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New Solid Solution MAX Phases: (Ti-0.5, V-0.5)(3)AlC2, (Nb-0.5, V0.5)(2)AlC, (Nb-0.5, V-0.5)(4)AlC3 and (Nb-0.8, Zr-0.2)(2)AlC
Drexel University, PA 19104 USA.
Drexel University, PA 19104 USA.
Drexel University, PA 19104 USA.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering. Drexel University, PA 19104 USA.
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2014 (English)In: MATERIALS RESEARCH LETTERS, ISSN 2166-3831, Vol. 2, no 4, 233-240 p.Article in journal (Refereed) Published
Abstract [en]

We synthesized the following previously unreported aluminum-containing solid solution M(n+1)AX(n) phases: (Ti-0.5, V-0.5)(3)AlC2, (Nb-0.5, V-0.5)(2)AlC, (Nb-0.5, V-0.5)(4)AlC3 and (Nb-0.8, Zr-0.2)(2)AlC. Rietveld analysis of powder X-ray diffraction patterns was used to calculate the lattice parameters and phase fractions. Heating Ti, V, Al and C elemental powders-in the molar ratio of 1.5: 1.5: 1.3: 2-to 1, 450 degrees C for 2 h in flowing argon, resulted in a predominantly phase pure sample of (Ti-0.5, V-0.5)(3)AlC2. The other compositions were not as phase pure and further work on optimizing the processing parameters needs to be carried out if phase purity is desired.

Place, publisher, year, edition, pages
TAYLOR & FRANCIS INC , 2014. Vol. 2, no 4, 233-240 p.
Keyword [en]
MAX Phase; Solid Solution; Rietveld Analysis; HRTEM; Lattice Parameter
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-137423DOI: 10.1080/21663831.2014.932858ISI: 000209768000009OAI: oai:DiVA.org:liu-137423DiVA: diva2:1095563
Note

Funding Agencies|National Science Foundation [DMR 1310245]; Department of Energys Office of Nuclear Energy University Program [CFP-11-3231]; SSF synergy grant FUNCASE Functional Carbides and Advanced Surface Engineering; Knut and Alice Wallenberg Foundation

Available from: 2017-05-15 Created: 2017-05-15 Last updated: 2017-05-15

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