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Carbide-based ceramic material and preparation technology thereof

A ceramic material and preparation technology, which is applied in the field of carbide-based ceramic materials and its preparation, can solve the problems of high brittleness and difficult sintering, and achieve the effects of moderate grain size, high hardness and improved edge properties

Inactive Publication Date: 2017-03-22
FOSHAN LANTU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To improve the problems of high brittleness and difficult sintering of existing carbide-based ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A carbide-based ceramic material, mainly comprising the following raw materials in parts by weight: 40 parts of silicon carbide, 5 parts of titanium carbide, 3 parts of molybdenum carbide, 0.5 parts of tungsten carbide, 0.1 part of vanadium carbide, 0.1 part of hafnium carbide, three 3 parts of aluminum oxide, 2 parts of boron nitride, 2 parts of magnesium zirconate, 11 parts of paraffin, 0.3 parts of cerium oxide, 3 parts of potassium oxide, 5 parts of polyethylene glycol, 0.75 parts of graphite and 0.75 parts of boron.

[0020] Silicon carbide, titanium carbide and molybdenum carbide have a particle size of 0.2 microns and a purity of 95%.

[0021] This embodiment also provides a carbide-based ceramic material and its preparation process, comprising the following steps:

[0022] (1) Weigh 40 parts of silicon carbide, 5 parts of titanium carbide, 3 parts of molybdenum carbide, 0.5 part of tungsten carbide, 0.1 part of vanadium carbide, 0.1 part of hafnium carbide, 3 pa...

Embodiment 2

[0027] A carbide-based ceramic material, mainly comprising the following raw materials in parts by weight: 50 parts of silicon carbide, 15 parts of titanium carbide, 9 parts of molybdenum carbide, 11 parts of tungsten carbide, 0.5 parts of vanadium carbide, 0.5 parts of hafnium carbide, three 10 parts of aluminum oxide, 6 parts of boron nitride, 8 parts of magnesium zirconate, 15 parts of paraffin, 1.1 parts of cerium oxide, 7 parts of potassium oxide, 15 parts of polyethylene glycol, 2.25 parts of graphite and 0.75 parts of boron.

[0028] Silicon carbide, titanium carbide and molybdenum carbide have a particle size of 0.6 microns and a purity of 99.99%.

[0029] This embodiment also provides a carbide-based ceramic material and its preparation process, comprising the following steps:

[0030] (1) Weigh 50 parts of silicon carbide, 15 parts of titanium carbide, 9 parts of molybdenum carbide, 11 parts of tungsten carbide, 0.5 parts of vanadium carbide, 0.5 parts of hafnium car...

Embodiment 3

[0035] A carbide-based ceramic material, mainly comprising the following raw materials in parts by weight: 45 parts of silicon carbide, 10 parts of titanium carbide, 6 parts of molybdenum carbide, 5.7 parts of tungsten carbide, 0.3 parts of vanadium carbide, 0.3 parts of hafnium carbide, three 6.5 parts of aluminum oxide, 4 parts of boron nitride, 5 parts of magnesium zirconate, 13 parts of paraffin, 0.7 parts of cerium oxide, 5 parts of potassium oxide, 10 parts of polyethylene glycol, 1.5 parts of graphite and 0.75 parts of boron.

[0036] Silicon carbide, titanium carbide and molybdenum carbide have a particle size of 0.4 microns and a purity of 97.5%.

[0037] This embodiment also provides a carbide-based ceramic material and its preparation process, comprising the following steps:

[0038] (1) Weigh 45 parts of silicon carbide, 10 parts of titanium carbide, 6 parts of molybdenum carbide, 5.7 parts of tungsten carbide, 0.3 parts of vanadium carbide, 0.3 part of hafnium car...

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Abstract

The invention provides a carbide-based ceramic material and relates to the technical field of ceramic preparation. The carbide-based ceramic material comprises the following raw materials in parts by weight: 40-50 parts of silicon carbide, 5-15 parts of titanium carbide, 3-9 parts of molybdenum carbide, 0.5-11 parts of tungsten carbide, 0.1-0.5 part of vanadium carbide, 0.1-0.5 part of hafnium carbide, 3-10 parts of aluminum oxide, 2-6 parts of boron nitride, 2-8 parts of magnesium zirconate, 11-15 parts of paraffin, 0.3-1.1 part of cerium oxide, 3-7 parts of potassium oxide, 5-15 parts of polyethylene glycol and 1.5-3 parts of additives. The carbide-based ceramic material prepared according to the invention has ultrahigh hardness and excellent chemical stability; the problem of high brittleness of the present carbide-based ceramic is solved; the preparation technology provided by the invention is simple; a high-density ceramic material can be acquired through sintering under normal pressure.

Description

technical field [0001] The invention belongs to the technical field of ceramic preparation, and in particular relates to a carbide-based ceramic material and a preparation process thereof. Background technique [0002] As heat-resistant materials and superhard tools, carbide ceramics have been widely used in industrial fields such as petroleum, chemical industry, microelectronics, automobile, aerospace, aviation, papermaking, laser, mining and atomic energy. [0003] Carbide not only has excellent mechanical properties at room temperature, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, but also a high temperature resistant material. Many of the carbides have softening points above 3000°C. Most carbides are more resistant to oxidation than carbon and graphite. Many carbides have high hardness and good chemical stability. However, carbides are generally brittle and poor in fracture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/634C04B35/622
CPCC04B35/565C04B35/622C04B35/63496C04B2235/3201C04B2235/3217C04B2235/3229C04B2235/3248C04B2235/3839C04B2235/3843C04B2235/3847C04B2235/386C04B2235/421C04B2235/425
Inventor 张焕明
Owner FOSHAN LANTU TECH CO LTD
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