非氧化物陶瓷作为结构陶瓷的重要组成之一,在冶金、化工、机械和航空航天等领域扮演着重要的角色,但上述领域的高温气固界面反应很大程度上限制了非氧化物陶瓷功效的发挥,因而深入研究非氧化物陶瓷的高温气固界面反应动力学及多尺度表征,进而预测材料服役寿命和提升材料性能就显得尤为关键。本专著从非氧化物陶瓷的基本介绍入手,关注典型的高温气固界面特征及基本规律,在此基础上对相关动力学模型的发展及最新动态进行介绍,对典型的多尺度表征方法的基本原理进行介绍。选取核心案例进行应用介绍,旨在加强读者对该领域了解的同时,能够初步掌握动力学模型和多尺度表征手段的使用和分析方法。
1 Introduction2 General types of gas-solid interface reaction NOCs2.1 Oxidation2.2 Simultaneous oxidation and volatilization3 Kinetic models in theoretical approach3.1 Oxidation3.1.1 Passive oxidation models3.1.2 Activepassive oxidation transition models3.2 Coexistence of oxidation and volatilization3.2.1 Paralinear model3.2.2 Double-interfaces model3.2.3 Digital-physical coupling model3.2.4 Discussion4 Advanced instruments in experimental approach4.1 Testing furnaces and TG analysis4.2 Characterization instruments4.2.1 XRD analysis4.2.2 OM analysis4.2.3 SEM analysis4.2.4 TEM analysis4.2.5 AFM analysis4.2.6 RS analysis4.2.7 XPS analysis4.2.8 SIMS analysis4.3 Discussion5 First-principle calculation and molecular dynamics in simulative approach5.1 First-principle calculation5.2 Molecular dynamics5.3 Discussion6 Typical cases6.1 Si3N46.1.1 Initial oxidation evolution at the atomic and molecular levels6.1.2 Oxidation behavior under different atmospheres6.2 SiC6.2.1 SiC powders6.2.2 SiC fibers6.3 MAX phase6.3.1 Oxidation mechanism with and without Sn doping6.3.2 Effect of Sn doping concentration on the oxidation7 Summary and outlookReferences