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

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, high energy consumption, etc. , to achieve the effect of easy to scale up production, simple preparation process and short process flow

Inactive Publication Date: 2016-11-23
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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  • Preparation method of multi-layer multi-component composite material containing metal carbide
  • Preparation method of multi-layer multi-component composite material containing metal carbide
  • Preparation method of multi-layer multi-component composite material containing metal carbide

Examples

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Embodiment 1

[0030] This embodiment follows as 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 multilayer composite material is as follows figure 2 Shown. First, take the preparation of a three-layer composite of titanium carbide and titanium (TiC|Ti|TiC) as an example. Titanium dioxide and carbon powder are mixed according to Ti:C = 1:1 and 2% by weight polyvinyl butyral binder is added, and then ball milled uniformly 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 is sequentially pressed into a three-layer precursor 3, and then the pressed three-layer precursor 3 is sintered in a high-purity argon atmosphere at 1100°C for 2 hours. Wrap the sintered precursor with foamed nickel 2 and use iron-chromium-aluminum wire to clamp and lead to make a three-layer precursor cat...

Embodiment 2

[0032] This embodiment is basically the same as the first embodiment, and the special features are:

[0033] In this example, five layers of Ti were prepared 5 Si 3 / TiC|Ti|Ti 5 Si 3 / TiC|Ti|Ti 5 Si 3 / TiC composite material as an example. First, the titanium dioxide, silicon dioxide and carbon powder are in accordance with the target layer product Ti 5 Si 3 / TiC stoichiometric ratio mixing, and adding an appropriate amount of binder, ball milling and mixing to obtain Ti 5 Si 3 / TiC layer precursor raw material; the precursor raw material of the metal titanium layer is pure titanium dioxide powder; the different layer powders are in accordance with TiO 2 / SiO 2 / C|TiO 2 |TiO 2 / SiO 2 / C|TiO 2 |TiO 2 / SiO 2 The / C layer is sequentially pressed into five layers of precursors. 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 ma...

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Abstract

The invention discloses a method for preparing a metal carbide-containing multi-layer multi-component composite material. Using refractory metal oxides and carbon powder as raw materials, first design the composition ratio of each layer of the multilayer composite material, and mix the corresponding metal oxide and carbon powder according to the ratio of each layer, and then layer the composite material according to the design Sequentially press different metal oxides and carbon mixtures into precursors with multilayers and multicomponents, and then realize direct deoxidation, in-situ carbonization, and simultaneous sintering to form metal carbide multilayers and multicomponents through electrochemical controllable oxygen flow deoxidation technology Composite materials. The method of the present invention directly prepares metal carbide-containing multi-layer multi-component composite materials by an electrochemical method for the first time, avoiding the dependence on high-temperature and high-purity metal initial materials, the process is controllable, the efficiency is high, the operation is simple, the process is short, and it is easy to expand It has low requirements on raw materials, simple preparation process, low cost, and low preparation process temperature, which is beneficial to realize industrialized 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 t...

Claims

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Application Information

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Patent Type & Authority Patents(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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