem.9b03244
复制
发表时间：
2019
影响因子：
7.4
通讯作者：
Xiangjun Wei
中科院分区：
文献类型：
--
作者：
Lihua Wang;Yu Wang;Maolin Zhang;Qijiang Li;Junming Wu;Zhen Liu;Li Li;Xiangjun Wei
近年来，中国古代酱料釉瓷器因釉中发现了ε-Fe 2 O3晶体而受到越来越多的关注。本文首次证实了南宋江西七里镇窑烧成酱料釉瓷中存在大量的ε-Fe_2 O_3微晶。采用聚焦离子束扫描电子显微镜（FIB-SEM）对ε-Fe 2 O3微晶的三维微观结构进行了研究，发现釉下存在三层结构，分别为LY 1、LY 2和LY 3。具体而言，LY 1由具有微米级高度有序分支的明确的树枝状分形结构组成，LY 2具有纳米级的球形或不规则形状的颗粒，而LY 3由具有四个、六个或八个初级分支的树枝状晶体组成，范围从几个纳米到约1 μm。根据这些发现，我们提出了中国古代酱料釉中ε-Fe 2 O3微晶可能的生长过程。
Ancient Chinese sauce glaze porcelain has recently received growing attention for the discovery of epsilon iron oxide (ε-Fe2O3) crystals in glaze. In this work, we first confirm the presence of ε-Fe2O3microcrystals, in large quantiteis, in sauce glaze porcelain fired at the Qilizhen kiln in Jiangxi province during the Southern Song dynasty. We then employed focused ion beam scanning electron microscopy (FIB-SEM) to investigate the three-dimensional microstructure of ε-Fe2O3microcrystals, which revealed three well-separated layers (labeled, respectively, as LY1, LY2, and LY3 from the glaze surface to inside) under the glaze surface. Specifically, LY1 consists of well-defined dendritic fractal structure with high ordered branches at micrometers scale, LY2 has spherical or irregular-shaped particles at nanometers scale, while LY3 consists of dendrites with four, six, or eight primary branches ranging from several nanometers to around 1 μm. Given these findings, we proposed a process for the possible growth of ε-Fe2O3microcrystals in ancient Chinese sauce glaze.