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Promising MAX Phase Material: Ti3SiC2

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Update time : 2020-08-20 10:31:04

What Is MAX Ti3SiC2 Material

Titanium silicon carbide (Ti3SiC2) is a kind of comprehensive ceramic material, belonging to MAX phase material, which has the characteristics of ceramic and metal at the same time. The development opportunity of this material was roughly in the 1980s, due to the rapid development of fiber, whisker and other reinforcing agents and the requirements of aviation high thrust-to-weight ratio engines, ceramic matrix composites became a research hotspot.


The toughness can be improved by fiber and whisker enhancement, but it is still difficult to be used due to high preparation cost and poor reliability. To solve this problem, researchers began to explore high-temperature materials with both metal and ceramic properties, and finally found a type of titanium carbide (Ti3SiC2) in ti-SI-C system.


Ti3SiC2 has good thermal and electrical properties at room temperature, relatively low Vickers hardness and high elastic modulus. Ductile at room temperature, can be machined like a metal, and plastic at high temperatures; At the same time, it has the properties of ceramic materials, with high yield strength, high melting point, high thermal stability and good oxidation resistance, which can maintain high strength at high temperature. More significant is that it has lower friction coefficient and better self-lubrication performance than traditional solid lubricant graphite and molybdenum disulfide.


As early as in December 2005, the state Ministry of Science and Technology in our country has issued a dynamic said: one with independent intellectual property rights, Ti3SiC2 conductive ceramic production of a new generation of high-speed train pantograph slide in the national 863 program, high performance structural material technical topics, domestic developed with funding from the project to undertake unit Beijing Jiaotong university after two years in succession to conquer the high-purity Ti3SiC2, Ti3AlC2, Ti2SnC ceramic powder bulk synthesis technology, skateboard manufacture process, to complete the study of physical and chemical properties, skateboarding loading test run. The Ti3SiC2 series ceramic skateboards successfully developed by this research group are featured with high conductivity, impact resistance, abrasion resistance, arc ablation resistance, low abrasion of the contact wire, etc., effectively solving the problems such as fast abrasion of the carbon based and powder metallurgy skateboards used at home and abroad, easy to be broken, and great damage to the contact wire. The Ti3SiC2 ceramic skateboard successfully developed in that year played an important role in the development of high-speed railway in China.

Application of Ti3SiC2

Ti3SiC2 has a wide range of application prospects in biomedicine: In dentistry, materials or parts used in the oral environment are required to withstand long-term oxidation and maintain stability, but also need to have good workability and plasticity. Ti3SiC2 has both the performance of ceramic materials and metal characteristics, and at the same time has good biocompatibility, making it possible to be applied to the human body. Ti3SiC2 can be machined into precise-sized threads without lubricant, so it can be made into implants or restorations for clinical applications in oral medicine. Compared with zirconia (1.9×105MPa), the elastic modulus of Ti3SiC2 is closer to tooth enamel or dentin, which increases its potential for use in post or porcelain dental crowns. The Ti3SiC2 material obtained from self-propagating high temperature contains a porous structure, which may be easier to organize and bond with it. The low coefficient of friction makes it possible to be used in orthodontics to increase sliding and reduce friction resistance. Corrosion resistance and oxidation resistance are important conditions for the material to be used in the oral environment and maintain its stability. This material and porcelain powder are both ceramic materials, and the degree of bonding may be better than that of metal and porcelain. Therefore, the application range of porcelain dental crowns may be wider.


Ti3SiC2 also has quite good development prospects in refractory materials. With the promotion of rapid firing technology in the ceramic industry, the cycle period of kiln furniture use is getting shorter and shorter, and the use conditions are more demanding. Therefore, it is necessary to continuously improve the thermal shock resistance of kiln furniture materials to meet the rapid firing technology of the ceramic industry. Development needs. As a kind of high-grade refractory material, the quality of kiln furniture has an important influence on the quality of fired products. Ti3SiC2 ceramic material is not sensitive to thermal shock, and its unique layered structure and plastic behavior at high temperature can alleviate the effect of thermal stress. The residual strength of the material after the thermal shock of △T=1400℃ is still above 300MPa, and the thermal shock resistance can withstand a temperature difference of 900℃. At the same time, Ti3SiC2 ceramic material has the advantages of good chemical resistance, easy processing, and relatively low raw material cost, making it an ideal kiln furniture material to be developed.


TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years’ experience in providing super high quality chemicals and Nano materials. The Ti3SiC2 produced by our company has high purity, fine particle size and impurity content. Lower, please contact us if necessary.

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