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Preparing method of metal-carbide-containing multi-layer multi-component composite material

A multi-layer composite material, metal carbide technology, applied in the direction of metal layered products, chemical instruments and methods, layered products, etc., can solve the problems of difficult multi-layer multi-component composite materials, high raw material requirements, and complexity. , to achieve the effect of easy expansion of production, simple preparation process, and low preparation temperature

Inactive Publication Date: 2014-10-29
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the preparation of multi-layer multi-component composites containing metal carbides has always been a difficult point. How to prepare them with high efficiency and low consumption is the focus of current research. The current main spray deposition and other processes are limited by complexity, high energy consumption, and raw material requirements. higher

Method used

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  • Preparing method of metal-carbide-containing multi-layer multi-component composite material
  • Preparing method of metal-carbide-containing multi-layer multi-component composite material
  • Preparing method of metal-carbide-containing multi-layer multi-component composite material

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Embodiment 1

[0030] This embodiment according to figure 1 The simple process shown is carried out, taking the preparation of a three-layer metal carbide multi-component composite material as an example, the schematic diagram of the multi-layer composite material is shown in figure 2shown. First, take the preparation of a three-layer composite material (TiC|Ti|TiC) of titanium carbide and titanium as an example. Titanium dioxide and carbon powder were mixed according to Ti:C = 1:1, and 2% by weight polyvinyl butyral binder was added and then ball-milled to obtain a uniform powder as the TiC layer precursor powder. TiO 2 / C powder and pure TiO 2 powder according to TiO 2 / C|TiO 2 |TiO 2 / C sequentially pressed into a three-layer precursor 3, and then the pressed three-layer precursor 3 was sintered in a high-purity argon gas protection at 1100°C for 2 hours. The sintered precursor was wrapped with foam nickel 2 and wrapped with iron-chromium-aluminum wire to make a three-layer precur...

Embodiment 2

[0032] This embodiment is basically the same as Embodiment 1, especially in that:

[0033] In this embodiment, five layers of Ti 5 Si 3 / TiC|Ti|Ti 5 Si 3 / TiC|Ti|Ti 5 Si 3 / TiC composites as an example. Firstly, titanium dioxide, silicon dioxide and carbon powder are mixed according to the target layer product Ti 5 Si 3 The stoichiometric ratio of / TiC is mixed, and after adding an appropriate amount of binder, the ball mill is mixed to obtain Ti 5 Si 3 The precursor raw material of the / TiC layer; the precursor raw material of the metal titanium layer is pure titanium dioxide powder; 2 / SiO 2 / C|TiO 2 |TiO 2 / SiO 2 / C|TiO 2 |TiO 2 / SiO 2 The / C layer sequence is sequentially pressed to form a five-layer precursor. The pressed five-layer precursor was sintered at 1300°C for 2 hours under an inert atmosphere, and then the sintered precursor was wrapped with foamed nickel and wrapped with iron-chromium-aluminum wire to make a cathode. Place the prepared cathode...

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Abstract

A preparing method of a metal-carbide-containing multi-layer multi-component composite material is disclosed. The method includes: designing a component formula of each layer of the composite material by adopting refractory metal carbides and carbon powder as raw materials; uniformly mixing the corresponding refractory metal carbide and the carbon powder according to the formula of each layer; pressing different mixtures containing the metal carbides and the carbon into a multi-layer multi-component precursor according to a designed layering sequence of the composite material; and performing direct deoxygenation, in-situ carbonization and synchronous sintering by adopting an electrochemical deoxygenation technology with controlled oxygen flow to obtain the composite material. According to the preparing method, the electrochemical method is adopted for the first time to directly prepare the metal-carbide-containing multi-layer multi-component composite material, thus avoiding dependence on high-temperature high-purity metal initial materials. The preparing method has characteristics of controllable processes, high efficiency, simple operation, short process, easily expended production, low requirements for the raw materials, simple preparation process, low cost and low preparing process temperature, thus facilitating industrial production.

Description

technical field [0001] The invention relates to a method for preparing a metal carbide-containing multi-layer multi-component composite material, and belongs to the technical field of metal carbide multi-layer composite material preparation technology. Background technique [0002] With the advancement of science and technology, the requirements for materials in various fields such as aviation, national defense, transportation, petroleum, and chemical industry are getting higher and higher. In many cases, it is difficult for a single material to meet the performance requirements of practical applications, especially aerospace, etc. High-temperature materials are demanding fields, and there is an urgent need to develop high-performance materials. Combining materials with different properties, and forming multi-layer composite materials according to the characteristics of different materials or composite materials, in order to improve their comprehensive performance, so that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/28C25C7/02C25B1/00C25B11/04B32B15/04B32B9/04
Inventor 邹星礼鲁雄刚赖冠全谢学良路长远耿淑华周忠福
Owner SHANGHAI UNIV
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