Microstructure of Swift Heavy Ion Irradiated MgAl(Sub 2)O(Sub 4) Spinel [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 6 pages : digital, PDF file
- Additional Creators
- Oak Ridge National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Plan view and cross-section transmission electron microscopy was used to investigate the microstructure of magnesium aluminate spinel (MgAl₂O₄) following room temperature irradiation with either 430 MeV Kr, 614 MeV Xe, or 72 MeV I ions. The fluences ranged from 1 x 10¹⁶/m² (single track regime) to 1 x 10²°/m². Destruction of the ordered spinel crystal structure on both the anion and cation sublattices was observed in the ion tracks at low fluences. At intermediate fluences, the overlapping ion tracks induced the formation of a new metastable crystalline phase. Amorphization with a volumetric expansion of ∼35% was observed in spinel irradiated with swift heavy ions (electronic stopping powers >7 keV/nm) at fluences above 1 x 10¹⁹/m². These results demonstrate that swift heavy ion radiation can induce microstructural changes not achievable with conventional elastic collision irradiation at comparable temperatures.
- Report Numbers
- E 1.99:ornl/cp-101224
E 1.99: at 60 20 00 0
at 60 20 00 0
ornl/cp-101224 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
11/30/1998.
"ornl/cp-101224"
" at 60 20 00 0"
"AT 60 20 00 0"
Fall Meeting of the Materials Research Society, Boston, MA (US), 11/30/1998--12/04/1998.
Matzke, H.; Zinkle, S.J.; Skuratov, V.A. - Funding Information
- AC05-96OR22464
View MARC record | catkey: 14449880