The amorphization of complex silicates by ion-beam irradiation

Journal Article · Sun Nov 01 04:00:00 EST 1992 · Journal of Materials Research; (United States)

DOI:https://doi.org/10.1557/JMR.1992.3080· OSTI ID:6958147

Eby, R K; Ewing, R C ^[1]; Birtcher, R C ^[2]

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1. Department of Geology, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
2. MSD 212, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)

Twenty-five silicates were irradiated at ambient temperature conditions with 1.5 MeV Kr[sup +]. Critical doses of amorphization were monitored [ital in] [ital situ] with transmission electron microscopy. The doses required for amorphization are compared with the structures, bond-types, compositions, and physical properties of the silicates using simple correlation methods and more complex multivariate statistical analysis. These analyses were made in order to determine which properties most affect the critical amorphization dose. Simple two-variable correlations indicate that melting point, efficiency of atomic packing, the dimensionality of SiO[sub 4] polymerization (DOSP), and bond ionicity have a relationship with critical amorphization dose. However, these relationships are evident only in selected portions of the data set; that is, for silicate phases with a common structure type.

• DOE Contract Number: FG04-84ER45099
• OSTI ID: 6958147
• Journal Information: Journal of Materials Research; (United States), Journal Name: Journal of Materials Research; (United States) Vol. 7:11; ISSN JMREEE; ISSN 0884-2914
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHARGED PARTICLES
CHEMICAL BONDS
COLLISIONS
ELASTICITY
ELECTRON MICROSCOPY
ENERGY RANGE
ION COLLISIONS
IONS
IRRADIATION
KRYPTON IONS
MATHEMATICAL MODELS
MATHEMATICS
MECHANICAL PROPERTIES
MEV RANGE
MEV RANGE 01-10
MICROSCOPY
MULTIVARIATE ANALYSIS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
REGRESSION ANALYSIS
SILICATES
SILICON COMPOUNDS
STATISTICAL MODELS
STATISTICS
TENSILE PROPERTIES
TRANSMISSION ELECTRON MICROSCOPY