The amplitude-independent mechanical quality factor Q of grade 1 commercially pure polycrystalline titanium has been measured in the temperature range from 50 mK to 300 K. Data were obtained from a torsional mode of a mechanical resonator at about 1 kHz. Maximum Qs of 2ยฑ3 million were observed below
โฆ LIBER โฆ
Acoustic quality factor of polycrystalline molybdenum from 50 mK to 300 K
โ Scribed by William Duffy Jr.
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 193 KB
- Volume
- 169
- Category
- Article
- ISSN
- 0921-4526
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The amplitude-independent quality factors (Qs) of polycrystalline aluminium of 99.999 wt% purity, and the commercial aluminium alloys 2024, 6061 and 7075 have been measured in the temperature range 50 mK-300 K. Data were obtained at about 1 kHz from a torsional mode of machined monolithic mechanical