文物保护与考古科学
文物保護與攷古科學
문물보호여고고과학
Sciences of Conservation and Archaeology
2014年
2期
16~21
,共null页
何秋菊 吕淑玲 裴亚静 李玉玲 赵瑞廷
何鞦菊 呂淑玲 裴亞靜 李玉玲 趙瑞廷
하추국 려숙령 배아정 리옥령 조서정
曹村窑 铅釉陶 腐蚀物 银釉
曹村窯 鉛釉陶 腐蝕物 銀釉
조촌요 연유도 부식물 은유
Caocun kiln; Lead- glazed pottery; Corrosion products; Silver glaze
河北临漳县曹村窑出土的青黄釉陶器残片表面覆盖着一层有光晕的层状腐蚀物。为了明确这层腐蚀物的来源,以便为后续的考古修复提供参考,采用了显微观察(OM)、能量色散X射线荧光(EDXRF)、X射线衍射(XRD)、拉曼光谱分析(RAMAN)、傅立叶变换红外光谱(FTIR)等方法对该腐蚀物进行了分析。结果表明腐蚀物可分为三层,最上层土褐色,中间金黄色,最下层银白色,主要成分是白铅矿和石英。曹村窑地下埋藏环境很潮湿,釉中的铅离子和土壤中的碳酸根等可溶性盐类在表面析出。沉积物与釉面的接触并不紧密,故水份仍能进入空隙继续溶蚀。反复进行后层次不断增多。达到一定厚度时,由于光线的干涉作用,就产生银白色光泽,氧化铁含量较高时便呈现金黄色甚至土褐色。目前,器物上的“银釉”作为一种历史的记录,一般不予去除,在保存中要注意防潮,防污染。
河北臨漳縣曹村窯齣土的青黃釉陶器殘片錶麵覆蓋著一層有光暈的層狀腐蝕物。為瞭明確這層腐蝕物的來源,以便為後續的攷古脩複提供參攷,採用瞭顯微觀察(OM)、能量色散X射線熒光(EDXRF)、X射線衍射(XRD)、拉曼光譜分析(RAMAN)、傅立葉變換紅外光譜(FTIR)等方法對該腐蝕物進行瞭分析。結果錶明腐蝕物可分為三層,最上層土褐色,中間金黃色,最下層銀白色,主要成分是白鉛礦和石英。曹村窯地下埋藏環境很潮濕,釉中的鉛離子和土壤中的碳痠根等可溶性鹽類在錶麵析齣。沉積物與釉麵的接觸併不緊密,故水份仍能進入空隙繼續溶蝕。反複進行後層次不斷增多。達到一定厚度時,由于光線的榦涉作用,就產生銀白色光澤,氧化鐵含量較高時便呈現金黃色甚至土褐色。目前,器物上的“銀釉”作為一種歷史的記錄,一般不予去除,在保存中要註意防潮,防汙染。
하북림장현조촌요출토적청황유도기잔편표면복개착일층유광훈적층상부식물。위료명학저층부식물적래원,이편위후속적고고수복제공삼고,채용료현미관찰(OM)、능량색산X사선형광(EDXRF)、X사선연사(XRD)、랍만광보분석(RAMAN)、부립협변환홍외광보(FTIR)등방법대해부식물진행료분석。결과표명부식물가분위삼층,최상층토갈색,중간금황색,최하층은백색,주요성분시백연광화석영。조촌요지하매장배경흔조습,유중적연리자화토양중적탄산근등가용성염류재표면석출。침적물여유면적접촉병불긴밀,고수빈잉능진입공극계속용식。반복진행후층차불단증다。체도일정후도시,유우광선적간섭작용,취산생은백색광택,양화철함량교고시편정현금황색심지토갈색。목전,기물상적“은유”작위일충역사적기록,일반불여거제,재보존중요주의방조,방오염。
A layer of halo - like layered corrosion products has been observed covering green - yellow glazed pottery fragments excavated from the Caocun kiln, Linzhang, Hebei. In order to determine the cause of this corrosion layer and provide a reference for future archaeological restorations, the products were analyzed by optical microscopy (OM), energy dispersive X- ray fluorescence (EDXRF), X- ray diffraction (XRD), Raman spectroscopy (Raman) and Fourier transform infrared spectroscopy (FTIR). The results showed that the corrosion products could be divided into three layers, the upper was brown, the middle was golden yellow and the lower was silvery white. The white layer was mainly white lead and quartz. The storage environment of Caocun kiln was very wet, which led ions in the glaze and the soluble salts of carbonate from soil to precipitate on the surface. There was space between the sediment and glazed layer so that the water can dissolve . The process repeated itself and so the number of layers increased. When it reached a certain thickness, it presented a silver-white luster due to the interference effects of the light. When the iron oxide content was high, it would be golden yellow or brown. At present, it is suggested that the term "silver glaze" should be removed as part of the historical record. Moisture and pollution should be avoided during storage.