摘要:
A deposition process for coating a substrate with films of varying thickness on a substrate can be achieve. The thickness of the film deposition can be controlled by the separation between the substrate and a curtain. Different separation distances between the substrate and curtain in the same chemical bath will result in different film thicknesses depositing on the substrate.
摘要:
A silicon dioxide sol comprises tetraethyl silicate, dimethylformamide, 1,2-bis(triethoxysilyl)ethane, absolute ethanol, hydrochloric acid, and water. A surface treatment method for metal substrate using the silicon dioxide sol and a coated article manufactured by the method is also provided, the resulting coating providing significantly better anti-corrosion and anti-wear properties.
摘要:
The present invention solves numerous problems in state-of-the-art industrial anti-corrosion protection by using a reactive silicon oxide precursor solution. Among the problems solved are those of decreased heat transfer over a protected surface, limited protection against high-temperature corrosive fluids and difficulties in protecting complex 3D geometries and surfaces with a high surface roughness. The present invention furthermore provides an easy way of making chemical surface functionalization using e.g. silane chemistry. The invention solves these problems by coating the surface of a ceramic or metallic part with a thin layer of a liquid solution of a reactive silicon oxide precursor (rSiO-p) such as Hydrogen Silsesquioxane (HSQ) in Methyl Isobytul Ketone (MIBK) or volatile methyl siloxane (VMS), heating the part to a curing temperature of the rSiO-p, and after a curing time the reactive silicon oxide precursor is transformed into a thin layer of essentially pin-hole free silicon oxide.
摘要:
A substrate element for coating with an easy-to-clean coating, the effect of the easy-to-clean coating being improved by the substrate element in terms of its hydrophobic and oleophobic properties and also, more particularly, its long-term stability. The substrate element comprises in particular a support material of glass or glass-ceramic and an antireflection coating, consisting of one layer or of at least two layers, the one layer or the topmost layer of the at least two layers being an adhesion promoter layer which is able to interact with an easy-to-clean coating and comprises a mixed oxide, more particularly a silicon mixed oxide.
摘要:
This invention relates to a dipping solution used in a process for producing a siliceous film. The present invention provides a dipping solution and a siliceous film-production process employing the solution. The dipping solution enables to form a homogeneous siliceous film even in concave portions of a substrate having concave portions and convex portions. The substrate is coated with a polysilazane composition, and then dipped in the solution before fire. The dipping solution comprises hydrogen peroxide, a foam-deposit inhibitor, and a solvent.
摘要:
Certain examples relate to a method of making an antireflective (AR) coating supported by a glass substrate. The anti-reflection coating may include porous metal oxide(s) and/or silica, and may be produced using a sol-gel process. The pores may be formed and/or tuned in each layer respectively in such a manner that the coating ultimately may comprise a porous matrix, graded with respect to porosity. The gradient in porosity may be achieved by forming first and second layers using one or more of (a) nanoparticles of different shapes and/or sizes, (b) porous nanoparticles having varying pore sizes, and/or (c) compounds/materials of various types, sizes, and shapes that may ultimately be removed from the coating post-deposition (e.g., carbon structures, micelles, etc., removed through combustion, calcination, ozonolysis, solvent-extraction, etc.), leaving spaces where the removed materials were previously located.
摘要:
A method includes forming an insulating film over a substrate by introducing a cyclic siloxane compound having a cyclic siloxane as a skeleton and having at least one volatile hydrocarbon group bonded to a side chain, and a silicon-containing compound into a plasma, and converting the insulating film to a porous insulating film by adding energy to the insulating film. The silicon-containing compound is decomposed using less energy as compared with the skeleton of the cyclic siloxane compound, the volatile hydrocarbon group, and the bond between the cyclic siloxane compound and the volatile hydrocarbon group.
摘要:
The invention relates to a metal substrate comprising an ultra-hard composite layer consisting of an inorganic, vitreous matrix containing one or more abrasive fillers. According to the invention, the diameter of the filler particles or, if the filler particles have a platelet-type form, the thickness of the filler particles is less than the layer thickness of the composite layer.
摘要:
The invention provides a water-borne complete inorganic alkali silicate composition capable of solving the problem of gelation occurred in a preservation solution without using anionic organic substances, expanding the range of application dramatically, additionally solving the problem of efflorescence after coating, which is the biggest problem when the molar ratio is low, and furthermore curing at normal temperature without baking, enabling long-lasting effects.The water-borne complete inorganic alkali silicate composition is comprised of a mixture of an alkali metal silicate including a simple or a mixture of potassium silicate or sodium silicate, a colloidal silica, and a simple or a mixture of a sodium phosphate compound or a potassium phosphate compound.
摘要:
Nanoscopic metallized and nonmetallized nanoscopic silicon containing agents including polyhedral oligomeric silsesquioxane and polyhedral oligomeric silicate provide radiation absorption and in situ formation of nanoscopic glass layers on material surfaces. These property improvements are useful in space-survivable materials, microelectronic packaging, and radiation absorptive paints, coatings and molded articles.