Ion beam radiation damage effects in rutile (TiO2)

Hartmann, Thorsten; Wang, L.M; Weber, William J.; Yu, Ning; Sickafus, Kurt E.; Mitchell, J. N.; Wetteland, C. J.; Nastasi, M.; Hollander, Mark; Baker, Neil; Evans, Caleb R.; Tesmer, J.R.; Maggiore, C.J.

doi:10.1016/s0168-583x(98)00134-7

Cited by 39 publications

(12 citation statements)

References 11 publications

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“…Hartmann et al showed that using lighter irradiation species such as He + are more likely to amorphize target substrates than heavy noble gases such as Xe 2+ and Ne +. Our recent study showed that proton irradiation could induce phase transformation in amorphous TiO 2 nanotubes to a disordered rutile phase at temperature of 250°C …”

Section: Introductioncontrasting

confidence: 52%

“…28 Hartmann et al showed that using lighter irradiation species such as He + are more likely to amorphize target substrates than heavy noble gases such as Xe 2+ and Ne +. 33 Our recent study showed that proton irradiation could induce phase transformation in amorphous TiO 2 nanotubes to a disordered rutile phase at temperature of 250°C. 34 Although these recent studies have shed light on the effects of irradiation on the order and functionality of TiO 2 , there remains limited understanding of the underlying microstructure-based mechanisms for these irradiationinduced changes.…”

Section: -34mentioning

confidence: 99%

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Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO₂ single crystal

Smith

Savva

et al. 2018

J Am Ceram Soc

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This study reports the microstructure evolution of single crystal rutile TiO2 under 3 MeV Nb+ ion irradiation, with the irradiating ions incident on the {100} plane. A complex, multi‐layered microstructure evolution is observed with 4 distinct regions: (i) short‐range disorder in the first 60 nm below the specimen surface, (ii) dislocation loops oriented parallel to the incident ion beam direction, located along the increasing slope of the irradiation damage profile at ~60‐650 nm from the surface, (iii) loops oriented perpendicular to the incident ion beam direction, at depths encompassing the ion implantation and irradiation damage peaks ~650‐1250 nm, and (iv) a high density of nano‐scale atomic rearrangements with long‐range order, located at depths ~1250‐1750 nm. These results present evidence that multiple defect mechanisms occur during irradiation including ion channeling, nuclear stopping, and electronic stopping interactions as a function of depth and disorder accumulation.

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Section: Introductioncontrasting

confidence: 52%

Section: -34mentioning

confidence: 99%

Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO₂ single crystal

Smith

Savva

et al. 2018

J Am Ceram Soc

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“…Compared to other polymorphs of titania, rutile is known to be the most amorphization-resistant [46][47][48]. Hartmann showed that under heavy ion irradiation, single crystal rutile only amorphizes at temperatures below 200 K [49]. However, in our study, the amorphization of TiO 2-x was realized under irradiation at the relatively high temperature of 773 K. Based on the observation of Cr diffusion into the TiO 2-x layer, our hypothesis is that incorporation of Cr is the major reason for accelerating this amorphization process.…”

Section: Cr Enhanced Amorphizationmentioning

confidence: 99%

Solute redistribution and phase stability at FeCr/TiO2− interfaces under ion irradiation

Aguiar

Yadav

et al. 2015

Acta Materialia

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Cr diffusion in trilayer thin films of 100 nm Fe-18Cr / 125 nm TiO 2-x / 100 nm Fe-18Cr deposited on MgO substrates at 500 °C was studied by either annealing at 500 °C or Ni 3+ ion irradiation at 500 °C. Microchemistry and microstructure evolution at the metal/oxide interfaces were investigated using (high-resolution) transmission electron microscopy, energy-dispersive X-ray spectroscopy and electron energy loss spectroscopy. Diffusion of Cr into the O-deficient TiO 2 layer, with negligible segregation to the FeCr/TiO 2-x interface itself, was observed under both annealing and irradiation. Cr diffusion into TiO 2-x was enhanced in ion-irradiated samples as compared to annealed. Irradiation-induced voids and amorphization of TiO 2-x was also observed. The experimental results are rationalized using first-principles calculations that suggest energetic preference for substituting Ti with Cr in sub-stoichiometric TiO 2. The

