Titanium carbonitride-based metal ceramic material and preparation method thereof
By using pre-solution treatment and medium-frequency sintering methods in the preparation process of titanium carbonitride-based metal cermet, the problem of nitrogen element detachment during the sintering process is solved, and high-performance and high-stability titanium carbonitride-based metal cermet material is obtained.
CN116497253BActive Publication Date: 2025-03-28CHANGSHA SHARPEN ADVANCED MATERIALS CO LTD
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Patent Information
- Application Number
- CN202310529292.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2043-05-11
AI Technical Summary
Technical Problem
During the sintering process of titanium nitride-based metal cermet, nitrogen elements are prone to detachment, resulting in unstable material properties and it is difficult to obtain high-performance and high-stability materials.
Method used
The pre-solution treatment method is used to generate a uniform solid solution shell phase in situ on the surface of Ti(C,N) powder, and combined with the medium frequency sintering method, to avoid nitrogen removal during the sintering process.
Benefits of technology
It effectively avoids denitrification during sintering, improves the hardness, strength and wear resistance of the material, and enhances production stability and efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a titanium carbonitride-based metal ceramic material and a preparation method thereof, belonging to the technical field of metal ceramic materials. The titanium carbonitride-based metal ceramic material comprises a metal bonding phase and a ceramic phase; the ceramic phase comprises hard particles, the hard particles have Ti(C,N) particles as cores and (Ti,Me)C solid solutions as shells, wherein Me comprises W and Mo, and the metal bonding phase comprises Co, Ni and rare earths. The titanium carbonitride-based metal ceramic material is obtained by a powder metallurgy method from powder raw materials including Ti(C,N) and WC, Mo2C, Co, Ni and rare earths. The method solves the technical problem of denitrification during the sintering process of titanium carbonitride well, can improve production efficiency and product stability, and is simple to operate, low in cost, and is conducive to mass production. The prepared titanium carbonitride-based metal ceramic material has high hardness, strength and excellent wear resistance, and is an ideal material for cutting tools and structural parts.
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