3 edition of Tests of the performance of coatings for low ice adhesion found in the catalog.
Tests of the performance of coatings for low ice adhesion
by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va
Written in English
|Statement||David N. Anderson and Allen D. Reich.|
|Series||NASA technical memorandum -- 107399|
|Contributions||Reich, Allen D., United States. National Aeronautics and Space Administration.|
|The Physical Object|
Adhesive coating failure arises when various internal or external forces overcome the resistance provided by work of adhesion and other energy dissipation mechanisms. Typical examples include blistering and slow or fast delamination (eg flaking and impact damage). Furthermore a loss of adhesion under wet conditions can be the precursor to corrosion. Tests used by the coatings Cited by: 7. ATS experts have the resources and the know-how to accurately assess the adhesiveness of client samples using ASTM coating adhesion testing. For over 50 years, we have served numerous industries such as automotive, manufacturing, military, nuclear, and aerospace in the examination and inspection of materials and structures.
Adhesion testing is a valuable indicator for determining how well paints and coatings are bonded to the substrate on which they are applied. Failure to remain intact and adherent to the substrate can result in serious operation issues with economic losses. Optical Performance Testing and Evaluation The first test to be performed when the coating run is vented is a visual one that inspects the work and witness parts for stress cracking, spontaneous adhesion fail-ure, color clarity, particulate inclusion and haziness, and general appearance unifor-mity. Witness test samples dedicated toFile Size: KB.
Unfortunately, ice sticks very strongly to many structural materials – aluminium, for example, has an ice adhesion strength of kPa. Researchers have created coatings with ice. In this work we examine the relationships between water wettability and ice adhesion strength on nominally smooth bare and coated steel discs. The Wenzel roughness for these surfaces (i.e., the actual surface area/ occluded surface area) is. r test coatings with a broad range of substrate-waterCited by:
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Tests of the Performance of Coatings for Low Ice Adhesion David N. Anderson NASA Lewis Research Center Cleveland, Ohio and Allen D. Reich BFGoodrich R&D Center Brecksville, Ohio Abstract This paper reports studies of the performance of low-ice-adhesion coatings by NASA Lewis and BFGoodrich.
Studies used impact ice accreted both in the NASA Lewis. Tests of the performance of coatings for low ice adhesion. A review of surface engineering issues critical to wind turbine performance.
Renewable and Sustainable Energy Reviews, Vol. 13, No. Measurements of Ice Adhesion over Ice Mitigation Coatings Pertinent to Aircraft Icing and Anti-/De-Icing. This paper reports studies of the performance of low-ice-adhesion coatings by NASA Lewis and BFGoodrich.
Studies used impact ice accreted both in the NASA Lewis Icing Research Tunnel (IRT) and in the BFGoodrich Icing Wind Tunnel (IWT) and static ice in a BFGoodrich bench-top parallel-plate shear rig. Early tests at NASA Lewis involved simple qualitative evaluations of the ease of removing.
The adhesion strength of a glaze ice sample, grown as described above, on 20 uncoated Al T substrates was measured under nominally identical ice preparation and adhesion test conditions (−5 °C) to evaluate the repeatability of the preparation and test by: conditions and with the same ice adhesion test.
Figure 2 clearly indicates that simply stating the ice adhesion strength of different low ice adhesion surfaces without considering the ice type gives inaccurate and flawed comparisons. Fig. 2 Results of ice adhesion tests performed at AMIL for three. Coatings with anti-icing performance possess hydrophobicity and low ice adhesion strength, which delay ice formation and make ice removal easier.
In this paper, the anti-icing performance of nano/microsilica particle-filled amino-terminated PDMS (A-PDMS)-modified epoxy coatings was investigated.
In the process, the influence of the addition of A-PDMS on the hydrophobicity and ice adhesion strength Author: Qiang Xie, Tianhui Hao, Jifeng Zhang, Chao Wang, Rongkui Zhang, Hui Qi. Anderson and A. Reich, “ Tests of the performance of coatings for low ice adhesion,” Technical Memorandum14 ().
