Abstract:
An insulating coating-attached electrical steel sheet has, on at least one surface, an insulating coating including an insulating tensile coating layer A. A tension applied to the steel sheet by an insulating tensile coating layer having a coating weight of M/2 from a surface of the insulating tensile coating layer A is 0.80×σA or more, where M is a weight of the insulating tensile coating layer A, and σA is the tension applied to the steel sheet by the insulating tensile coating layer A. The insulating coating-attached electrical steel sheet has excellent adhesion of the insulating coating. A method for manufacturing the insulating coating-attached electrical steel sheet is also provided.
Abstract:
Disclosed are barrier coatings for fused silica components used in semiconductor processing. In particular, the present disclosure concerns protective substrate-barrier coatings composed of corrosion-resilient metal compounds which provide superior resistance to erosion/corrosion when a coated substrate is subjected to the acidic environments at elevated temperatures typical for semiconductor processing.
Abstract:
The present invention lies in the fields of chemistry and materials engineering. More specifically, the present invention describes a process of heat treatment of polymeric precursors including as active phases particle charge or a mixture of active phases with inert phases called “fillers”. It is also described a surface including ceramic polymer obtained by said process. The volumetric positive variation resulting from the formation of new phases, which for their formation, incorporate atoms from the gaseous phase, contributes to a minor shrinkage of the composition during the heat treatment process. The process of the present invention allows obtaining the desired phases in smaller treatment times and lower temperatures, when compared to a thermal treatment process as conventional pyrolysis (PC) due to the presence of highly reactive species, as for example atomic nitrogen produced by the dissociation of nitrogen molecules in the plasma environment.
Abstract:
A method is disclosed for preparing a substrate with a coating from a paste comprising the following steps: (a) providing a substrate; (b) preparing a paste from a glass frit to which ferromagnetic pigments and a flux agent are admixed; (c) applying the paste onto a surface of the substrate; (d) aligning the paste by means of a magnetic field; and (e) burning-in of the paste.
Abstract:
A method of treating a metal substrate with an anti-corrosion coating comprising at least the following steps: preparing a solution comprising particles of a precursor of the oxide, dipping at least one surface of the metal substrate into the prepared solution and then removing it from the solution, heat treating the surface of the metal substrate in order to generate oxide nanocrystals from the particles of the precursor and form the anti-corrosion coating, and forming a natural oxide layer between the metal substrate and the anti-corrosion coating, the natural oxide layer being enriched with elements from the oxide nanocrystals of the anti-corrosion coating.
Abstract:
A functionalized nanoporous structure comprising: (a) a matrix that comprises a first sol-based ceramic; and (b) one or more functionalized nanosized pores within the matrix, wherein each functionalized nanosized pore is defined by (i) a coating that comprises a second sol-based ceramic and, optionally, a first functional material; and (ii) a second functional material bound to the coating, wherein the second functional material is optional if the coating comprises the first functional material; and (c) optionally, a hybrid component that comprises one or more particles of a composition different from that of the matrix.
Abstract:
A process for coating an article includes the steps of contacting an article with a first solution to produce a coated article, the first solution includes a solvent and at least one non-conductive material comprising at least one oxide of a metal; contacting with a second solution the coated article having at least one surface with a non-conductive material layer, the second solution includes a solvent and at least one conductive material comprising at least one of the foregoing: graphite, metals, conductive ceramics, semi-conductive ceramics, intermetallic compounds, and mixtures thereof; and drying the coated article having at least one surface with a non-conductive material layer having the at least one conductive material in contact with at least one surface of the non-conductive material layer and the at least one surface of the article.
Abstract:
An apparatus and a non-vapor-pressure dependent method of chemical vapor deposition of Si based materials using direct injection of liquid hydrosilane(s) are presented. Liquid silane precursor solutions may also include metal, non-metal or metalloid dopants, nanomaterials and solvents. An illustrative apparatus has a precursor solution and carrier gas system, atomizer and deposit head with interior chamber and a hot plate supporting the substrate. Atomized liquid silane precursor solutions and carrier gas moves through a confined reaction zone that may be heated and the aerosol and vapor are deposited on a substrate to form a thin film. The substrate may be heated prior to deposition. The deposited film may be processed further with thermal or laser processing.
Abstract:
[Problem] To provide a method capable of forming an insulating film having homogeneous and high bulk density and less suffering defects.[Means for solving] A substrate surface is coated with a silicon dioxide dispersion containing silicon dioxide fine particles, a polymer, a surfactant and a dispersion medium; and then further coated with a polysilazane composition; and thereafter heated to form an insulating film.
Abstract:
A composite is provided that has a structured sol-gel layer on a substrate. The sol-gel layer is extremely resistant against mechanical stress and other influences from outside due to its production method. The composite is suitable for use in a lot of technical fields, since the sol-gel layer can be provided with nearly any arbitrary structure. For example, the structure may result in optical effects and may be used in optical systems.