The State of Xi was a small kingdom in ancient times located between the Yangtze River and Huaihe River. It was overturned by leaders from the State of Chu in 680 B.C. This bronze basin, the only unearthed relic from ...The State of Xi was a small kingdom in ancient times located between the Yangtze River and Huaihe River. It was overturned by leaders from the State of Chu in 680 B.C. This bronze basin, the only unearthed relic from the State of Xi, is 21 centimeters in girth, has a lid with a bugle-shaped handle and two symmetrical handles on the sides. The bottom of the basin is engraved with the characters meaning "Xing, the king of the State Xi has this as his food basin."展开更多
The typical morphology of alloy lead（Pb） in ancient bronzes made in the Spring-Autumn Warring States Period（770 B.C.-221 B.C.）,China,was examined by using electron microscopic techniques.We propose that the main p...The typical morphology of alloy lead（Pb） in ancient bronzes made in the Spring-Autumn Warring States Period（770 B.C.-221 B.C.）,China,was examined by using electron microscopic techniques.We propose that the main purposes for adding metallic Pb in a large quantity into ancient bronzes,such as arrows and ritual vessel-Ding,were for increasing weight and economical reasons.In order to promote adding efficiency and improve casting quality for getting homogenously distributed Pb particles in the bronzes,a process through inserting Pb rod into the mold is supposed to be used during casting,which provided a process for preventing Pb sinkage.Scanning electron microscope（SEM） observations from the fracture surface of the bronzes revealed that the Pb particle possessed a ＂hollow-cored bubble＂ structure,which was formed due to absorbing casting gases during solidification and therefore indirectly eliminated the casting porosity and loosen.展开更多
文摘The State of Xi was a small kingdom in ancient times located between the Yangtze River and Huaihe River. It was overturned by leaders from the State of Chu in 680 B.C. This bronze basin, the only unearthed relic from the State of Xi, is 21 centimeters in girth, has a lid with a bugle-shaped handle and two symmetrical handles on the sides. The bottom of the basin is engraved with the characters meaning "Xing, the king of the State Xi has this as his food basin."
基金Supported by the National Natural Science Foundation of China(J1210061)
文摘The typical morphology of alloy lead（Pb） in ancient bronzes made in the Spring-Autumn Warring States Period（770 B.C.-221 B.C.）,China,was examined by using electron microscopic techniques.We propose that the main purposes for adding metallic Pb in a large quantity into ancient bronzes,such as arrows and ritual vessel-Ding,were for increasing weight and economical reasons.In order to promote adding efficiency and improve casting quality for getting homogenously distributed Pb particles in the bronzes,a process through inserting Pb rod into the mold is supposed to be used during casting,which provided a process for preventing Pb sinkage.Scanning electron microscope（SEM） observations from the fracture surface of the bronzes revealed that the Pb particle possessed a ＂hollow-cored bubble＂ structure,which was formed due to absorbing casting gases during solidification and therefore indirectly eliminated the casting porosity and loosen.
