Ultrasonic Characterization of Bi2(Te_1-x Se_x)_3 System

• Autorzy: Gaafar M. El-Sayed , Soliman L. I. , Marzouk S. Y.
• Języki publikacji: EN

Abstrakty

EN

Longitudinal and shear ultrasonic wave velocities were measured in the ternary compounds Bi2(Te_1-x Se_x)_3 (0 ≤x ≤1), using pulse echo technique. Measurements were carried out at 4 MHz frequency and at room temperature. Elastic moduli and acoustic impedance have been calculated. The results indicate that these parameters are influenced by the increased addition of selenium from x = 0 to 1.

Słowa kluczowe

EN

polycrystalline materials; Bi-Te-Se systems; ultrasonic wave velocity; elastic properties

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2009
• Tom: Vol. 34, No. 4
• Strony: 715--725
• Opis fizyczny: Bibliogr. 34 poz., tab., wykr.

Twórcy

autor

Gaafar M. El-Sayed

autor

Soliman L. I.

autor

Marzouk S. Y.

• )Ultrasonic Laboratory, National Institute for Standards Tersa Str., P.O. Box 136, El-Haram, El-Giza 12211, Egypt,

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