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

A technology for titanium carbonitride ceramics and composite materials, which is applied in the field of boron nitride based ceramic composite materials and their preparation, can solve the problems of difficulty in large-sized products, high cost, long production cycle, etc., and achieves easy processing and production cycle. The effect of short, simple device construction

Active Publication Date: 2010-06-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The present invention provides a boron nitride-titanium carbonitride ceramic composite material and a preparation method thereof in order to solve t...

Method used

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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 boron nitride-based ceramic composite material and a preparation method thereof. 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 tool...

Claims

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Application Information

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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
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