Composition, coating, coated article, and method

• Main Authors: LOU VICTOR LIENKONG, VAIDHYANATHAN BALASUBRAMANIAM, RAMASESHA SHEELA KOLLALI, DALAKOS GEORGE THEODORE, CHANDRAN RAMACHANDRAN GOPI, VENKATARAMANI VENKAT SUBRAMANIAM
• Format: Patent
• Language: English
• Published: 27.09.2007
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

A processing apparatus for use in a corrosive operating environment at a temperature range of 25-1500° C. is provided. The apparatus has an NZP or an NZP-type coating, which comprises a first composition, a second composition, and a metal cation. The first composition and the second composition form a crystalline structure with three-dimensional network of octahedra and tetrahedra linked by one or more shared atoms. The first composition comprises one or more of Zr, V, Ta, Nb, Hf, Ti, Al, Cr, or a metal of the Lanthanide series. The second composition comprises at least one of phosphorus, silicon, boron, vanadium or aluminum. The one or more shared atoms comprise at least one of oxygen, nitrogen, or carbon. The first composition and the second composition are related as shown by the formula (first composition)2 (second composition)x (shared atom)12-x. The metal cation is disposed within an interstitial site defined by the crystalline structure.