Coatings Technology Handbook, Second Edition

Satas, Donatas; Tracton, Arthur A.; Rafanelli, Anthony J.

doi:10.1115/1.1446069

Cited by 18 publications

(23 citation statements)

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“…The aggregation of Al 2 O 3 particles along the edges of the SS tapes was caused by a rather complicated mass transport process. Liquid (solvent) evaporates at a faster rate at the edges of the coating due to the larger surface area per unit volume of the liquid near the edges [21]. As evaporation of the solvent which usually has a lower surface tension than the polymers continues, a higher surface tension exists at the edges leading to the transport of the suspended materials toward the edges [21].…”

Section: Effect Of the Air Flowmentioning

confidence: 99%

“…Liquid (solvent) evaporates at a faster rate at the edges of the coating due to the larger surface area per unit volume of the liquid near the edges [21]. As evaporation of the solvent which usually has a lower surface tension than the polymers continues, a higher surface tension exists at the edges leading to the transport of the suspended materials toward the edges [21]. The newly formed surface in the middle section of the tape will have a lower surface tension because of the exposure of the underlying material having higher solvent concentration.…”

Section: Effect Of the Air Flowmentioning

confidence: 99%

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Sol-gel-Derived $\hbox{Al}_{2}\hbox{O}_{3}{-} \hbox{SiO}_{2}$ Composite Coating for Electrical Insulation in HTS Magnet Technology

Kandel

Lü

Jiang

et al. 2012

IEEE Trans. Appl. Supercond.

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Electrically insulating Al 2 O 3 −SiO 2 thin coatings have been deposited on long-length 316 stainless steel (SS) tape using a reel-to-reel continuous solgel dip coating process for cowinding insulation into YBCO pancake coils, a hightemperature superconductor magnet technology. Coatings with a thickness of ∼5 μm are achieved after just two dips with a tape withdrawal speed of ∼8 mm/s (0.5 m/min) and a calcination at 700 • C. The coatings are measured to have a room-temperature breakdown voltage of ∼200 V, corresponding to a dc dielectric strength of about 40 MV/m. Consequently, this process has low cost and high throughput and produces a thin electrical insulation with excellent thermal, dielectric, and mechanical properties. A new technique has been developed in the coating process to mitigate Al 2 O 3 particulate aggregation and coating buildup along the edges of the SS tape.

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Section: Effect Of the Air Flowmentioning

confidence: 99%

Section: Effect Of the Air Flowmentioning

confidence: 99%

Sol-gel-Derived $\hbox{Al}_{2}\hbox{O}_{3}{-} \hbox{SiO}_{2}$ Composite Coating for Electrical Insulation in HTS Magnet Technology

Kandel

Lü

Jiang

et al. 2012

IEEE Trans. Appl. Supercond.

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“…Amorphous polymers go through a transition from a glassy state to a flexible state in a temperature range defined as glass transition temperature (Tg). Previous researchers indicated that coatings formulated for exterior wood should penetrate deep into wood and not form any film layer on the top [12,47]. They reported that film-forming coatings will crack and peel from the surface due to stresses caused by dimensional instability of wood when exposed outside [51].…”

Section: Coating Propertiesmentioning

confidence: 99%

“…Paints are commonly used for wooden windows, doors and siding. They usually have the highest durability performance on wood, due to the fact that they contain a high concentration of pigments which protects the wood surface from UV degradation [47]. Varnishes and lacquers are clear film-forming formulations that are not designed for exterior application.…”

Section: Coating Typesmentioning

confidence: 99%

Exterior Wood Coatings

Nejad¹,

Cooper²

2017

Wood in Civil Engineering

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In addition to aesthetic appeal, coatings are designed to protect the wood from weathering degradation in outdoor conditions. This chapter gives an overview of the effects of the main coating components, coating properties, wood properties and treatments on coated wood performance in service. Understanding how different type of resins, pigments, solvents, and other major additives affect coating performance on wood, helps coating formulators to develop more durable coatings. It is beneficial for both wood scientists and coating chemists to learn which properties of coatings have the highest impact on predicting their service lives when exposed to weathering. For instance, measuring glass transition temperature (Tg) defines the degree of flexibility of a coating. Since wood swells and shrinks due to moisture uptake and subsequent drying, flexibility of a coating plays a critical role in defining its durability on wood in exterior conditions. Similarly, learning how preservative treatment or a new modification technique changes the surface properties of wood will help coating formulators to adjust properties of coatings in way that would have better adhesion and performance on that specific modified wood. Also, the effects of these factors in increasing service life of exterior wood coatings are discussed.

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“…A good alternative for this type of protection is found in organic coatings 4,5 . The effectiveness of such coatings is dependent not only on the properties of the coatings but also on the character of the metal substrate, the surface pretreatment and the application procedures 6,7 .…”

Section: Introductionmentioning

confidence: 99%