What is Ti3AlC2? Structure, Phase Composition, and Properties of Ti3AlC2—Nano-Cu Powder Composites Composites based on the MAX-phases are promising materials for various applications. Composites MAX-phase–copper can be used in electrical engineering as wear-resistant and durable sliding contact material. Such composites can be used as coatings on sliding contacts to improve local strength and wear resistance without significantly increasing production costs. In this work, Ti3AlC2—nano-Cu composites with the ratio Ti3AlC2:Cu = 1:1 by weight or approximately 4:1 by volume were studied. The main task of the study is to obtain a dense structure and check the effect of the sintering temperature of the samples on their design, phase composition, mechanical properties, and electrical conductivity. In addition, the sintered specimens were subjected to a hot isostatic pressing to increase the density further. It was found that the best combination of strength, density, and electrical conductivity is achieved after sintering at 1050 °C. A further increase in the sintering temperature leads to an intensification of the MAX phase decomposition process, and at a lower sintering temperature, the copper matrix remains incompletely formed.
The Ti3AlC2 MAX-phase has a low density The Ti3AlC2 MAX-phase has a low density, high modulus of elasticity, high strength at high temperatures, good workability, good oxidation resistance, excellent thermal and electrical conductivity, etc. MAX-phases can also be transformed into MXenes using an etching process. The first explored application of MXenes was in energy storage, which remains a large proportion of MXene activities. MXenes are also promising materials for electromagnetic applications. Thus, MAX-phases can improve mechanical properties by acting on the mechanism of a secondary hardening phase and also affect the electrical properties of the material when using MXenes It is challenging to obtain bulk products from the MAX-phase powders by powder metallurgy methods, in particular, due to the decomposition of the MAX-phase at elevated temperatures. Because the MAX phase has a layered structure, and its high-temperature molding is impossible due to decomposition processes, products from the MAX phase are predominantly porous. One of the promising methods for obtaining dense products based on the MAX phase is the production of metal matrix composites (MMCs). In such composites, the metal acts as a MAX phase binder and fills the pores.
Powder mixtures of Ti3AlC2 Powder mixtures of Ti3AlC2 and Cu were prepared with a ratio of 1:1 by weight within an hour. The resulting mixtures were pressed in a cylindrical die 20 mm at a load of 5 tons. The samples were sintered in a vacuum furnace (Nabertherm GmbH, Lilienthal, Germany) at temperatures from 800 to 1100 °C. The heating rate was 5 K/min, and the isothermal holding at the sintering temperature was two h. Experiments were also carried out on the hot isostatic pressing (HIP) of the obtained samples after sintering. HIP was carried out at a temperature of 1000 °C for 22 h at a gas pressure of 1600 bar. Models after vacuum sintering at 900 and 1000 °C were used for HIP.
Price of Ti3AlC2 Ti3AlC2 particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Ti3AlC2. A large amount of large amount will be lower. The Price of Ti3AlC2 is on our company's official website.
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