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Boron nitride-titanium diboride ceramic composite material and preparation method thereof

A technology of titanium carbonitride ceramics and composite materials, which is applied in the field of preparation of boron nitride-based ceramic composite materials, which can solve the problems of large-scale product difficulties, high cost, and long production cycle, and achieve easy processing and short production cycle , The effect of simple equipment structure

Active Publication Date: 2013-02-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high cost, long production cycle and difficulty in making large-sized products in the preparation of existing boron nitride-based ceramic materials, the present invention provides a preparation method of boron nitride-titanium carbonitride ceramic composite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0024] Specific Embodiment 1: In this embodiment, the boron nitride-titanium carbonitride ceramic composite material is composed of 20% to 80% of boron carbide powder, 10% to 70% of titanium powder and 0% to 70% of diluent Made from powder.

[0025] Both the boron carbide powder and the titanium powder in this embodiment are purchased from the market.

[0026] The boron nitride-titanium carbonitride composite ceramic material in this embodiment can withstand high temperatures above 2600°C; the boron nitride-titanium carbonitride composite ceramic material in this embodiment has extremely good thermal shock resistance ℃ cold and hot cycles for hundreds of times without damage to the product; the boron nitride-titanium carbonitride composite ceramic material in this embodiment has excellent machinability, and can be processed by using different machine tools; the boron nitride-carbon nitride composite ceramic material in this embodiment The bending strength of the titanium nitr...

specific Embodiment approach 2

[0028] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the boron nitride-titanium carbonitride ceramic composite material consists of 30% to 70% of boron carbide powder, 10% to 60% of titanium powder and 10% to 60% diluent powder. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the boron nitride-titanium carbonitride ceramic composite material consists of 30% to 60% of boron carbide powder, 20% to 50% of titanium powder and 20% to 50% diluent powder. Others are the same as in the first embodiment.

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Abstract

The invention relates to a boron nitride-titanium diboride ceramic composite material and a preparation method thereof. The invention solves the problems that preparation of the traditional boron nitride-based ceramic composite material has high cost, long production period and difficulty in manufacturing products with large size. The boron nitride-titanium diboride ceramic composite material is prepared from carbonized boron powder, titanium powder and diluent powder. The boron nitride-titanium diboride ceramic composite material is prepared by the following steps of raw material drying, ball milling and mixing, blank production and self-propagating synthesis of the blank. The method has short production period and low cost ad can realize the production of products with large size.

Description

technical field [0001] The invention relates to a preparation method of a boron nitride-based ceramic composite material. Background technique [0002] Boron nitride (BN) products have high temperature resistance, corrosion resistance, electrical insulation properties, and excellent thermal shock resistance and processability, so they are widely used in industry. Using the non-wetting and corrosion resistance of BN to glass and metal melts, it can be used as crucibles, vessels, channels, delivery pumps and other components for melting various non-ferrous metals, precious metals and rare metals in special smelting; as melting boron single crystal Utensils; in the manufacture of film capacitors and cigarette wrapping paper, using BN as a molten aluminum evaporation container can receive high-quality and high-yield effects; BN products can also be used as molds for cast steel and poured glass. It can be used as high-temperature insulating parts for plasma welding tools, bushin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/563C04B35/5835C04B35/565C04B35/583C04B35/581C04B35/584C04B35/58C04B35/52C04B35/56C04B35/10C04B35/48C04B35/057C04B35/04C04B35/14C04B35/40C04B35/185C04B35/462C04B35/46C04B35/622
Inventor 郑永挺赫晓东
Owner HARBIN INST OF TECH