Le controle de la qualité des enrobés à l'aide de la machine asservie d'essais rhèologiques (Control of coating quality by mechanized Theological testing) F.MOUTIER Laboratoire Central des Ponts et Chaussées, Nantes, France JL.DELORME Laboratorie Régional de L'Est Parisien, Melun, France

1990 ◽  
pp. 250-282
Keyword(s):  
Coating Quality ◽  
Laboratoire Central

Nanosecond laser cleaning for enhanced zinc coating quality of HSLA steel

2021 ◽  
Vol 143 ◽  
pp. 107311
Author(s):  
Lixin Zhu ◽  
Qing Gao ◽  
Bingtao Sun ◽  
Yongjun Ke ◽  
Yang Tan ◽  
...  
Keyword(s):  
Hsla Steel ◽  
Zinc Coating ◽  
Laser Cleaning ◽  
Nanosecond Laser ◽  
Coating Quality

scholarly journals Assessment of Coating Quality Obtained on Flame-Retardant Fabrics by a Magnetron Sputtering Method

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1348
Author(s):  
Pamela Miśkiewicz ◽  
Magdalena Tokarska ◽  
Iwona Frydrych ◽  
Marcin Makówka
Keyword(s):  
Magnetron Sputtering ◽  
Flame Retardant ◽  
Imaging System ◽  
Sample Surface ◽  
Radiant Heat ◽  
Cotton Fabrics ◽  
Point Of View ◽  
Thermal Parameters ◽  
Coating Quality ◽  
Contact Heat

Innovative textile materials can be obtained by depositing different coatings. To improve the thermal properties of textiles, aluminum and zirconium (IV) oxides were deposited on the Nomex® fabric, basalt fabric, and cotton fabric with flame-retardant finishing using the magnetron sputtering method. An assessment of coating quality was conducted. Evenly coated fabric ensures that there are no places on the sample surface where the values of thermal parameters such as resistance to contact heat and radiant heat deviate significantly from the specified ones. Energy-dispersive spectroscopy was used for the analysis of modified fabric surfaces. Non-contact digital color imaging system DigiEye was also used. The criterion allowing one to compare surfaces and find which surface is more evenly coated was proposed. The best fabrics from the point of view of coating quality were basalt and cotton fabrics coated with aluminum as well as basalt fabric coated with zirconia. The probability of occurrence of places on the indicated sample surfaces where the values of thermal parameters (i.e., resistance to contact heat and radiant heat) deviated significantly from the specified ones was smaller for Nomex® and cotton fabrics coated with zirconia and Nomex® fabric coated with aluminum.

Le laboratoire central de transfusion sanguine de la Croix-Rouge néerlandaise

1961 ◽  
Vol 43 (514) ◽  
pp. 485-494
Keyword(s):  
Laboratoire Central ◽  
Transfusion Sanguine

Le laboratoire central du Service de transfusion sanguine de la Croix-Rouge néerlandaise, dont l'origine remonte à 1939, est administré par une Fondation qui réunit le Gouvernement néerlandais, la Croix-Rouge néerlandaise et la municipalité d'Amsterdam. La direction des divers départements et laboratoires a été confiéé à un groupe de médecins, chimistes, pharmaciens et biologistes. Le Laboratoire central, exploité sur une base non commerciale, est le centre médico-technique des services de transfusion sanguine aux Pays-Bas. Il fournit à la plupart des hôpitaux néerlandais les appareils de transfusion sanguine et des dérivés du sang.

Investigations of the Fracture of Composites Matrix-Coating Under Tension

1998 ◽  
Author(s):  
V.E. Panin ◽  
V.A. Klimenov ◽  
S.V. Panin
Keyword(s):  
Steel Matrix ◽  
Matrix Composites ◽  
Coating Quality ◽  
Deformation Stages ◽  
The Matrix ◽  
Sprayed Coating ◽  
Plasma Sprayed

Abstract Deformation stages and specific features were studied by mesomechanical methods under tension of plasma sprayed coating-steel matrix composites. The effect of coating quality on the deformation of the matrix at the mesolevel was revealed. The results obtained make it possible to predict reliability and durability of this kind of coating and of the entire composite.

