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Research on Corrosive Mechanism of Lead-Tin Based Alloy Cultural Relics of Warring States in Hubei Province |
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中国科学技术大学科技史与科技考古系 |
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Abstract The alloys and corrosion products of the Pb - Sn alloy solders, existing in bronxes excavated from Jiuliandu site during Warring States Period, were analyzed by using techniques of energy spectrum, X- ray powder diffraction, X - ray fluorescence spectrometry and metallurgical analysis , etc. The analysis indicated that corrosive products that were composed of PbCO3, Pb and SnO2 were compact and firm, and the buried circumstance, with the neutral pH and the high content of HCO3-,was relatively isolated, which had cooperated to hinder the corrosion of Pb - Sn solders to keep bronzes in good figure.
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Received: 12 December 2005
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