摘要:
The invention concerns a method for producing a highly-porous ceramic layer and for application of this layer onto metallic, ceramic, enameled and/or glass substrates using porous, ceramic particles, preferably aluminum oxide, titanium oxide and zircon oxide, and an inorganic binder system. The inorganic binder system contains at least one ceramic nanoparticle of a particle size of less than 100 nm, preferably less than 50 nm and particularly preferred less than 25 nm, the solvent being water. Layers produced in this fashion are suited as self-cleaning catalytically active layers e.g. in ovens, in combustion engines etc. or for general coating of substances to considerably increase their specific surface e.g. for catalytic substrates.
摘要:
A layer or coating which counteracts crystalline deposits on a substrate includes a matrix composed of a binder system and ceramic particles, and also boron nitride in particle form, wherein the boron nitride particles are incorporated into the matrix and are distributed essentially homogeneously therein.
摘要:
A method for producing a ceramic coating of metallic and/or ceramic surfaces and products in reactors, process plants and combustion plants includes applying a mixture of fine-particle boron nitride, at least one inorganic binding agent of medium particle size in the nanometer range, containing substantially Al2O3, AlO(OH), ZrO2, Y—ZrO2, TiO2, Fe2O3 and/or SnO2 or an associated precursor compound and at least one solvent and/or water onto a metallic and/or ceramic surfaces or product, and burning the applied mixture into a coating through heating.
摘要翻译:一种用于在反应器,工艺设备和燃烧设备中制造金属和/或陶瓷表面和产品的陶瓷涂层的方法包括:将微粒氮化硼,至少一种中等粒度的无机粘合剂在纳米范围内的混合物, 在金属和/或陶瓷表面或产品上基本上含有Al 2 O 3,AlO(OH),ZrO 2,Y-ZrO 2,TiO 2,Fe 2 O 3和/或SnO 2或相关的前体化合物和至少一种溶剂和/或水,并将 施加的混合物通过加热涂覆。
摘要:
A composition for producing a layer or a coating, especially a mold release layer, includes aluminum titanate and/or silicon nitride, an oxidic inorganic component and a binder comprising nanoscale particles.
摘要:
A composition for producing a layer or coating which is stable at high temperatures includes water glass, at least one glass frit, hard material particles and solvent.
摘要:
The invention relates to novel mixed metal oxides of the formula AXO3 and to mixtures of such mixed metal oxides. The particle size of the inventive substances is preferably in the nanoscale region, i.e. well into the sub-μm range. The novel compounds can be used in particular for the detection of gases, in particular of incombustible gases such as CO2.
摘要:
A composition for producing a layer or a coating, especially a mold release layer, includes aluminum titanate and/or silicon nitride, an oxidic inorganic component and a binder comprising nanoscale particles.
摘要:
This invention relates to a catalytic composition which comprises a coating of a coating material on a support and is obtainable by applying the coating material, comprising (1) a polycondensate of at least one hydrolysable organosilane and also, if desired, one or more compounds of glass-forming elements, and (2) particles of one or more transition metal oxides, the weight ratio of transition metal oxide particles to polycondensate being from 10:1 to 1:10, to the support and subjecting the applied coating material to thermal treatment. The invention also relates to a process for preparing this catalytic composition and to its use for the purpose of deodorizing or oxidizing organic components or carbon.
摘要:
Domestic appliances are provided with a catalytic deodorizing coating, prepared by applying a coating material containing a polycondensate of at least one hydrolysable organosilane, optionally one or more compounds of glass-forming elements, and particles of one or more catalytically active transition metal oxides, and then heat-treating the applied coating material.