• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Laser Cleaning Of 19th Century Congo Rattan Mats
【24h】

Laser Cleaning Of 19th Century Congo Rattan Mats

机译：19世纪刚果藤制草席的激光清洁

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There is a growing interest by art conservators for laser cleaning of organic materials, such as wooden artworks, paper and textiles, since traditional cleaning with solvents can be a source of further decay and mechanical cleaning may be too abrasive for sensitive fibers. In this work we present a successful laser cleaning approach for 19th century rattan mats from the Brooklyn Museum collection of African Art, now part of the study collection at the Conservation Center in New York. Tests were carried out using the fundamental (1064 nm) and second harmonic (532 nm) wavelength of a Q-switched Nd:YAG laser to measure threshold values both for surface damage and color changes for different types of rattan samples. The irradiated substrates were investigated by optical microscopy, scanning electron microscopy and by UV-vis spectroscopy in order to determine the efficiency of laser cleaning and to assess possible deterioration effects that may have occurred as a result of laser irradiation. The study showed that by using the laser emission at 532 nm, a wavelength for which photon energy is below the bond dissociation level of the main cellulosic compounds and the water absorption is negligible, it is possible to select a range of laser fluences to remove the black dust layer without damaging the rattan material.
机译：对于传统的用溶剂进行的清洁可能会进一步腐烂，并且机械清洁对于敏感的纤维来说可能太过磨蚀，因为艺术保护者对于激光清洁有机材料（如木制艺术品，纸张和纺织品）的兴趣日益浓厚。在这项工作中，我们为布鲁克林博物馆收藏的非洲艺术提供了一种成功的19世纪藤垫激光清洗方法，该收藏现在已成为纽约保护中心的研究收藏。使用调Q Nd：YAG激光器的基波波长（1064 nm）和二次谐波（532 nm）进行测试，以测量不同类型的藤制样品的表面损伤和颜色变化的阈值。通过光学显微镜，扫描电子显微镜和紫外-可见光谱对被辐照的基材进行了研究，以确定激光清洁的效率并评估可能由于激光辐照而产生的劣化效果。研究表明，通过使用532 nm的激光发射，该波长的光子能量低于主要纤维素化合物的键解离水平，并且吸水率可以忽略不计，因此可以选择一定范围的激光注量以去除黑色尘土层而不会损坏藤制材料。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号