Misc.

2008

Epitaxial growth of epsilon iron oxide on mullite found through studies on traditional Japanese stoneware

A Global Road Map for Ceramic Materials and Technologies: Forecasting the Future of Ceramics, International Ceramic Federation - 2nd International Congress on Ceramics, ICC 2008, Final Programme
  • Yoshihiro Kusano
  • ,
  • Tatsuo Fujii
  • ,
  • Jun Takada
  • ,
  • Minoru Fukuhara
  • ,
  • Kazuhiro Yamaguchi
  • ,
  • Kenji Takabatake
  • ,
  • Akira Doi
  • ,
  • Yasunori Iked
  • ,
  • Mikio Takano

First page
4-P-052-1-4-P-052-5
Last page

On traditional Japanese stoneware called "Bizen", we found that ε-Fe O crystallizes epitaxially on needle-like mullite crystals. This interesting reaction occurred when a pellet of Bizen clay powder was heated with rice straw to 1250°C in a stream of N containing 1∼2 vol% of O . It is known that mullite forms from the clay on heating and that the rice straw provides potassium to induce partial melting in the pellet surface. The ε-Fe O -on- mullite particles formed in this molten region, changing their morphology and the relative ε-Fe O -to-mullite orientation with oxygen partial pressure. This discovery suggests morphological controllability of ε-Fe O as a function of oxygen partial pressure. 2 3 2 2 2 3 2 3 2 3

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