British Museum Research on Bronze Corrosion & Coloring Lessons
大英博物馆青铜锈生成机理研究与着色启示
标签：大英博物馆, 锈层研究, 氯化铜绿, 器物着色, 机理
大英博物馆对"青铜病"（碱式氯化铜 Cu₂(OH)₃Cl 的循环腐蚀）的系统研究反哺着色工艺：研究表明氯化物锈呈"疣状"分层生长，湿度 >55% 时自催化扩展。当代雕塑家据此发展"病态绿"着色法——先以 3% 氯化铵湿敷 48 h 生成疣状碱式氯化铜，再用 2% 硫化铜液点染收色，干燥后封护并控湿 <45%。该法已在 1:1 复刻病态锈面考古铜器的雕塑作品中稳定运用。
The British Museum's studies of "bronze disease" (cyclic corrosion of basic copper chloride, Cu₂(OH)₃Cl) feed back into art patina: chloride crusts grow in warty strata and self-propagate above 55% RH. Artists built a "diseased green" recipe — a 48 h wet poultice of 3% ammonium chloride for warty basic chloride, spot-toned with 2% copper sulfide, then sealed and kept below 45% RH. It now reliably serves 1:1 sculptural replicas of diseased archaeological surfaces. ---