还原气氛下低温等离子体去除青铜粉状锈的初步研究
Preliminary study on removal of powdery bronze rust by low temperature plasma in a reducing atmosphere
龚钰轩 1夏金涛 2李超洋 3杨旭鹏 4李家星 5孙福维5
作者信息
- 1. 江苏科技大学科学技术史研究所,江苏镇江 212100;中国科学技术大学先进技术研究院,安徽 合肥 230031
- 2. 中国科学技术大学先进技术研究院,安徽 合肥 230031
- 3. 山西省考古研究院,山西太原 030001
- 4. 青岛市文物保护与考古研究所,山东青岛 266000
- 5. 中国科学技术大学先进技术研究院,安徽 合肥 230031;中国科学院等离子体物理研究所,安徽 合肥 230031
- 折叠
摘要
青铜器是金属类文物的重要组成部分,具有极高的历史价值、艺术价值和科学价值.然而由于青铜器自身材质的特性,加之受埋藏环境因素的影响,考古发掘出土的青铜器文物大多锈蚀严重.青铜器的锈蚀主要可分为有害锈和无害锈,无害锈比较稳定对青铜器文物相对无害.而"粉状锈"作为一种对青铜器危害极大的有害锈,其会使青铜器文物酥粉、糟朽,严重影响文物的保存寿命.同时粉状锈还具有一定的传播力,可在青铜器文物自身和青铜器文物间造成损害.因此,本研究首次尝试将低温等离子体技术引入青铜器粉状锈的去除研究中,通过电化学腐蚀制备表面附着粉状锈的青铜样品,并于还原气氛下对样品进行低温等离子体处理,进而通过对比处理前后青铜样品的表征数据,证明低温等离子体技术对去除粉状锈中Cl离子的有效性,以期为青铜器文物保护提供新的思路和方法.
Abstract
Bronze ware,having high historical,artistic and scientific value,plays an important role in metal cultural relics.However,due to the characteristics of natural materials themselves and the influence of the burial environment,most bronze artifacts unearthed from archaeological sites or cemeteries have been seriously degraded and corroded.The corrosion of bronze ware can be divided into two types-harmful rust and harmless rust;the latter is relatively stable and harmless to bronze artifacts.However,"powdery rust"is severely detrimental to bronzes,and can make the bronzes crumble and rot,thereby seriously affecting the life of the relics.Furthermore,powdery rust also has a certain spreading power,which can cause damage to the bronze relics themselves and the neighboring ones.Therefore,we attempted for the first time to introduce low-temperature plasma technology as a means of removing powdery rust from bronzes.Bronze samples with powdery rust on the surface were prepared by electrochemical corrosion.Then the samples were treated with low temperature plasma in a reducing atmosphere.Comparison of data of bronze samples before and after the treatment shows that the low-temperature plasma technology could effectively remove chloride ions in the powder rust.This study could provide a new idea and method for the conservation of bronze relics.
关键词
低温等离子体/青铜器/粉状锈Key words
Low temperature plasma/Bronze ware/Powdery rust引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据