Fig. 7From: Study on firing temperature of the Song Dynasty (960–1279AD) greenish-white porcelain in Guangxi, China by thermal expansion methodThermal expansion curve of GP-GSC-3 sample (the solid line in the figure is the thermal expansion curve, and the dotted line is the first derivative curve of the thermal expansion curve, and the starting point is the starting temperature at which the abrupt expansion begins on the curve)Back to article page