Synthesis and Oxidation Testing of <scp>MAX</scp> Phase Composites in the Cr–Ti–Al–C Quaternary System

Horlait, Denis; Grasso, Salvatore; Nasiri, Nasrin Al; Burr, Patrick A.; Lee, William

doi:10.1111/jace.13962

Cited by 68 publications

(53 citation statements)

References 62 publications

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“…The structure consists of the stacking of n “ceramic” layer(s) inserted by an A “metallic” layer . A good number of MAX phase compounds have then been synthesized and the physical properties investigated . For example, the M 2 AX phases with M = (Ti, V, Cr, Nb, Ta, Zr, Hf); A = (Al, S, Sn, As, In, Ga), and X = (N, C) have been studied both experimentally and theoretically because of their attractive properties as stated earlier .…”

Section: Introductionmentioning

confidence: 99%

Predicted MAX Phase Sc₂InC: Dynamical Stability, Vibrational and Optical Properties

Chowdhury

Ali

Hossain

et al. 2017

Physica Status Solidi (b)

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First principles pseudopotential calculations have been performed for the first time to investigate the phonon dispersion, thermodynamic and optical properties including charge density, Fermi surface, Mulliken population analysis, theoretical Vickers hardness of predicted MAX phase Sc2InC. We revisited the structural, elastic, and electronic properties of the compound which assessed the reliability of our calculations. The analysis of the elastic constants and the phonon dispersion along with phonon density of states indicates the mechanical stability and dynamical stability of the Sc2InC. The Helmholtz free energy, internal energy, entropy specific heat capacity, and Debye temperature have also been calculated. Mulliken population analysis indicates the existence of prominent covalency in chemical bonding of Sc2InC. The electronic charge density mapping shows a combination of ionic, covalent and metallic bonding in the compound. The Fermi surface is comprised due to the low‐dispersive Sc 3d and C 2p states from the [ScC] blocks. The phase is expected to be a soft material and easily machinable due to its low Vickers hardness value. Furthermore, the analysis of various optical properties suggests that the nanolaminate Sc2InC is a promising candidate for optoelectronic devices in the visible and ultraviolet energy regions and as a coating material to avoid solar heating.

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Section: Introductionmentioning

confidence: 99%

Predicted MAX Phase Sc₂InC: Dynamical Stability, Vibrational and Optical Properties

Chowdhury

Ali

Hossain

et al. 2017

Physica Status Solidi (b)

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“…Mixing of more than one species in one (or more) sublattices in the MAX phase crystal structure potentially has important consequences from the point of view of phase stability. Sufficiently exothermic interactions may lead to the stabilization of ordered phases, as exemplified by the (Cr 2/3 Ti 1/3 ) 3 AlC 2 system [11][12][13]. These compounds in some cases have functionalities that are dramatically different from the parent compounds [14].…”

Section: Introductionmentioning

confidence: 99%

Does aluminum play well with others? Intrinsic Al-A alloying behavior in 211/312 MAX phases

Arróyave

Talapatra

Duong

et al. 2016

Materials Research Letters

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The search for further control over the properties of MAX phases as well as the promise of discovering compounds with new functionalities has resulted in an increased interest in MAX solid solutions resulting from mixing in either the M, A, or X sublattices. The possibility of alloying MAX compounds not only enables finer tuning of their properties but can also be used to stabilize compounds that may otherwise be metastable in their pure state. In this letter, we present an ab initio-based investigation of the intrinsic alloying behavior in the A sublattice of Ti 2 (Al,A)C, Zr 2 (Al,A)C and Ti 3 (Al,A)C 2 MAX compounds. IMPACT STATEMENTIn this work, we present for the first time a comprehensive study of the intrinsic alloying tendencies in MAX solid solutions with (Al,A) mixing in the A sublattice. ARTICLE HISTORY

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“…the partial substitution of either the M, A or X element by a fourth element). [11,12] The latter is almost limitless in terms of possible combinations. Recently, Naguib et al listed 24 quaternary MAX phases for which at least one composition was already reported in the open literature, [11] some of them also existing with different n values.…”

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confidence: 99%

Attempts to synthesise quaternary MAX phases (Zr,M)₂AlC and Zr₂(Al,A)C as a way to approach Zr₂AlC

Horlait

Grasso

Chroneos

et al. 2016

Materials Research Letters

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Despite having never been synthesized, the MAX phase Zr 2 AlC attracts a lot of interest owing to its foreseen properties. A possible way to circumvent this obstacle is to stabilize Zr 2 AlC by partially substituting one of its constituting elements. Here we report on attempts to synthesise quaternary MAX phases (Zr,M) 2 AlC and Zr 2 (Al,A)C where M = Cr, Ti or Mo and A = S, As, Sn, Sb and Pb. We were notably able to produce Zr 2 (Al 0. IntroductionThe MAX phases are a family of carbides and nitrides crystallizing with the hexagonal P6 3 /mmc structure in the general formula M n+1 AX n with n being an integer, M being an early transition metal, A being a group 13-16 element and X being C and/or N.[1] Around 70 ternary MAX phases can be synthesized as a bulk phase. More than half of known MAX phases with n = 1 were first reported in the 1960s by Nowotny et al. [2] and named 'H-phases'. They were almost completely ignored for two decades until Barsoum and El-Raghy renewed interest in 1996 by reporting the remarkable properties of Ti 3 SiC 2 ,[3] then demonstrating these properties were shared by the other MAX phases [4,5] and by finally defining the current 'MAX phase' appellation and definition.[6] Owing to their structure consisting of the stacking of n 'ceramic' layer(s) of MX interleaved by an A 'metallic' plane, MAX phases show a combination of both ceramic and metallic features (high thermal shock resistance, good machinability and high thermal and electrical conductivities, alike most metals; high decomposition or melting temperature, high elastic stiffness, and high oxidation and corrosion resistance as

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Synthesis and Oxidation Testing of MAX Phase Composites in the Cr–Ti–Al–C Quaternary System

Cited by 68 publications

References 62 publications

Predicted MAX Phase Sc₂InC: Dynamical Stability, Vibrational and Optical Properties

Predicted MAX Phase Sc₂InC: Dynamical Stability, Vibrational and Optical Properties

Does aluminum play well with others? Intrinsic Al-A alloying behavior in 211/312 MAX phases

Attempts to synthesise quaternary MAX phases (Zr,M)₂AlC and Zr₂(Al,A)C as a way to approach Zr₂AlC

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Synthesis and Oxidation Testing of MAX Phase Composites in the Cr–Ti–Al–C Quaternary System

Cited by 68 publications

References 62 publications

Predicted MAX Phase Sc2InC: Dynamical Stability, Vibrational and Optical Properties

Predicted MAX Phase Sc2InC: Dynamical Stability, Vibrational and Optical Properties

Does aluminum play well with others? Intrinsic Al-A alloying behavior in 211/312 MAX phases

Attempts to synthesise quaternary MAX phases (Zr,M)2AlC and Zr2(Al,A)C as a way to approach Zr2AlC

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Predicted MAX Phase Sc₂InC: Dynamical Stability, Vibrational and Optical Properties

Predicted MAX Phase Sc₂InC: Dynamical Stability, Vibrational and Optical Properties

Attempts to synthesise quaternary MAX phases (Zr,M)₂AlC and Zr₂(Al,A)C as a way to approach Zr₂AlC