Oxygen incorporation in M2AlC (M=Ti, V, Cr)

Baben, Moritz to; Shang, Lin; Emmerlich, Jens; Schneider, Jochen M.

doi:10.1016/j.actamat.2012.05.011

Cited by 58 publications

(46 citation statements)

References 48 publications

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“…Since then, more than 70 compounds have been fabricated through physical vapor deposition and other methods [22,24]. In recent years, ternary carbide Cr 2 AlC has attracted much attention because of its excellent high-temperature oxidation and hot corrosion resistance [14,[25][26][27], due to preferential formation of continuous protective Al 2 O 3 oxide at high temperatures [15]. Moreover, a small difference in thermal expansion coefficients between Cr 2 AlC and Ni-based alloys makes them along with Cr 2 (Al x ,Ge 1−x )C, potential protective film candidates at high temperature [28,29].…”

Section: Introductionmentioning

confidence: 99%

“…They are nanolamellas with M n+1 AX n (n is 1, 2, or 3) chemical formula, where M is an early transition metal, A is an A-group element from the periodic table and X is either carbon or nitrogen [1]. These compounds are known for their low density [1], high stiffness [2,3], superior thermal shock resistance [1,4], damage tolerance [5,6], self-healing behavior [7,8], significant electrical conductivity [4,9], and erosion [10], oxidation [11][12][13][14][15][16] and hot corrosion resistance [6,17]. Moreover, M n+1 AX n phases have been identified as promising candidates for hydrogen storage applications [18] along with other materials [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Sputtering Power Effects on Growth and Mechanical Properties of Cr2AlC MAX Phase Coatings

Naveed

Obrosov

Żak

et al. 2016

Metals

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Abstract:Coating growth and mechanical properties of nanolamellar Cr 2 AlC coatings at various sputtering power were investigated in the present study. Cr 2 AlC coating was deposited on the IN 718 superalloy and (100) Si wafers by DC magnetron sputtering at different sputtering powers. The structure and properties were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nanoindentation. It was found that coatings had columnar structure with nanocrystalline substructure. Deposition rate increased with the sputtering power. XRD results showed the presence of the Cr 2 AlC MAX phase, intermetallic AlCr 2 and Cr 7 C 3 carbide phases, along with the change in preferential coating growth orientation. TEM observations confirmed the occurrence of these phases, and the SAED patterns demonstrated significant texture of the coatings. Hardness values were measured in the range between 11-14 GPa, showing a slight increase with the sputtering power.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sputtering Power Effects on Growth and Mechanical Properties of Cr2AlC MAX Phase Coatings

Naveed

Obrosov

Żak

et al. 2016

Metals

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“…The MAX phases have been extensively studied not only in order to shed light on their unique combination of properties but also to explore their potential for numerous industrial applications (see review articles [1,2,3,4] and recent examples [5,6,7,8,9,10,11,12,13]). It has long been appreciated that a promising strategy to tailor properties is to form solid solutions on the M, A and/or X sites [1,2].…”

Section: Introductionmentioning

confidence: 99%

Tailoring of the thermal expansion of Cr2(Alx,Ge1−x)C phases

Cabioc’h¹,

Eklund²,

Mauchamp³

et al. 2013

Journal of the European Ceramic Society

106

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“…Recently the incorporation of interstitial oxygen in Cr 2 AlC was reported. 15 This incorporation may be of relevance during the initial stages of oxidation and hence self-healing of Cr 2 AlC.…”

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confidence: 99%