Fortin and J. Perron, “ Ice adhesion models to predict shear stress at shedding,” Journal of Adhesion Science and Technol – ().Cited by: 6. ice mitigation coatings which can be applied to prevent or reduce the adhesion of ice on the essential control surfaces.
Measurement of ice adhesion strength through shear test is a common method to evaluate the ice phobic performance of such coatings. In the present study, a static ice shear testingFile Size: 1MB. Read more. Coatings with anti-icing performance possess hydrophobicity and low ice adhesion strength, which delay ice formation and make ice removal easier.
In this paper, the anti-icing performance of nano/microsilica particle-filled amino-terminated PDMS (A-PDMS)-modified epoxy coatings was investigated. This simple test requires the use of a utility knife to pick at the coating. It establishes whether the adhesion of a coating to a substrate or to another coating (in multi-coat systems) is at a generally adequate level.
Performance is based on both the degree of difficulty to remove the coating from the substrate and the size of removed coating.
Using the knife and cutting guide, two cuts are made into. Get this from a library. Tests of the performance of coatings for low ice adhesion. [David N Anderson; Allen D Reich; United States. National Aeronautics and Space Administration.]. Tests of the performance of coatings for low ice adhesion (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: David N Anderson; Allen D Reich; Lewis Research Center.
A laboratory test method for evaluating ice adhesion has been developed employing a commercially available instrument normally used for dynamic mechanical analysis (TA RSA-III). This is the first laboratory ice adhesion test that does not require a custom-built apparatus.
The upper grip range of ∼10 mm is an enabling feature that is essential for the by: Bend Test and the Peel Test (TexI) to evaluate coating adhesion. The Bend Test is not appropriate for adhesion evaluation and the Peel Test is very Size: 1MB.
Correlations between low ice adhesion strength and wettability. Table 1 shows the measurements of water contact angle, roughness, water adhesion force, and ice adhesion strength on Cited by: A new approach for anti-icing materials has been created to combat the effects of ice accretion and adhesion.
The concept combines the strengths of individual characteristics for low ice adhesion. The performance of low ice adhesion or icephobic coatings might be improved by adding a mechanical energy component via an underlying low powered electro-deformable substrate.
The strain could be generated with many types of smart actuators consisting of piezoelectric devices, shape memory alloys (SMAs), conductive polymers, or ionic membrane polymer composites (IMPCs).Cited by: The double lap shear (DLS) test following ASTM D was again used to quantify the ice adhesion performance of several related coatings and that of the optimal coating on different surfaces.
Coating adhesion of polycarbonate is known to be critical and many studies have been carried out to improve the coating adhesion on polycarbonate. 35–37 Therefore, the methods for evaluating adhesion are expanded as well. However, in the optical industry, crosshatch and peel test is one of the common methods for evaluating the coating adhesion.
38, 39 The cutter contains multiple and equally. Adhesion Testing Technical Bulletin MANUFACTURER Raven Lining Systems.
st Street, Suite A Broken Arrow, OK () COATING ADHESION TESTING. The adhesion of a coating to a substrate may be tested according to ASTM D. The more adhesion the better. Since this is a qualitative test, a frame of reference is valuable, if possible.
For instance, measure adhesion of a roof coating to a substrate with and without a primer; or compare two different cleaning methods; or compare two or more different products (perhaps a polyurethane and an acrylic).adhesion ability of the coating.
Keeping in mind all the different factors that affect the performance of adhesion, the finisher must make sound decisions on the coating Finish coatings system adhesion and test methods By Phil Stevenson Testing adhesion properties of a finish coating will ensure a successful performance from the product.
Ask File Size: KB.Ice-adhesion properties were evaluated for coating systems based on titanium nitride applied via cathodic-arc physical vapor deposition developed for rotorcraft erosion caps.
The ice-adhesion strength of titanium nitride and titanium aluminum nitride was determined experimentally and compared to the ice-adhesion strength of uncoated metallic materials currently used on rotor-blade leading-edge Cited by: