Structure of amorphous Al sub 2 O sub 3 produced by ion implantation

Conference · Sat Dec 31 23:00:00 EST 1988

OSTI ID:5420617

McHargue, C J; Sklad, P S; Angelini, P; White, C W; McCallum, J C; Perez, A; Marest, G ^[1]

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1. Oak Ridge National Lab., TN (USA)

The amorphous state can be produced in {alpha}-Al{sub 2}O{sub 3} by ion beam induced displacements at 77 K or by displacements combined with chemical effects at room temperature. Progress toward understanding the amorphization process has been made from studies of the short-range order, electronic charge on implanted species, and the critical composition for amorphization. Results are presented for implantation of Al + O in the stoichiometric ratio, zirconium, iron, and tin. 10 refs., 6 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5420617
• Report Number(s): CONF-891119-6; ON: DE90003065
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
656003 -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMORPHOUS STATE
BEAMS
CHALCOGENIDES
CRYSTAL STRUCTURE
ELEMENTS
ION BEAMS
ION IMPLANTATION
IRON
METALS
MOESSBAUER EFFECT
OXIDES
OXYGEN COMPOUNDS
TIN
TRANSITION ELEMENTS
ZIRCONIUM