Damage tolerance of Ti₃SiC₂ to high energy iodine irradiation

Title: Damage tolerance of Ti₃SiC₂ to high energy iodine irradiation
Creator: Zhang, Lei; Qi, Q.; Shi, L. Q.; O'Connor, D. J.; King, B. V.; Kisi, E. H.; Venkatachalam, D. K.
Relation: Applied Surface Science Vol. 258, Issue 17, p. 6281-6287
Publisher Link: http://dx.doi.org/10.1016/j.apsusc.2012.03.022
Publisher: Elsevier BV, North-Holland
Resource Type: journal article
Date: 2012
Description: The microstructure of high fluence 2 MeVI²⁺ irradiated Ti₃SiC₂ has been studied by grazing incident X-ray diffraction (GIXRD) using synchrotron radiation. The shift and broadening of the observed diffraction peaks are due to a variety of defects ranging from atomic to micron scale in size. The observation of the surface micrograph reveals the microcrack formation at grain boundaries due to high irradiation damage. The Raman spectrum of Ti₃SiC₂ was measured and compared with that of TiC_0.67. It was found that a TiC nanocrystalline phase was formed under the high dose irradiation. However, a complete decomposition by irradiation did not take place even at 10.3 dpa. Post irradiation annealing to temperatures of 500–800 °C results in crystal regrowth of Ti₃SiC₂ and TiC phases.
Subject: MAX phase; ion irradiation; X-ray diffraction
Identifier: http://hdl.handle.net/1959.13/1310796
Identifier: uon:22092
Identifier: ISSN:0169-4332
Language: eng
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