TY - JOUR
T1 - On the level of mechanical loss in metallic glasses
AU - Bedorf, D.
AU - Richert, Ranko
AU - Samwer, K.
PY - 2011/4/1
Y1 - 2011/4/1
N2 - Metallic glass samples with compositions Zr 65Al 7.5Cu 27.5 and Pd 77Cu 6Si 17, for which loss factors of up to 10 -2 have been reported, are reinvestigated with an electrostatic vibrating cantilever technique that detects dissipation factors tan δ as low as 10 -4. It is found that tan δ ≈ 4×10 -4 is a typical value for these alloys well below T g, suggesting that previous results were limited by instrumental resolution. While aging the glasses increases their elastic moduli considerably, the measured loss factor is affected only marginally by thermal history.
AB - Metallic glass samples with compositions Zr 65Al 7.5Cu 27.5 and Pd 77Cu 6Si 17, for which loss factors of up to 10 -2 have been reported, are reinvestigated with an electrostatic vibrating cantilever technique that detects dissipation factors tan δ as low as 10 -4. It is found that tan δ ≈ 4×10 -4 is a typical value for these alloys well below T g, suggesting that previous results were limited by instrumental resolution. While aging the glasses increases their elastic moduli considerably, the measured loss factor is affected only marginally by thermal history.
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U2 - 10.1140/epjb/e2011-10812-0
DO - 10.1140/epjb/e2011-10812-0
M3 - Article
AN - SCOPUS:79955797261
VL - 80
SP - 325
EP - 329
JO - Zeitschrift für Physik B Condensed Matter and Quanta
JF - Zeitschrift für Physik B Condensed Matter and Quanta
SN - 0340-224X
IS - 3
ER -