Crystal Structure of Ferroelastic Pb5Al2
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Georges Bravic; RΓ©gnault von der MΓΌhll; Jean Ravez
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Article
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2000
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Elsevier Science
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English
β 275 KB
Five di4erent phases of Pb 5 Al 3 F 19 ([I] to [V]) occur on cooling. The ferroelastic one [III] was stabilized at room temperature by a low rate of Cr+Al substitution. The structure was determined by X-ray di4raction analysis on a single-domain crystal. The symmetry is triclinic, P1 , with cell par