Combustion synthesis of (Ti1−xNbx)2AlC solid solutions from elemental and Nb2O5/Al4C3-containing powder compacts

Yeh, C.L.; Chen, J.H.

doi:10.1016/j.ceramint.2011.05.045

Cited by 18 publications

(11 citation statements)

References 39 publications

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“…Indeed quaternary MAX phases have attracted research interest as there is potential to fine tune the properties of a given MAX phase . For example, the right amount of Ge added to Cr 2 AlC allowed the resulting MAX phase solid solution to display an isotropic thermal expansion .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and physical properties of (Zr_1−x,Ti_x)₃AlC₂MAX phases

et al. 2017

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MAX phase solid solutions physical and mechanical properties may be tuned via changes in composition, giving them a range of possible technical applications. In the present study, we extend the MAX phase family by synthesizing (Zr 1Àx Ti x ) 3 AlC 2 quaternary MAX phases and investigating their mechanical properties using density functional theory (DFT). The experimentally determined lattice parameters are in good agreement with the lattice parameters derived by DFT and deviate <0.5% from Vegard's law. Ti 3 AlC 2 has a higher Vickers hardness as compared to Zr 3 AlC 2 , in agreement with the available experimental data. The first (n=1) and second (n=2) members of the family are known as the 211 and 312 MAX phases respectively. A feature of them is the highly symmetric unit cell with atomic layers stacked along the c-direction. Numerous MAX phases were synthesized that shared these metallic and ceramic properties (good machinability, high melting temperature, high thermal shock resistance, high elastic stiffness, high thermal, and electrical conductivity), effectively motivating their technological application. [2][3][4][5] The key for the metallic and ceramic properties is the structure that consists of the stacking of M n+1 X n "ceramic" layer(s) interleaved by an A "metallic" layer. 2-5Ti-based MAX phases such as Ti 3 AlC 2 are of significant technical interest as they have excellent properties combined with a strong oxidation resistance in air due to formation of a passivating Al 2 O 3 outer layer.6 Related MAX phases have been investigated as candidate materials for passive safety protection of nuclear fuel cladding

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Section: Introductionmentioning

confidence: 99%

Synthesis and physical properties of (Zr_1−x,Ti_x)₃AlC₂MAX phases

et al. 2017

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“…It is involved complicated reactions of related elements and compounds and usually results in unwanted secondary phases. Hence, preparing MAX phase bulks with high-purity attracts worldwide attention over last two decades, and several methods, such as hot isostatic pressing (HIP) [4,14,38], HPing [16,17,28,39], pressureless sintering (PLS) [26,29,40,41], self-propagation high-temperature synthesis (SHS) [42][43][44], spark plasma sintering (SPS) [45][46][47][48], and microwave sintering (MWS) [49,50], have been extensively investigated. Although most MAX phase bulks can be prepared by HIP and HP, only small samples with simple shape can be obtained.…”

Section: Preparation Of Max Phase Bulksmentioning

confidence: 99%

From structural ceramics to 2D materials with multi-applications: A review on the development from MAX phases to MXenes

et al. 2021

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MAX phases (Ti3SiC2, Ti3AlC2, V2AlC, Ti4AlN3, etc.) are layered ternary carbides/nitrides, which are generally processed and researched as structure ceramics. Selectively removing A layer from MAX phases, MXenes (Ti3C2, V2C, Mo2C, etc.) with two-dimensional (2D) structure can be prepared. The MXenes are electrically conductive and hydrophilic, which are promising as functional materials in many areas. This article reviews the milestones and the latest progress in the research of MAX phases and MXenes, from the perspective of ceramic science. Especially, this article focuses on the conversion from MAX phases to MXenes. First, we summarize the microstructure, preparation, properties, and applications of MAX phases. Among the various properties, the crack healing properties of MAX phase are highlighted. Thereafter, the critical issues on MXene research, including the preparation process, microstructure, MXene composites, and application of MXenes, are reviewed. Among the various applications, this review focuses on two selected applications: energy storage and electromagnetic interference shielding. Moreover, new research directions and future trends on MAX phases and MXenes are also discussed.

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“…Thus our ab initio calculations on the Ti 2 Al(C x N 1−x ) solid solution is a timely effort to link computation to experimental efforts and in understanding some of the fundamental issues in MAX phases. More recently, MAX phase solid solutions of M site [11][12][13][14][15], A site [16,17] and X site [18,19] have been investigated by several research groups. Most of them focusing on the synthesis of the solid solution phases in the form of thin films, and few with large scale calculations.…”

Section: Introductionmentioning

confidence: 99%

Elastic and electronic properties of Ti2Al(C N1−) solid solutions

Aryal

Sakidja

Ouyang

et al. 2015

Journal of the European Ceramic Society

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The elastic coefficients and mechanical properties (bulk modulus, shear modulus, Young's modulus and Poisson's ratio) of Ti 2 Al(C x N 1−x ) continuous solid solutions for x from 0 to 1 are calculated using ab initio DFT methods on 4 × 4 × 1 supercell models. It is shown that the properties of these solid solutions do not vary linearly with x. Although the lattice constant c is almost constant for x ≤ 0.5, a increases linearly. For x > 0.5, c starts to increase with x while the rate of increase in a slows down. For x between 0.5 and 0.85, the elastic coefficients and the mechanical parameters show interesting dependence on x and crossovers, signifying the complex interplay in the structure and properties in Ti 2 Al(C x N 1−x ) solid solutions. The nonlinear variations in mechanical properties are explained in terms of subtle difference in the electronic structure and bonding between nitrides and carbides in complex MAX phase compounds.

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Combustion synthesis of (Ti1−xNbx)2AlC solid solutions from elemental and Nb2O5/Al4C3-containing powder compacts

Cited by 18 publications

References 39 publications

Synthesis and physical properties of (Zr_1−x,Ti_x)₃AlC₂MAX phases

Synthesis and physical properties of (Zr_1−x,Ti_x)₃AlC₂MAX phases

From structural ceramics to 2D materials with multi-applications: A review on the development from MAX phases to MXenes

Elastic and electronic properties of Ti2Al(C N1−) solid solutions

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Combustion synthesis of (Ti1−xNbx)2AlC solid solutions from elemental and Nb2O5/Al4C3-containing powder compacts

Cited by 18 publications

References 39 publications

Synthesis and physical properties of (Zr1−x,Tix)3AlC2MAX phases

Synthesis and physical properties of (Zr1−x,Tix)3AlC2MAX phases

From structural ceramics to 2D materials with multi-applications: A review on the development from MAX phases to MXenes

Elastic and electronic properties of Ti2Al(C N1−) solid solutions

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Synthesis and physical properties of (Zr_1−x,Ti_x)₃AlC₂MAX phases

Synthesis and physical properties of (Zr_1−x,Ti_x)₃AlC₂MAX phases