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“…Limited information is available on how radiation damage affects the rutile crystal structure. Available data suggest that rutile is more resistant to radiation damage from heavy ions than the other TiO 2 polymorphs of anatase and brookite (Lumpkin et al, ), and that damage accumulation is slower at high than low temperatures (Hartmann et al, ). However, which type of damage affects rutile He retentivity, and the temperature range over which that damage accumulates or anneals, are unclear.…”

Section: Discussionmentioning

confidence: 99%

“…However, we are aware of no published rutile (U‐Th)/He (RHe) data for natural samples to evaluate if this experimentally determined closure temperature is relevant over geologic time scales, and there are no published stepwise‐degassing He diffusion data for this mineral to characterize He diffusion from the entire crystal. Moreover, although radiation damage strongly influences the He retentivity of some minerals (e.g., apatite, Shuster et al, ; zircon, Guenthner et al, ; titanite, Baughman et al, ), and some work exists on radiation damage effects on the rutile crystal structure (e.g., Hartmann et al, ; Lumpkin et al, ), how damage affects rutile He diffusion is unknown.…”

Section: Introductionmentioning

confidence: 99%

Rutile (U‐Th)/He Thermochronology: Temperature Sensitivity and Radiation Damage Effects

Robinson

Flowers

Metcalf

2019

Geochem Geophys Geosyst

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Rutile (TiO2) is a common U‐Th‐bearing accessory mineral in metamorphic and, to a lesser extent, igneous rocks. Its development as a (U‐Th)/He thermochronometer would diversify the lithologies dateable with the (U‐Th)/He technique. We report (U‐Th)/He dates for rutile with crystallization ages that vary from Cretaceous to Proterozoic from eight samples with independent constraints on their thermal history to empirically calibrate the temperature sensitivity of the rutile (U‐Th)/He (RHe) system. The results document an analytical challenge for the Proterozoic rutile, where degassing at laser powers typical for zircon volatilized the parent isotopes while lower laser powers failed to consistently and completely extract all 4He from the crystals. In contrast, the six Phanerozoic samples were easily degassed without U‐Th loss. RHe dates for five of these samples are fairly reproducible (6–22% dispersion) or yield positive RHe date‐eU correlations. RHe dates are older than or overlap with apatite (U‐Th)/He dates available for four of these samples and are younger than zircon (U‐Th)/He dates available for two of these samples. This implies that the He closure temperature (Tc) for these Phanerozoic rutile is between apatite (~70 °C) and lower damage zircon (~200 °C). We also conducted two 4He diffusion experiments. These data are consistent with anisotropic He diffusion and yield Tc estimates of ~155–159 °C for diffusion parallel to the c axis (at a 10 °C/Ma cooling rate). These diffusion experiment results, the degassing patterns for Phanerozoic versus Proterozoic rutile, and the positive RHe date‐eU correlations in two samples imply that radiation damage increases rutile He retentivity.

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Ion beam radiation damage effects in rutile (TiO2)

Cited by 39 publications

References 11 publications

Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO₂ single crystal

Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO₂ single crystal

Solute redistribution and phase stability at FeCr/TiO2− interfaces under ion irradiation

Rutile (U‐Th)/He Thermochronology: Temperature Sensitivity and Radiation Damage Effects

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Ion beam radiation damage effects in rutile (TiO2)

Cited by 39 publications

References 11 publications

Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO2 single crystal

Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO2 single crystal

Solute redistribution and phase stability at FeCr/TiO2− interfaces under ion irradiation

Rutile (U‐Th)/He Thermochronology: Temperature Sensitivity and Radiation Damage Effects

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Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO₂ single crystal

Effects of intermediate energy heavy‐ion irradiation on the microstructure of rutile TiO₂ single crystal