Abstract:
The invention concerns a method for fixing a part on the surface of a ceramic product and a ceramic product comprising said part. Owing to the method developed within the scope of the invention, the necessity to adhere or secure via mechanical means, on a ceramic product (2), a part (1) with any property, which is to be positioned on the ceramic product (2), has been eliminated and said part has been fixed on the surface of the ceramic product (2) during the process of firing the ceramic product (2) together with said part and also a product enabling the hygienic use has been obtained.
Abstract:
A method of the present invention is a method for producing a film laminated structure, including the steps of: (a) preparing a ceramic substrate; (b) charging a mold with a slurry that contains a raw material powder, a gelling agent containing at least two polymerizable organic compounds, and an organic solvent serving as a dispersion medium, and molding and hardening the slurry through a polymerization reaction of the gelling agent to form a green body having a recessed portion or through-hole; (c) inserting the ceramic substrate into the recessed portion or through-hole of the green body and then drying the ceramic substrate and the green body to form a green structure; and (d) firing the green structure to form a film laminated structure, the film laminated structure including a film formed from the green body by firing, wherein in the step (c), before drying, a clearance x [µm] between the recessed portion or through-hole of the green body and the ceramic substrate inserted into the recessed portion or through-hole of the green body and a volume percentage y [vol%] of the dispersion medium in the slurry satisfy the following formulae: 0 ‰¤ x ‰¤ 250, y ‰¥ 0.067x + 30, y ‰¤ 0.1x + 60, and y ‰¤ 70.
Abstract:
The invention relates to a gas-tight multilayer composite tube which has a heat transfer coefficient of > 500 W/m 2 /K and contains at least two layers, one layer made of a nonporous monolithic oxide ceramic and one layer made of an oxide fiber composite ceramic, and relates to a connection piece containing at least one gas-conducting metal line, some regions of which overlap at least two ceramic layers in the longitudinal direction of the composite tube, wherein one ceramic layer contains a nonporous monolithic ceramic, and the other ceramic layer contains a fiber composite ceramic. The invention also relates to the use of the multilayer composite tube as a reaction tube for endothermic reactions, jet tubes, flame tubes, or rotary tubes.
Abstract:
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.
Abstract:
A ceramic matrix composite article (100), method for forming the article (100), and perforated ply (124) which may be incorporated therein are disclosed. The article (100) includes at least one shell ply (102) forming an exterior wall (104) having first (108) and second portions (110) and defining a plenum (106). An annular brace (112) formed of at least one structural support ply (124) is disposed within the plenum (106), including a first integral portion (114) integral with and part of the first portion (108) of the exterior wall (104), a first curved portion (116) extending from the first integral portion (114) and curving across the article plenum (106) to the second portion (110) of the exterior wall (104), a second integral portion (118) integral with and part of the second portion (110) of the exterior wall (104), a second curved portion (120) extending from the second integral portion (118) and curving across the article plenum (106) to the first curved portion (116), and an overlap (122) in which the first (116) and second curved portions (120) are integral.
Abstract:
Disclosed are a method for manufacturing exothermic ceramics for a microwave oven and exothermic ceramics for microwaves. In particular, provided is a method for manufacturing exothermic ceramics for a microwave oven, in which the exothermic ceramics are formed by mixing a ceramic body, such as clay, plastic clay or soil, with an exothermic element prepared by combining at least one selected from silicon carbide, carbon ferrite and iron oxide, which are exothermic components. Accordingly, the exothermic ceramics of the present invention can minimize a sense of difference between the exothermic element and the ceramic body component, which is raw material for ceramics, thereby being capable of emitting high-temperature heat in a short time by means of microwaves as well as maintaining stability in the shape. Furthermore, due to integral forming, the exothermic ceramics have an enhanced elegant design.
Abstract:
A cutting tool (10) and a method of making a cutting tool are provided. The cutting tool (10) comprises a sintered superabrasive tip (12) with a plurality of superhard particles of polycrystalline boron nitride, a tool body (14) and a non-brazing material (24). The non- brazing material (24) fills a gap (15, 16) between the superabrasive tip (12) and the tool body (14). The method of making a cutting tool comprises steps of providing a superabrasive tip (12); providing a tool body (14); filling a gap (15, 16) between the superabrasive tip (12) and the tool body (14) with a non-brazing material (24); and depositing a first coating (22) to the non-brazing material (24).
Abstract:
A method of the present invention is a method for producing a film laminated structure, including the steps of: (a) preparing a ceramic substrate; (b) charging a mold with a slurry that contains a raw material powder, a gelling agent containing at least two polymerizable organic compounds, and an organic solvent serving as a dispersion medium, and molding and hardening the slurry through a polymerization reaction of the gelling agent to form a green body having a recessed portion or through-hole; (c) inserting the ceramic substrate into the recessed portion or through-hole of the green body and then drying the ceramic substrate and the green body to form a green structure; and (d) firing the green structure to form a film laminated structure, the film laminated structure including a film formed from the green body by firing, wherein in the step (c), before drying, a clearance x [µm] between the recessed portion or through-hole of the green body and the ceramic substrate inserted into the recessed portion or through-hole of the green body and a volume percentage y [vol%] of the dispersion medium in the slurry satisfy the following formulae: 0 ≤ x ≤ 250, y ≥ 0.067x + 30, y ≤ 0.1x + 60, and y ≤ 70.