A Hybrid Image Segmentation Approach for Thermal Barrier Coating Quality Assessments

2021 ◽  
Author(s):  
Zanyah Ailsworth ◽  
Wei-Bang Chen ◽  
Yongjin Lu ◽  
Xiaoliang Wang ◽  
Melissa Tsui ◽  
...  
Keyword(s):  
Image Segmentation ◽  
Thermal Barrier Coating ◽  
Thermal Barrier ◽  
Coating Quality ◽  
Barrier Coating ◽  
Segmentation Approach ◽  
Quality Assessments

Shedding light on coatings: Real-time monitoring of coating quality at industrial scale

2019 ◽  
Vol 566 ◽  
pp. 57-66 ◽  
Author(s):  
Stephan Sacher ◽  
Patrick Wahl ◽  
Michael Weißensteiner ◽  
Matthias Wolfgang ◽  
Yekaterina Pokhilchuk ◽  
...  
Keyword(s):  
Real Time ◽  
Industrial Scale ◽  
Real Time Monitoring ◽  
Coating Quality

CONCLUSION While cleaned silica-based glass surfaces have similar surface compositions, their susceptibility to strongly adsorbing organic contaminant s depends strongly on the glass composition and the cleaning procedure. For the three glass species exam-ined: silica, aluminoborosilicate, and sodalime glass , the glass surfaces behave similarly after chromic acid cleaning. They show significant differences in their properties followin g a dry cleaning procedure, such as pyrolysis or UV/ozone cleaning. The cleaned silica surfaces show a high susceptibility to adsorbing or-ganic contamination following pyrolysis cleaning, while the pyrolyzed sodalime glass appears to be virtually immune to strongly adsorbing organic molecules. Py-rolyzed aluminoborosilicate glass shows an intermediate susceptibility to adsorb-ing organic contaminants. The chromic acid cleaned glass surfaces all show an in-termediate susceptibility to contamination by adsorbed organic molecules. Thus, it may be an oversimplification to consider a clean glass surface as a high energy substrate that is bound to attract ambient organic contamination. The wettability behavior of the cleaned glass surfaces showed features associ-ated with their exposed chemical functions. The non-dispersive interaction energy between glass and water as a function of pH showed evidence of charging of the surface silanol groups. The point of zero charge for these surface chemical func-tions was observed at pH 3. An estimate of the non-dispersive interaction energy between glass and water at the point of zero charge enables a reasonable estima-tion of the density of surface silanol groups on the cleaned glass. The trends ob-served for the surface charge as a function of pH correlate with the observed sus-ceptibility for adsorbing organic contamination to the cleaned glass surfaces. Charge-adsorbed surfactant monolayers indicated a negative surface charge on the cleaned glass, as expected for silica-based glass surfaces at neutral pH. The wettability of grafted self-assembled octadecylsilane monolayers indicated high quality coatings on the cleaned glass surfaces. The coating quality was identical for all three glass species following chromic acid cleaning. The UV/ozone cleaned glass surfaces showed the highest coating quality on the silica surface, followed by the aluminoborosilicate surface and the sodalime glass surface. The trends in coating quality for all chromic acid cleaned surfaces and UV/ozone cleaned surfaces correlate with those seen for susceptibility to organic contamina-tion of the cleaned glass surfaces exposed to unpurified liquid octane. REFERENCES

2003 ◽  
pp. 114-116
Keyword(s):  
Glass Surface ◽  
Chromic Acid ◽  
Point Of Zero Charge ◽  
Coating Quality ◽  
Organic Contamination ◽  
Cleaning Procedure ◽  
Silanol Groups ◽  
Acid Cleaning ◽  
Glass Surfaces ◽  
Uv Ozone
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