Radiation Damage of LaMgAl11O19 and CeMgAl11O19 Magnetoplumbite. Issue 10 (9th August 2013)

• Record Type: Journal Article
• Authors: Men, Danju; Patel, Maulik K.; Usov, Igor O.; Pivin, J. C.; Porter, John R.; Mecartney, Martha L.; Mitchell, T.
• Is Part Of: Journal of the American Ceramic Society. Volume 96:Issue 10(2013)
• Page Start: 3325
• Page End: 3332
• Publication Date: 2013-08-09
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.12503
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace12503-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Studies of radiation damage in magnetoplumbite‐type LaMgAl₁₁O₁₉ and CeMgAl₁₁O₁₉ are reported. Ion irradiation was conducted on ceramic composites containing a LaMgAl₁₁O₁₉ phase at 500°C with 10 MeV Au⁺ ions and on ceramic composites containing CeMgAl₁₁O₁₉ phase at 800°C with 92 MeV Xe⁺ ions. The radiation response of these similar LnMgAl₁₁O₁₉ (Ln = La and Ce) hexaaluminate magnetoplumbite phases was evaluated using transmission electron microscopy (TEM) and X‐ray diffraction (XRD). LaMgAl₁₁O₁₉ was amorphized by 10 MeV Au ions with swelling of the structure within an approximate 2 μm radiation depth from the irradiation surface. CeMgAl₁₁O₁₉ did not amorphize after 92 MeV Xe‐ion irradiation, but ion track damage contrast is seen in approximately 5 μm of the irradiated depth. SRIM Monte‐Carlo simulations of nuclear displacements correlate with the experimental results.</p> </abstract>