2025년도 한국세라믹학회 추계학술대회 KCerS 우수포스터상을 김창중 석사과정이 수상하였습니다. 축하드립니다.
Author: H.Kim†, H.Son†, Y.Jeong, J.Kim*Title: High-temperature stability in Ti-based MAX phases: vacancy effects on mechanical properties Journal: Journal of Korean Ceramic SocietyYear: 2025Impact factor: 3.8Abstract:Tin+1AlCn MAX phases are of interest due to their high-temperature mechanical properties. In this study, we investigated their structural and mechanical properties up to 2000 K using molecular dynamics (MD) tensile simulations and density functional theory (DFT) calculations, focusing on the effect of vacancies. The presence of up to 12.5% Al vacancies reduced the vertical Young’s modulus by only 12.59% and left the UTS almost unchanged, demonstrating considerable mechanical robustness. In contrast, the same concentration of Ti vacancies degraded the Young’s modulus by 40.7% at 2000 K. Electron localization function (ELF) analysis confirmed that the mechanical properties are dominated by strong Ti–C covalent bonds, which are not weakened by Al vacancies. In comparison to B1-type TiC, whose Young’s modulus decreases by ~ 32% at 2000 K, Tin+1AlCn retains over 88% of its room-temperature vertical Young’s modulus. This work provides a theoretical basis for considering Tin+1AlCn MAX phases as potential high-temperature structural materials.
연구실에서 석사과정을 마친 이진용 석사가 LG에너지솔루션 CPO 직무에 합격하였습니다. 축하드립니다.