4 results about "Cermet" patented technology

The invention relates to a thermoelectric generator module with a hot zone and a cold zone including at least a first metal-ceramic substrate, which has a first ceramic layer and at least one structured first metallization applied to the first ceramic layer and is assigned to the hot zone, and at least a second metal-ceramic substrate, which has a second ceramic layer and at least one structured second metallization applied to the second ceramic layer and is assigned to the cold zone, and also a number of thermoelectric generator components located between the first and second structured metallizations of the metal-ceramic substrates. The first metal-ceramic substrate, assigned to the hot zone, has at least one layer of steel or high-grade steel, wherein the first ceramic layer is arranged between the first structured metallization and the at least one layer of steel or high-grade steel. The invention also relates to an associated metal-ceramic substrate and to a method for producing it.

The invention relates to a manufacturing method for a large-caliber abrasion-resistant corrosion-resistant ternary composite pipe accessory. The steps include that 1 a binary metal ceramic composite pipe fitting is manufactured, a metal ceramic composite steel pipe which is subjected to self-propagating high-temperature centrifugal synthesis (SHS) reaction is cut and welded in a spliced mode to form a required pipe fitting according to requirements; 2 abrasion-resistant materials are used for filling gaps of joints and mainly composed of abrasion-resistant inorganic particles and modified resin composite adhesives; 3 a separable double-layer mold is used for being lined in the inner cavity of a branch pipe, and inner surface resin layer pouring forming is conducted by combining a vacuum centrifugal pouring process. By means of the manufacturing method, the problem that a part of the composite resin layer of the ternary composite pipe accessory must be manufactured manually and can not be formed through machinery is solved, and the resin layer of the ternary composite pipe accessory and sealing face resin can be formed through one step. By means of the pipe accessory manufactured through the method, the resin layer is even in thickness, end product quality is stable and reliable, the service life is prolonged, application of an abrasion-resistant corrosion-resistant ternary composite pipeline project is guaranteed effectively, important project value is achieved, and production efficiency is improved.

The invention relates to a copper alloy containing a metal ceramic coating, and a preparation method and application thereof. The copper alloy containing the metal ceramic coating comprises a copper alloy substrate and the metal ceramic coating wrapped on the substrate. The metal ceramic coating comprises, by mass, 100 parts of ceramic glass, 50-150 parts of nickel powder and 10-40 parts of clay.The ceramic glass comprises, by mass, 50-70% of Pb3O4, 15-30% of B2O3, 10-20% of BaO and 5-20% of SiO. The preparation method comprises the steps of preparing slurry from designed components; coatingthe surface of a copper alloy component with the slurry; conducting firing at 600-1000 DEG C for 30-120 min after drying and curing to obtain a finished product. The copper alloy is simple in process,convenient to operate, controllable in coating thickness and firm and uniform in bonding to the substrate and has good heat shock resistance and oxidation resistance.

The invention discloses a metal-ceramic composite fibrous membrane tube and a preparation method thereof. The preparation method is characterized by comprising the following steps: mixing 0.2 to 1 mass percent of polyvinylpyrrolidone, 0.7 to 10 mass percent of polyether sulfone, 7 to 50 mass percent of N-methyl-1-pyrrolidone, 50 to 90 mass percent of metal with a ceramic material in a mass ratio of 3-10:1, and performing ball milling to prepare slurry; pressurizing to make the slurry extruded from a interlayer clearance of a spinning nozzle and water and/or ethanol extruded from an inner pipesimultaneously, and making the slurry enter the water and/or the ethanol to obtain a hollow tubular blank of the metal-ceramic composite fibrous membrane tube; and sintering the blank at a temperature of between 800 and 1,500 DEG C at a reducing atmosphere or in a vacuum degree of between 1*10<-4> and 1*10<1>Pa to obtain the metal-ceramic composite fibrous membrane tube. The metal-ceramic composite fibrous membrane tube solves the problem that the traditional ceramic membrane tube is difficult to assemble, cannot adapt to high temperature and harsh conditions and is difficult to form and sinter, and heat exchange performance and gas/liquid transmission rate can be improved.