TY - JOUR
T1 - A comprehensive study for microstructure and properties of Mo2TiAlC2 MAX phase
T2 - Linking first-principle simulation and experimental approach
AU - Zhang, Jiachen
AU - Na, Qingze
AU - Feng, Pengfa
AU - Zuo, Yufei
AU - Geng, Fanshu
AU - Ma, Tiantian
AU - Li, Rui
AU - Zhang, Guojun
AU - Su, Haijun
N1 - Publisher Copyright:
© 2025 Elsevier Ltd
PY - 2025/8
Y1 - 2025/8
N2 - In this paper, the MAX Mo₂TiAlC₂ bulk, a new layered ternary carbide with excellent mechanical properties, was synthesized via hot-pressing sintering. The phase and microstructure of MAX Mo₂TiAlC₂ were revealed with respect to the effects of different soaking durations by means of X-ray diffraction patterns and scanning electron microscopy. Moreover, its unique layered structure was disclosed by means of high-resolution transmission electron microscopy. The compressive strength, flexural strength and fracture toughness of MAX Mo₂TiAlC₂ with different soaking durations were measured by means of compression tests and three-point bending tests. The spectacular mechanical properties in different directions caused by the lamellar structure and the unique atomic bonding were discussed by combining the first-principles calculations with the fracture morphology.
AB - In this paper, the MAX Mo₂TiAlC₂ bulk, a new layered ternary carbide with excellent mechanical properties, was synthesized via hot-pressing sintering. The phase and microstructure of MAX Mo₂TiAlC₂ were revealed with respect to the effects of different soaking durations by means of X-ray diffraction patterns and scanning electron microscopy. Moreover, its unique layered structure was disclosed by means of high-resolution transmission electron microscopy. The compressive strength, flexural strength and fracture toughness of MAX Mo₂TiAlC₂ with different soaking durations were measured by means of compression tests and three-point bending tests. The spectacular mechanical properties in different directions caused by the lamellar structure and the unique atomic bonding were discussed by combining the first-principles calculations with the fracture morphology.
KW - Deformation mechanism
KW - First principles
KW - Mechanical properties
KW - Mo₂TiAlC₂
UR - http://www.scopus.com/inward/record.url?scp=85219737781&partnerID=8YFLogxK
U2 - 10.1016/j.ijrmhm.2025.107134
DO - 10.1016/j.ijrmhm.2025.107134
M3 - 文章
AN - SCOPUS:85219737781
SN - 0263-4368
VL - 130
JO - International Journal of Refractory Metals and Hard Materials
JF - International Journal of Refractory Metals and Hard Materials
M1 - 107134
ER -