A comprehensive study for microstructure and properties of Mo2TiAlC2 MAX phase: Linking first-principle simulation and experimental approach

被引：0

作者：

Zhang, Jiachen ^{[1
,2
]}

Na, Qingze ^{[1
]}

Feng, Pengfa ^{[2
]}

Zuo, Yufei ^{[2
]}

Geng, Fanshu ^{[1
]}

Ma, Tiantian ^{[1
]}

Li, Rui ^{[1
]}

Zhang, Guojun ^{[1
]}

Su, Haijun ^{[3
]}

机构：

[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China

[2] Jinduicheng Molybdenum Co Ltd, Xian 710077, Peoples R China

[3] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2025年 / 130卷

基金：

中国博士后科学基金;

关键词：

Mo2TiAlC2; Mechanical properties; First principles; Deformation mechanism; SITU REACTION SYNTHESIS; MECHANICAL-PROPERTIES; DEFORMATION; CERAMICS; TI3ALC2; BEHAVIOR; TI3SIC2; TI2ALC;

D O I：

10.1016/j.ijrmhm.2025.107134

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the MAX Mo2TiAlC bulk, a new layered ternary carbide with excellent mechanical properties, was synthesized via hot-pressing sintering. The phase and microstructure of MAX Mo2TiAlC 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 Mo2TiAlC 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.

引用

页数：6

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