TiAl intermetallic compound-based solid seif-lubricating composite material and preparation method thereof

An intermetallic compound, solid self-lubricating technology is applied in the field of TiAl intermetallic compound-based solid self-lubricating composite materials and their preparation, and achieves the effects of reducing synthesis cost, strong feasibility and simple equipment
CN102492871AInactive Publication Date: 2012-06-13WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2012-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a TiAl intermetallic compound-based solid seif-lubricating composite material which comprises Ti3SiC2, Ti2AlC and C which are used as the ternary composite lubricating phase and TiC which is used as the reinforced phase, and a preparation method thereof. The TiAl intermetallic compound-based solid seif-lubricating composite material is characterized in that the material is prepared from Ti powder, Al powder, Cr powder, Nb powder, B powder and Ti3SiC2 powder, wherein the molar ratio of Ti, Al, Cr, Nb and B is 48:47:2:2:1 and the dosage of the Ti3SiC2 powder is 5-20wt.% of the total weight of the Ti powder, Al powder, Cr powder, Nb powder and B powder. The TiAl / Ti3SiC2-Ti2AlC-C / TiC intermetallic compound-based solid seif-lubricating composite material synthesized by the method is novel in component design (the intermetallic compound matrix, the composite lubricating phase and the reinforced phase), high in density, good in tribological properties, stable in technological parameters, fast and simple in preparation process and easy in operation and the method is suitable to be used to prepare the high performance TiAl intermetallic compound-based solid seif-lubricating composite material.
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Description

technical field

[0001] The present invention relates to a kind of containing Ti 3 SiC 2 、Ti 2 The invention discloses a TiAl intermetallic compound-based solid self-lubricating composite material of AlC and C ternary composite lubricating phase and reinforcing phase TiC and a preparation method thereof. Background technique

[0002] Solid self-lubricating materials with good tribological properties from room temperature to high temperature are urgent problems to be solved in cutting-edge industrial fields. Compared with traditional liquid lubricants, solid lubricants have advantages in the field of high-temperature friction. Rational use of the synergistic lubrication effect of multiple lubricants is one of the effective methods to achieve lubrication in a wide temperature range from room temperature to high temperature. Recently, material scientists are constantly researching new high-performance high-temperature self-lubricating and wear-resistant materials, which not ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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