摘要:
Suspensions and powders based on indium tin oxide are prepared by a method in which indium tin oxide precursors are precipitated from solutions in one or more solvents in the presence of one or more surface-modifying components, the solvent(s) are removed from the precipitate, which is then calcined, one or more surface-modifying components and one or more solvents are added, the mixture is comminuted or dispersed to form a suspension, and the liquid components are separated from the suspension to give a powder. The powder may be converted into a moulding by a shaping process. The materials prepared by this method are especially suitable as coating materials for use in microelectronics and optoelectronics.
摘要:
Nanoscale corundum powders are obtained by first producing an Al2O3 precursor by adding seed crystals to an aqueous solution of an aluminium compound and adding a base and then converting the Al2O3 precursor into corundum by calcination at a high temperature. Before the calcination, the salts that are present in addition to the Al2O3 precursor are separated off. The resulting product is calcined at temperatures of 700 to 975° C. and any fines that may be present are removed. The resulting corundum powders can be sintered at temperatures of ≦1200° C. to produce compacts or components of multiple layer systems.
摘要翻译:通过首先通过将晶种加入到铝化合物的水溶液中并加入碱,然后将Al 2 O 3 3 O 3前体转化成Al 2 O 3 3 N 3前体而获得纳米级刚玉粉末, 通过在高温下煅烧,将其加入到刚玉中。 在煅烧之前,分离除了Al 2 O 3 3前体之外存在的盐。 所得产物在700至975℃的温度下煅烧,并且可以存在任何可能存在的细粒。 所得到的刚玉粉末可以在<= 1200℃的温度下烧结以产生多层系统的压块或组分。
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 substrate having an anti-adhesive coating thereon. The coating is made from a coating composition comprising solid particles of a release agent different from boron nitride and a binder comprising surface-modified nanoscale solid particles.
摘要:
The invention relates to corrosion-resistant, temperature-stable, durable mould release layers, suitable for the die casting of non-ferrous metals, comprising boron nitride and slips for production thereof, a method for production of the slips, a method for production of the mould release layers and the use of the mould release layers.
摘要:
A substrate having an anti-adhesive coating thereon. The coating is made from a coating composition comprising solid particles of a release agent different from boron nitride and a binder comprising surface-modified nanoscale solid particles.