کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7835315 1503532 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laser versus scalpel cleaning of crustose lichens on granite
ترجمه فارسی عنوان
لیزر در مقابل تمیز کردن اسکنال از لیسه های خاکستری بر روی گرانیت
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
The cleanings were evaluated by optic and electronic microscopies, FTIR and colour spectrophotometry. A previous characterization of the lichen and its interaction with the granite using those analytical techniques were also performed. The laser cleaning effectiveness depends on the coverage and the colour of the lichen; also, the prior mechanical weakening of the lichen by scalpel seemed to improve the laser cleaning. The darkest lichen was satisfactorily removed by laser and with the combined cleaning. Conversely, the lightest lichen was more difficult to extract with laser than the darkest lichen, being necessary to apply both methods sequentially. Despite laser and the combination of methods cleaned satisfactorily the surface, they were unable to eliminate the thalli into fissures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 440, 15 May 2018, Pages 467-476
نویسندگان
, , , , ,