Internal friction in amorphous polystyrene at low temperature and high frequency
نویسندگان
چکیده
منابع مشابه
High Temperature Internal Friction in NiAl Single Crystals
The internal friction of high-purity NiAl single crystals was investigated utilizing a low-frequency subresonance torsion a p m . Above lOOOK the damping increases strongly up to Q-' =0.3 at 1400K. The activation enthalpy of this viscoelastic relaxation depends on the composition and shows the highest value (2.8eV) for stoichiometric NiAl. The results are discussed in terms of diffusionantrolle...
متن کاملLow temperature internal friction of diamond-like carbon films
We have studied the internal friction of amorphous diamond-like carbon films prepared by pulsed-laser deposition from 0.4 to 300K. The low temperature internal friction below 10K is dominated by the atomic tunnelling states for amorphous solids, which is a measure of structure disorder. We have tried to vary the content of sp carbon atoms versus sp ones by changing laser fleunce, by doping with...
متن کاملInternal Friction Associated with High-temperature Dislocation Mobility
I n t e r n a l f r i c t i o n associated w i t h d i s l o c a t i o n mobil i t y can be c las s i f i e d i n t o th ree catagor ies: (1) Those o r i g i n a t e d from t h e i n t r i n s i c p roper t ies o f s i n g l e d is loca t ions ; (2 ) those o r i g i n a t e d from the i n t e r a c t i o n between d is. l o c a t i o n s and p o i n t defects; (3 ) those o r i g i n a t e d fro...
متن کاملLow-temperature growth of low friction wear- resistant amorphous carbon nitride thin films by mid-frequency, high power impulse, and direct current magnetron sputtering
Konstantinos D. Bakoglidis, Susann Schmidt, Magnus Garbrecht, Ivan G. Ivanov, Jens Jensen, Grzegorz Greczynski and Lars Hultman, Low-temperature growth of low friction wear-resistant amorphous carbon nitride thin films by mid-frequency, high power impulse, and direct current magnetron sputtering, Journal of Vacuum Science & Technology. A, 2015, 33(5), 05E112 . http://dx.doi.org/10.1116/1.492327...
متن کاملA LOW TEMPERATURE COLD WORK INTERNAL-FRICTION PEAK IN A1-0.5 Wt
I . E x p e r i m e n t . I n t e r n a l f r i c t i o n m e a s u r e m e n t s w e r e made w i t h a n i n v e r t e d pendulum by f r e e d e c a y method . I n s i t u t e n s i l e d e f o r m a t i o n was c a r r i e d o u t by an e l e c t r o m a g n e t i c s e t up a n d t h e t e n s i l e f o r c e a p p l i e d t o t h e s p e c i m e n c a n b e r e g u l a t e d c o n t i n u ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal de Physique Lettres
سال: 1981
ISSN: 0302-072X
DOI: 10.1051/jphyslet:019810042022049100