Depth profiling of surface degradation of silicone rubber composite insulators by remote laser-induced breakdown spectroscopy

2021 ◽  
pp. 106206
Author(s):  
Taisei Homma ◽  
Akiko Kumada ◽  
Takashi Fujii ◽  
Hiroya Homma ◽  
Yuji Oishi
Keyword(s):  
Silicone Rubber ◽  
Depth Profiling ◽  
Laser Induced Breakdown Spectroscopy ◽  
Surface Degradation ◽  
Breakdown Spectroscopy ◽  
Rubber Composite ◽  
Laser Induced Breakdown

Depth Profiling of Solar Cells Using Laser-Induced Breakdown Spectroscopy (LIBS)

2020 ◽  
pp. 439-446
Author(s):  
Fatima Zohra Hamdani ◽  
Sid Ahmed Beldjilali ◽  
Mohamed Amine Benelmouaz ◽  
Sabrina Messaoud Aberkane ◽  
Kenza Yahiaoui ◽  
...  
Keyword(s):  
Solar Cells ◽  
Depth Profiling ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

scholarly journals A Quick Classifying Method for Tracking and Erosion Resistance of HTV Silicone Rubber Material via Laser-Induced Breakdown Spectroscopy

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1087 ◽  
Author(s):  
Ping Chen ◽  
Xilin Wang ◽  
Xun Li ◽  
Qishen Lyu ◽  
Naixiao Wang ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
Erosion Resistance ◽  
Performance Enhancement ◽  
Filler Content ◽  
Principal Component ◽  
Laser Induced Breakdown Spectroscopy ◽  
Rubber Material ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Resistance Performance

Silicone rubber material is widely used in high-voltage external insulation systems due to its excellent hydrophobicity and hydrophobicity transfer performance. However, silicone rubber is a polymeric material with a poor ability to resist electrical tracking and erosion; therefore, some fillers must be added to the material for performance enhancement. The inclined plane test is a standard method used for evaluating the tracking and erosion resistance by subjecting the materials to a combination of voltage stress and contaminate droplets to produce failure. This test is time-consuming and difficult to apply in field inspection. In this paper, a new and faster way to evaluate the tracking and erosion resistance performance is proposed using laser-induced breakdown spectroscopy (LIBS). The influence of filler content on the tracking and erosion resistance performance was studied, and the filler content was characterized by thermogravimetric analysis and the LIBS technique. In this paper, the tracking and erosion resistance of silicone rubber samples was correctly classified using principal component analysis (PCA) and neural network algorithms based on LIBS spectra. The conclusions of this work are of great significance to the performance characterization of silicone rubber composite materials.

scholarly journals In‐situ and quantitative analysis of aged silicone rubber materials with laser‐induced breakdown spectroscopy

High Voltage ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 140-146 ◽  
Author(s):  
Wang Xilin ◽  
Hong Xiao ◽  
Chen Ping ◽  
Zhao Chenlong ◽  
Jia Zhidong ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Silicone Rubber ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

scholarly journals Analysis of Rock Varnish from the Mojave Desert by Handheld Laser-Induced Breakdown Spectroscopy

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5200
Author(s):  
Russell S. Harmon ◽  
Daria Khashchevskaya ◽  
Michelle Morency ◽  
Lewis A. Owen ◽  
Morgan Jennings ◽  
...  
Keyword(s):  
Mojave Desert ◽  
Depth Profiling ◽  
Optical Emission ◽  
Field Studies ◽  
In Situ Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Rock Varnish ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a form of optical emission spectroscopy that can be used for the rapid analysis of geological materials in the field under ambient environmental conditions. We describe here the innovative use of handheld LIBS for the in situ analysis of rock varnish. This thinly laminated and compositionally complex veneer forms slowly over time on rock surfaces in dryland regions and is particularly abundant across the Mojave Desert climatic region of east-central California (USA). Following the depth profiling examination of a varnished clast from colluvial gravel in Death Valley in the laboratory, our in situ analysis of rock varnish and visually similar coatings on rock surfaces was undertaken in the Owens and Deep Spring valleys in two contexts, element detection/identification and microchemical mapping. Emission peaks were recognized in the LIBS spectra for the nine elements most abundant in rock varnish—Mn, Fe, Si, Al, Na, Mg, K, Ca and Ba, as well as for H, Li, C, O, Ti, V, Sr and Rb. Focused follow-up laboratory and field studies will help understand rock varnish formation and its utility for weathering and chronological studies.

Sign in / Sign up

Export Citation Format

Share Document