In situ beam analysis of radiation damage kinetics in MgTiO{sub 3} single crystals at 170-470 K

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Radiation damage kinetics in synthetic MgTiO{sub 3} (geikielite) single crystals have been studied using the in situ ion beam facility at Los Alamos National Laboratory. The geikielite samples were irradiated at temperatures of 170, 300, and 470 K with 400 keV xenon ions and the radiation damage was sequentially measured with Rutherford backscattering using a 2 MeV He ion beam along a channeling direction. Threshold doses of I and 5x l0{sup 15} Xe/cm{sup 2} were determined for the crystalline-to-amorphous transformation induced by Xe ion irradiation at 170 and 300 K, respectively. However, geikielite retained its crystallinity up to a dose ... continued below

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10 p.

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Yu, Ning; Mitchell, J.N.; Sickafus, K.E. & Nastasi, M. December 31, 1995.

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Radiation damage kinetics in synthetic MgTiO{sub 3} (geikielite) single crystals have been studied using the in situ ion beam facility at Los Alamos National Laboratory. The geikielite samples were irradiated at temperatures of 170, 300, and 470 K with 400 keV xenon ions and the radiation damage was sequentially measured with Rutherford backscattering using a 2 MeV He ion beam along a channeling direction. Threshold doses of I and 5x l0{sup 15} Xe/cm{sup 2} were determined for the crystalline-to-amorphous transformation induced by Xe ion irradiation at 170 and 300 K, respectively. However, geikielite retained its crystallinity up to a dose of 2.5xl0{sup 16}Xe/cm{sup 2} at the irradiation temperature of 470 K. This study has shown that MgTiO{sub 3}, which has a corundum derivative structure, is another radiation resistant material that has the potential for use in radiation environments.

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10 p.

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INIS; OSTI as DE96006056

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  • Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 27 Nov - 1 Dec 1995

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  • Other: DE96006056
  • Report No.: LA-UR--95-4364
  • Report No.: CONF-951155--35
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 196499
  • Archival Resource Key: ark:/67531/metadc669498

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Feb. 29, 2016, 3:28 p.m.

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Yu, Ning; Mitchell, J.N.; Sickafus, K.E. & Nastasi, M. In situ beam analysis of radiation damage kinetics in MgTiO{sub 3} single crystals at 170-470 K, article, December 31, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc669498/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.