Orthorhombic ε-phases and transitional structures in Al—Pd—(Fe)
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Sergiy Balanetskyy
Abstract
The results of an investigation of the structures formed in the range of about Al73Pd27 to Al76Pd14Fe10 by electron diffraction and high-resolution transmission microscopy are reported. The orthorhombic ε6, ε16, ε22 and ε28 phases were observed in specific compositional sub-ranges. Their lattice parameters a ≈ 2.34 and b ≈ 1.62 nm are essentially the same while the c parameters are ≈1.23, 3.24, 4.49 and 5.70 nm, respectively. Apart from these regular structures, also structures aperiodic along the c-direction are revealed at intermediate compositions. Thus, inside the wide ε-phase range only slight continuous variations of the orthorhombic a and b cell parameters are accompanied by complicated modulations of the c cell parameter.
© 2004 Oldenbourg Wissenschaftsverlag GmbH
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Articles in the same Issue
- Description of X-ray powder pattern of turbostratically disordered layer structures with a Rietveld compatible approach
- Crystal structures and their enumeration via quotient graphs
- On the crystal parameters of some representatives of the NiAs family containing platinum group metals and gold
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- Structure and characterization of methyl (±)-1-(2-aminophenyl)-2-hydroxy-4-(4-methoxybenzoyl)-5-(4-methoxyphenyl)-3-oxo-2,3-dihydro-1H-pyrrole-2-acetate
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- Study on β-sheet packing, stabilized by aromatic interactions in a tri-peptide crystal
- High-pressure in-situ crystallization, structure and phase transitions in 1,2-dichloroethane
- Low-temperature crystal structure of RS-thiocamphor
