INTERNAL FRICTION AND ELASTIC CONSTANTS OF Pd-B-H ALLOYS

Abstract

Abstract: Internal friction measurements on binary and ternary α-phase alloys of Pd with hydrogen and boron have been performed with a torsion pendulum and by observing the cttenuation of ultrasonic pulses. A pronounced damping maximum of binary Pd-B alloys at 220K and measuring frequencies of about 4Hz could not be established at a frequency of 15MH. Ternary Pd-B-H alloys show an additional damping maximum besides the hydrogen Zener effect, which is interpreted in terms of a changed jump frequency of hydrogen in the neighborhood of boron atoms.

Key words: Pd-B-H alioy, internal friction, elastic constant, Zener effect

Y.L. Chen(Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China). INTERNAL FRICTION AND ELASTIC CONSTANTS OF Pd-B-H ALLOYS[J]. Acta Metallurgica Sinica (English Letters), 1998, 11(1): 51-55.

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INTERNAL FRICTION AND ELASTIC CONSTANTS OF Pd-B-H ALLOYS

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