High-hardness and high-toughness metal ceramic composition and preparation method thereof

A cermet and a production method technology, applied in the field of cermet compositions, can solve the problems of unsightly surface of ornaments, easy to produce scratches, low hardness, etc., and achieve the effects of not easy to scratches, excellent toughness and high hardness

Inactive Publication Date: 2013-03-06
邓湘凌
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, although the ornaments made of metal-ceramic compositions have the advantages of high hardness and wear resistance, they also have the disadvantage of being fragile; while the ornaments made of stainless steel materials have high toughness, but their hardness is lower than that of metal-ceramic compositions. Easy to produce scratches, resulting in unsightly surface of jewelry

Method used

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Embodiment Construction

[0019] The invention provides a cermet composition with high hardness and high toughness, which includes raw material components and their weight percentages as follows: 40-70% of titanium carbide, 10-30% of tungsten carbide, 1-5% of tantalum carbide, 3% of chromium carbide -5%, nickel 10-20%, and molybdenum 5-10%. The exudation amount of nickel in the composition complies with the test standard of European standard EN1811.

[0020] Wherein, the weight percentage of titanium carbide is preferably 50-60%, the weight percentage of tungsten carbide is preferably 15-30%, and the weight percentage of tantalum carbide is preferably 1-2%.

[0021] The Vickers hardness HV of the cermet composition can reach 900-1000, and the fracture toughness can reach 2500MPa·m 1 / 2 .

[0022] The preparation method of the high-hardness and high-toughness cermet composition of the present invention comprises the following steps:

[0023] Step 1, providing raw materials, the raw material components...

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Abstract

The invention provides a high-hardness and high-toughness metal ceramic composition and a preparation method thereof. The high-hardness and high-toughness metal ceramic composition comprises the following raw material components in percentage by weight: 40-70 percent of titanium carbide, 10-30 percent of tungsten carbide, 1-5 percent of tantalous carbide, 3-5 percent of chromium carbide, 10-20 percent of nickel and 5-10 percent of molybdenum. The preparation method of the high-hardness and high-toughness metal ceramic composition comprises the following steps of: 1, providing raw materials; 2, performing ball milling and stirring on each raw material component to obtain powder particles; 3, molding under a high pressure; 4, removing an adhesive and degreasing; and 5, sintering in vacuum at a high temperature. The high-hardness and high-toughness metal ceramic composition is prepared by adopting titanium carbide, tungsten carbide, tantalous carbide, chromium carbide, nickel and molybdenum, has high hardness, high toughness and high corrosion resistance, and is prevented from being broken and scratched.

Description

technical field [0001] The invention relates to a cermet composition, in particular to a high-hardness and high-toughness cermet composition and a manufacturing method thereof. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the quality of life and external image, and accessories not only play a role of decoration, but also enhance the image. In order to meet the needs of different customers, various accessories such as watches, bracelets, and rings have appeared on the market. Many of these accessories are made of materials such as cermet composites or stainless steel, which are relatively low in cost and easy to appear in various forms. Among them, although the ornaments made of metal-ceramic compositions have the advantages of high hardness and wear resistance, they also have the disadvantage of being fragile; while the ornaments made of stainless steel materials have high toughness, but their hardness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/06C22C29/10C22C1/05
Inventor 邓湘凌
Owner 邓湘凌
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