Ancient Science of China中国古代科学
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秘色青瓷烧制

Mi-Se Celadon / Secret-Colour Porcelain

Fired above 1300°C in a reducing-flame kiln with precise atmosphere control to produce a vitrified glaze. Europe did not reliably achieve such temperatures until the 18th century. Confirmed by excavated artifacts from the Famen Temple crypt.

秘色青瓷

Scientific Principle

High-temperature chemistry: mullite needle crystals form the structural skeleton. Reducing flame: Fe₂O₃ (reddish-brown) → 2FeO (bluish-green) + ½O₂.