MES rk project 2022-2024
“Optimization of an innovative method for the synthesis of aluminized titanium carbide as the main material for the production of 2D Mxene materials (Ti3C2, Ti2C)” (IRN AR14871554)
Expected scientific and practical results:
The optimal composition of the initial mixture and the optimal conditions for the synthesis of Ti3AlC2 and Ti2AlC will be selected in order to obtain a product of a given purity, crystallinity and the required yield of the finished product. Physicochemical analyzes of the synthesized materials will be carried out (XRF, SEM, particle size analysis); the influence of pressing the initial mixture of precursors on the mechanism of the chemical reaction during the synthesis of Ti3AlC2 and Ti2AlC will be established. 1 article will be prepared for publication in a journal peer-reviewed in the Scopus and WoS databases and 1 article will be prepared for a journal recommended by COXON MES RK;
Results:
- The synthesis of the MAX phase (Ti3AlC2 and Ti2AlC) was carried out by varying the initial precursors; the following ratios were used: TiC:Ti:Al, Ti:C:Al and Ti:C:Al4C3. The maximum product yield was obtained in the Ti3AlC2 sample using the TiC:Ti:Al ratio, where the amount of the main component is about 60%
- Using laser distribution analysis, the sizes of both the initial components for synthesis (TiC:Ti:Al and Ti:C:Al) and the resulting product were determined. An uneven distribution of the grain size of the resulting product according to particle sizes, varying from 1 to 150 microns, is shown.
- Thermal firing of a mixture of precursors (TiC:Ti:Al) was carried out at temperatures (from 1350℃ to 1500℃) and synthesis time (from 2 to 4 hours).
- The maximum product yield is observed during synthesis for 2 hours at 1350°C (67.2%). An increase in temperature reduces the yield of the product, which may be due to an increase in the proportion of sublimated aluminum. When precursors are coated with a protective layer of aluminum oxide, the final product is close to the commercial product, where the maximum phase content is 80–85%.
Contacts
Visiting hours 9.00-18.00, Mon-Fri
• Mal'chik Fedor Igorevich is a leading “researcher”, head of the laboratory “Electrochemical Production Technologies”.
• Phone: +7 707 244 2236
• Е-mail: frodo-007@mail.ru
• Phone: +7 707 244 2236
• Е-mail: frodo-007@mail.ru
•Address: Almaty city, Al-Farabi Avenue 71/23
