The role of the substrate in the laser cleaning process: A study on the laser assisted removal of polymeric consolidation materials from various substrates

2010 ◽  
pp. 35-44 ◽  
Keyword(s):  
Laser Cleaning ◽  
Cleaning Process

Effect of laser cleaning process parameters on the surface roughness of 5754-grade aluminum alloy

2019 ◽  
Vol 105 (5-6) ◽  
pp. 2481-2490 ◽  
Author(s):  
Guangxing Zhang ◽  
Xueming Hua ◽  
Fang Li ◽  
Yuelong Zhang ◽  
Chen Shen ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloy ◽  
Process Parameters ◽  
Laser Cleaning ◽  
Cleaning Process

Role of marble microstructure in near-infrared laser-induced damage during laser cleaning

2004 ◽  
Vol 95 (7) ◽  
pp. 3350-3357 ◽  
Author(s):  
Carlos Rodriguez-Navarro ◽  
Alejandro Rodriguez-Navarro ◽  
Kerstin Elert ◽  
Eduardo Sebastian
Keyword(s):  
Near Infrared ◽  
Infrared Laser ◽  
Laser Cleaning ◽  
Laser Induced Damage

scholarly journals Re-evaluating the roles of the cleaning process in the conservation of paintings

2015 ◽  
Vol 7 ◽  
pp. 14-23 ◽  
Author(s):  
José Manuel Barros García
Keyword(s):  
Twentieth Century ◽  
Cultural Heritage ◽  
Original Work ◽  
Cleaning Process ◽  
Academic Field ◽  
The Subject

At a time when defining the conservation of cultural heritage is undergoing important changes, it is necessary to rethink the roles of the cleaning process applied to paintings. Throughout the nineteenth and the twentieth century, the cleaning of paintings was the subject of continuous controversy which developed both in the academic field and in the pages of newspapers. In general, attempts have been made to define, one way or another, exactly what the role of cleaning should be. Four of these roles have been (and still are): cleaning as a conservation procedure, as revelation (of the original work or of the artist’s intent), as aesthetic presentation, and as a way of improving legibility. This article reviews these roles, their limitations and also raises a number of questions and issues in order to re-evaluate cleaning, taking into account contributions by the new theories of conservation. 

scholarly journals Mechanisms of Ion Detection for FET-Sensors Using FTO: Role of Cleaning Process, pH Sequence and Electrical Resistivity

2017 ◽  
Vol 20 (5) ◽  
pp. 1369-1379 ◽  
Author(s):  
Raphael Aparecido Sanches Nascimento ◽  
Marcelo Mulato
Keyword(s):  
Electrical Resistivity ◽  
Cleaning Process ◽  
Ion Detection

Reducing Wear of Abrasive Wheels Grinding Aerospace Alloys by Laser Assisted Cleaning

2005 ◽  
Author(s):  
Mark J. Jackson ◽  
Xun Chen
Keyword(s):  
Laser Power ◽  
Laser Cleaning ◽  
Grinding Wheel ◽  
Cleaning Process ◽  
Grinding Wheels ◽  
Wheel Surface ◽  
Power Flux ◽  
Aerospace Alloys ◽  
High Laser ◽  
Selection Of

A new method for cleaning loaded grinding wheels is introduced by applying a CO2 laser pulse to the wheel surface. It is shown that effective cleaning can be achieved by the selection of adequate laser power flux and irradiation duration. Fusion and evaporation of clogged chips play an important role in the laser cleaning process and subsequent wear of the grinding wheel. It is suggested that high laser power irradiance of short duration is essential for effective wheel cleaning and reduced wear of the grinding wheel with specially developed bonds.

scholarly journals Assessing Laser Cleaning of a Limestone Monument by Fiber Optics Reflectance Spectroscopy (FORS) and Visible and Near-Infrared (VNIR) Hyperspectral Imaging (HSI)

Minerals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1052
Author(s):  
Costanza Cucci ◽  
Olga De Pascale ◽  
Giorgio S. Senesi
Keyword(s):  
Fiber Optics ◽  
Hyperspectral Imaging ◽  
Near Infrared ◽  
Conservation Status ◽  
Spectral Characteristics ◽  
Imaging Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Laser Cleaning ◽  
Cleaning Process ◽  
Invasive Approach

Fiber optics reflectance spectroscopy (FORS) and visible and near-infrared (VNIR) hyperspectral imaging (HSI) were applied to assess and control the laser cleaning process of a deeply darkened limestone surface collected from the historic entrance gate of Castello Svevo, Bari, Italy. Both techniques enabled us to verify the different degree of removal of a thick deposit of black crust from the surface of the walls. Results obtained were in good agreement with those of previous studies of the elemental composition achieved by application of laser-induced breakdown spectroscopy (LIBS). Coupling FORS and VNIR-HSI provided important information on the optimal conditions to evaluate the conservation status and determine the more appropriate level of cleaning restoration, thus avoiding over- and/or under-cleaning. Imaging spectroscopy was used to obtain maps of areas featuring the same or different spectral characteristics, so to achieve a sufficient removal of unwanted layers, without modifying the surface underneath, and to increase the efficiency of traditional cleaning techniques. The performance of the combined non-invasive approach used in this work shows promise for further applications to other types of rocks and highlights the potential for in situ assessment of the laser cleaning process based on reflectance spectroscopy.

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