Zobrazeno 1 - 10
of 118
pro vyhledávání: '"K.-P. Bohn"'
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 27:394-402
The wear and fracture mechanisms of PCD cutters active during the core drilling of reinforced concrete have been documented. All have analogies with well known mechanisms from rotary and rotary-percussive rock drilling and also metal cutting (machini
Publikováno v:
The European Physical Journal B. 13:643-651
High performance Brillouin spectroscopy (BS) has been used to study the elastic properties (static and dynamic) of the orientational glassy state of Na(CN)xCl1-x samples \(\)). The temperature behaviour of the elastic properties reveals a more comple
Publikováno v:
Phase Transitions. 65:279-289
High-resolution Brillouin spectroscopy has been used as a crucial experimental technique to investigate the nature of the thermal glass transition in an epoxy. In order to study the coupling between the α-relaxation process and the thermal glass tra
Publikováno v:
Thermochimica Acta. :283-290
Modulated DSC was used to investigate the specific heat around ferroelectric phase transitions. This method has been extended to investigations of slow relaxations within the time domain. For this purpose a suitable cooling assembly is proposed worki
Publikováno v:
Physical Review B. 56:8683-8690
Autor:
C. Schorr, C. Grammes, Jörg Baller, R. Jiménez, Jürgen Schreiber, C. Fischer, Jan-Kristian Krüger, D. Rogez, K.-P. Bohn, Patrick Alnot
Publikováno v:
Physical Review E. 51:2115-2128
Within this work we present Brillouin and ultrasonic investigations performed on the liquid crystals p-methoxybenzylidene p-(n-butylaniline) (MBBA), p-azoxyanisol (PAA), 4-cyano-4-n-alkylbiphenyles (nCB), and 4-n-pentoxybenzylidene-4'-n-octoaniline (
Autor:
Jan-Kristian Krüger, K.-P. Bohn, R. Jiménez, Patrick Alnot, J. Holakovský, C. Fischer, V. Dvorák
Publikováno v:
Physical Review B. 51:3353-3361
The rotator phase of ${\mathrm{C}}_{24}$${\mathrm{F}}_{50}$ has been characterized in its calorimetric as well as in its elastic properties. To perform the elastic characterization we took advantage of a polytetrafluoroethylene-induced-alignment crys
Autor:
Jürgen Schreiber, K.-P. Bohn, Patrick Alnot, B. Servet, C. Fischer, D. Wolf, J. F. Legrand, Jan-Kristian Krüger, R. Jiménez, U. Vogt
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 33:237-246
The room temperature phase of the physical/chemical vapor-deposited statistical co-oligomer VDF/TrFE(70/30) has been characterized by different experimental methods such as small-angle x-ray scattering, wide-angle x-ray diffraction, size-exclusion ch
Autor:
Jan Petzelt, J Hrabovska-Bradshaw, K.-P. Bohn, M Kubat, F Smutny, J. F. Legrand, Jan-Kristian Krüger, Jürgen Schreiber, S. Kamba, R. Jiménez
Publikováno v:
Journal of Physics: Condensed Matter. 6:6947-6964
Frozen-in trans and gauche conformational disorder of symmetrical difluorotetra-chloroethane (DFTCE) produces the tendency of this plastic crystal to form an orientational glassy state on cooling below Tg=86 K. To throw light upon the freezing mechan
Autor:
H. E. Müser, K.-P. Bohn, J. Petersson, R. Jiménez, E. Sauerland, J. Albers, A. Klöpperpieper, Jan-Kristian Krüger
Publikováno v:
Physical Review B. 42:8537-8547
The elastic and opto-acoustic properties of sodium cyanide crystals NaCN and sodium cyanide--sodium chloride mixed crystals Na(CN${)}_{\mathit{x}}$${\mathrm{Cl}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$ (1\ensuremath{\ge}x\ensuremath{\ge}0.63) were inve