$Strain energy density in the x-ray powder diffraction from mixed crystals and alloys$

Strain energy density in the x-ray powder diffraction from mixed crystals and alloys

A correlation between precise x-ray powder diffraction patterns and atomic size mismatch in disordered mixed crystals (alloys and ionic crystals) is observed. The anisotropy of the elastic moduli has been taken into account for evaluation of the strain energy density of the mixed crystals revealed i...

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Veröffentlicht in:	Journal of physics. Condensed matter 2000-09, Vol.12 (37), p.8081-8088
Hauptverfasser:	Rosenberg, Yu, Machavariani, V Sh, Voronel, A, Garber, S, Rubshtein, A, Frenkel, A I, Stern, E A
Format:	Artikel
Sprache:	eng
Schlagworte:	Amorphous semiconductors, metals, and alloys Applied sciences Condensed matter: structure, mechanical and thermal properties Disordered solids Exact sciences and technology Metals. Metallurgy Other amorphous solids Physics Structure of solids and liquids crystallography
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Beschreibung
Zusammenfassung:	A correlation between precise x-ray powder diffraction patterns and atomic size mismatch in disordered mixed crystals (alloys and ionic crystals) is observed. The anisotropy of the elastic moduli has been taken into account for evaluation of the strain energy density of the mixed crystals revealed in x-ray powder diffraction measurements. The precursor of the phase transformation for a quenched disordered Au-Cu alloy is identified. Au-Ag alloys are also discussed.
ISSN:	0953-8984 1361-648X
DOI:	10.1088/0953-8984/12/37/307