[nanoPost] Barrier coatings

Company USA

Based on its unique characteristics and demonstrated performance, it represents a new development in ceramic/glass science with excellent commercial potential for a broad range of applications to include corrosion protection, hydrophobic/non–wetting/nonstick surfaces, high temperature oxidation protection, high emissivity coatings, protection for molten metal processing equipment, and protective coatings for bioceramic materials.

Current product development efforts in collaboration with over 20 Fortune 500 companies are targeted toward defense, energy, space, industrial, and consumer applications. A new family of nanocomposite films and materials can be produced with encapsulated nanoinclusions, within the product matrix, of varying chemistries to induce/enhance desirable optical, mechanical, electrical, and chemical properties.

The product is resistant to crystallization above 1400ºC and can be synthesized as a) hermetic films on metal/alloy, glass, and ceramic substrates, b) nanocomposite powders, and c) fibers, coatings, and matrices for CMCs. Using a low-cost, stable, low-viscosity, and clear precursor solution, a dense, smooth, hermetic, and transparent film can be produced on substrates by dip/spray/spin/brush/flow coating techniques. A brief curing step above 500ºC is needed to form the thermally stable "glassy" coating material.

The key attribute of The product  is its low oxygen diffusivity (chemical diffusivity estimated to be ~ 1 x 10–10 cm2/sec at 1400ºC). In addition to high temperature oxidation protection, The product  has been shown to protect against molten salt corrosion.