Research on the Porcelain Making Technology of Yaozhou Kiln with Different Glaze Colors Excavated from Xianyang International Airport in Xi'an
Yaozhou kiln was one of the famous kilns in the ancient North China.Its porcelainmaking technology reached the heyday in the Song Dynasty.There were many varieties of exquisite porcelain produced in Yaozhou Kiln,occupying a very important position in the history of ancient ceramics in China.Traditional research on Yaozhou kiln porcelain mainly mostly focused on the chemical composition and firing process of single-color glazed porcelain.There were few horizontal comparisons on the microstructure,formulation process and development law of different glazed porcelain at the same time.Herein,various analytical techniques,including the optical microscopy,wavelength dispersion X-ray fluorescence spectroscopy(EDXRF),X-ray diffraction,infrared spectroscopy and thermodilatometric analysis,were used to analyze the microstructures,phases,chemical composition and sintering temperature of the enamel fragments of black glaze,white glaze,celadon glaze and brown glaze excavated at Xianyang International Airport of Xi'an.The microstructures,major chemical composition and firing process of porcelain with different glaze colors were explored and compared.The firing temperature was also discussed based on XRD and thermodilatometric analysis.It demonstrated that clay was the main raw materials for this batch of ceramics produced.These ancient ceramics with different glaze colors showed the typical characteristics of high aluminum and low silicon,and glaze formulation process were also not in the same route.Black and brown glaze belongs to the iron glaze.Celadon glaze was the typical calcium glaze,and white glaze was the calcium-alkali glaze or alkali-calcium glaze formulation system.The sintering temperature of different porcelains with various colors was different.Except of brown glaze below 1000℃,the firing temperature of most ceramics was around 1160℃,which belonged to the traditional high temperature colored glaze.The results showed an important scientific value for understanding of the technological level,developing properties and laws of Yaozhou porcelain in Song Dynasty,which were great significant to inherit and develop the traditional sintering technique of Yaozhou kiln.
Xianyang International Airport of Xi'anYaozhou KilnChemical CompositionMicrostruct-uresEDXRF
万方数据
维普
