| Abstract: | A natural single crystal of ilmenite (FeTiO3) was irradiated at 100 K with 200 keV Ar2+. Rutherford backscattering spectroscopy and ion channeling with 2 MeV He+ ions were used to monitor damage accumulation in the surface region of the implanted crystal. At an irradiation fluence of 1 ?? 1015 Ar2+/cm2, considerable near-surface He+ ion dechanneling was observed, to the extent that ion yield from a portion of the aligned crystal spectrum reached the yield level of a random spectrum. This observation suggests that the near-surface region of the crystal was amorphized by the implantation. Cross-sectional transmission electron microscopy and electron diffraction on this sample confirmed the presence of a 150 nm thick amorphous layer. These results are compared to similar investigations on geikielite (MgTiO3) and spinel (MgAl2O4) to explore factors that may influence radiation damage response in oxides. |
| Genre: | Article |
| ProdID: | 70019923 |
| Citation Author: | Mitchell, J. N.; Yu, N.; Devanathan, R.; Sickafus, K. E.; Nastasi, M. A.; Nord, Jr. , G. L. |
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| Citation End Page: | 633 |
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| Citation Language: | English |
| Citation Larger Work Title: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
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| Citation Number Of Pages: | 5 |
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| Citation Publisher: | Elsevier |
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| Citation Search Results Text: | Ion irradiation damage in ilmenite at 100 K; 1997; Article; Journal; Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms; Mitchell, J. N.; Yu, N.; Devanathan, R.; Sickafus, K. E.; Nastasi, M. A.; Nord, Jr. , G. L. |
| Citation Start Page: | 629 |
| Citation Volume: | 127-128 |
| Citation Year: | 1997 |
| Type: | citation/reference |
| Text: | Ion irradiation damage in ilmenite at 100 K; 1997; Article; Journal; Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms; Mitchell, J. N.; Yu, N.; Devanathan, R.; Sickafus, K. E.; Nastasi, M. A.; Nord, Jr. , G. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1016/S0168-583X(96)01140-8 |
| Date Other: | Wed, 1 Jan 1997 00:00 -0600 |
| Publisher: | Elsevier |
