Effect of Added Molybdenum on Material Properties of Zr2SC MAX Phase Produced by Self-Propagating High Temperature Synthesis
RYUICHI Tomoshige, KIYOHITO Ishida, HITOSHI Inokawa
download PDFAbstract. Zr2SC MAX phase with the layered structures was produced by self-propagating high temperature synthesis (SHS). Basic composition for MAX phase was determined in molar ratio of Zr:S:C=2:1:1. In addition, molybdenum of transition metal element was added according to the molar ratio of Zr:Mo:S:C=2-x:x:1:1 (x = 0 to 1.2) in order to attempt a formation of solid solution of MAX phase. SHS was initiated by using a metal heating coil. The synthesized materials were evaluated by XRD, Vickers hardness tests, SEM and TEM. XRD patterns of the synthesized MAX phases showed proof of formation of solid solution up to 20 at% of added molybdenum to zirconium. SEM observations revealed that the interlayer of monolithic Zr2SC phase bonded strongly each other, and it looked like the structure in which it must be difficult to occur the interlayer exfoliation. On the other hand, molybdenum-added MAX phase had the interlayer structure at which it must be easy to exfoliate. TEM observations showed that the material was consisted of thin lamellas with about 10 nm thickness.
Keywords
Combustion Synthesis, MAX Phase, Layered Structures, Carbosulfide
Published online 7/30/2019, 6 pages
Copyright © 2019 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: RYUICHI Tomoshige, KIYOHITO Ishida, HITOSHI Inokawa, Effect of Added Molybdenum on Material Properties of Zr2SC MAX Phase Produced by Self-Propagating High Temperature Synthesis, Materials Research Proceedings, Vol. 13, pp 79-84, 2019
DOI: https://doi.org/10.21741/9781644900338-14
The article was published as article 14 of the book Explosion Shock Waves and High Strain Rate Phenomena
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References
[1] M. Radovic, M.W. Barsoum, MAX phases: Bridging the gap between metals and ceramics, Am. Ceram. Soc. Bull. 92(3) (2013) 20-27.
[2] Y.Medkour, A.Roumili, D.Maouche, L.Louail, 7- Electrical properties of MAX phases, in: M Low (Eds.), Advances in Science and Technology of Mn+1AXn Phases, Woodhead Publishing, Cambridge, 2012, pp. 159-175. https://doi.org/10.1533/9780857096012.159
[3] W.K. Pang, I.M. Low, Understanding and improving the thermal stability of layered ternary carbides in ceramic matrix composites, in: M Low (Eds.), Advances in Ceramic Matrix Composites, Woodhead Publishing, Cambridge, 2014, pp 340-368. https://doi.org/10.1533/9780857098825.2.340
[4] V. Jovic, M. Barsoum, Corrosion Behavior and Passive Film Characteristics Formed on Ti, Ti3SiC2, and Ti4AlN3 in H2SO4 and HCl, J. Electrochem. Soc. Vol.151(2) (2004) B71-B76. https://doi.org/10.1149/1.1637897
[5] M. Naguib, G. W. Bentzel, J. Shah, J. Halim, E. N. Caspi, J. Lu, L. Hultman, M. W. Barsoum, New Solid Solution MAX Phases: (Ti0.5, V0.5)3AlC2, (Nb0.5, V0.5)2AlC, (Nb0.5, V0.5)4AlC3 and (Nb0.8, Zr0.2)2AlC, Mater. Res. Lett. 2(4) (2014) 233-240. https://doi.org/10.1080/21663831.2014.932858
[6] R.Tomoshige, K. Niitsu, T.Sekiguchi, K.Oikawa, K.Ishida, Some Tribological Properties of SHS-Produced Chromium Sulfide, Int. J. self-propagating high temperature synthesis, 18 (4) (2009) 287-292. https://doi.org/10.3103/s1061386209040104
[7] V.Buck, Morphological properties of sputtered MoS2 films, Wear. 91 (1983) 281–288. https://doi.org/10.1016/0043-1648(83)90073-x
[8] K.J.Wahl, I.L. Singer, Quantification of a lubricant transfer process that enhances the sliding life of a MoS2 coating, Tribol. Lett. 1 (1995) 59–66. https://doi.org/10.1007/bf00157976
