摘要:
A waterproofing method in which a salt is used to prevent re-emulsification of an aqueous-based emulsion polymer primer composition which has been applied to a water penetrable building structure, whereby the bond between the building structure and a subsequently applied waterproofing membrane remains strong and durable; and products suitable for use in the method.
摘要:
A method of producing a ceramic matrix composite including a protective ceramic coating thereon comprises applying a surface slurry onto an outer surface of an impregnated fiber preform. The surface slurry includes particulate ceramic solids dispersed in a flowable preceramic polymer comprising silicon, and the impregnated fiber preform comprises a framework of ceramic fibers loaded with particulate matter. The flowable preceramic polymer is cured, thereby forming on the outer surface a composite layer comprising a cured preceramic polymer with the particulate ceramic solids dispersed therein. The cured preceramic polymer is then pyrolyzed to form a porous ceramic layer comprising silicon carbide, and the impregnated fiber preform and the porous ceramic layer are infiltrated with a molten material comprising silicon. After infiltration, the molten material is cooled to form a ceramic matrix composite body with a protective ceramic coating thereon.
摘要:
An example article may include a component (26), a substrate (12) including a first ceramic material, a joining layer (22) between the component and the substrate, and a joint surface coating (14b) between the substrate and the joining layer. The joint surface coating may include a diffusion barrier layer (18) including a second ceramic material, and a compliance layer (16) including at least one of a metal or a metalloid. An example technique may include holding a first joining surface (24) of a coated component adjacent a second joining surface (28) of a second component (26). The example technique may further include heating at least one of the coated component, the second component, and a braze material, and brazing the coated component by allowing the braze material to flow in a region between the first joining surface and the second joining surface.
摘要:
An electroconductive hole plug paste comprising about 60-80 wt % of platinum particles, about 10-20 wt % of Al 2 O 3 , and about 10-20 wt % of organic vehicle, based upon 100% total weight of the paste, wherein the organic vehicle includes at least one viscosity-modifying component in an amount sufficient to provide the electroconductive hole plug paste with a viscosity of about 800-1,500 kcPs, is provided. A ceramic substrate assembly for an implantable medical device having the electroconductive hole plug paste of the invention, and a method of forming the same, are also provided.
摘要翻译:基于100重量%的浆料,包含约60-80重量%的铂颗粒,约10-20重量%的Al 2 O 3和约10-20重量%的有机载体的导电孔塞,其中 有机载体包括至少一种粘度调节组分,其量足以提供具有约800-1,500kcPs的粘度的导电孔塞糊。 还提供了一种用于具有本发明的导电孔塞膏的可植入医疗装置的陶瓷基片组件及其形成方法。
摘要:
A gas turbine blade (110) has a bond coat (120) applied to its surface. A porous substrate is applied to the bond layer and one or more protective layers (140,150,160,170) are applied to the bond layer. The porous substrate, such as a fiber mesh, is embedded between the bond layer (120) and the protective layer (140) to prevent creep.
摘要:
In the case of a metal-ceramic substrate with at least one metallization, patterned by etching, on at least one surface side of a laminar ceramic material which comprises a base substrate made of an aluminium-nitride or silicon-nitride ceramic and to which the metallization is applied by active soldering before patterning, an intermediate layer made of an oxidic ceramic is provided between the at least one metallization and the base substrate.
摘要:
In the case of a metal-ceramic substrate with a multilayered ceramic material in sheet form, and with at least one metallization that is provided on one surface side of the ceramic material and is joined to the ceramic material by direct bonding or active soldering, the ceramic material comprises at least one inner layer or base layer of a silicon nitride ceramic. The surface side of the ceramic material that is provided with the at least one metallization is formed by an intermediate layer of an oxidic ceramic applied to the base layer.
摘要:
A composite body is made by a method in which a first body (1) of thermal insulation material and a second body (5) of substantially rigid refractory material are secured together, for example with an adhesive (3).
摘要:
The microporous heat insulating body consists of pressed heat insulating material containing 30 90 wt. % fine particles of metal oxide, 030 wt. % of an opacifier, 010 wt. % inorganic fiber material and 1015 wt. % of an inorganic bonding agent in addition to 2 45 wt. %, preferably 515 wt. % xonotlite.