Zobrazeno 1 - 8
of 8
pro vyhledávání: '"K. Th. Fehr"'
Publikováno v:
Journal of Electroceramics. 34:262-274
Electrical properties of rutile-type Fe0.9 W0.1TiMO6 (M = Ta,Nb) ceramics were studied. The results are compared to those observed previously on rutile-type relaxor ferroelectric-like FeTiMO6 and Fe0.9 W0.05TiMO6 (M = Ta,Nb) ceramics. In part high di
Publikováno v:
Journal of Electroceramics. 34:158-166
A variety of electrical quantities of rutile-type Fex/2Ta(Nb)x/2Ti1-xO2 (x = 0.05, 0.1) ceramics were measured between room temperature and ≅ 760 K. One aim was to study the dielectric constant e(ω) (ω is angular frequency = 2πf) and dielectric
Publikováno v:
Journal of Electroceramics. 33:163-171
We determined a series of electrical quantities on rutile-type In 0.025Nb 0.025Ti 0.95O2 (INT005) and Al 0.025Nb 0.025Ti 0.95O2 (ANT005) ceramics in an attempt to analyse in particular the premises for formation of high dielectric constant 𝜖(ω) (
Electrical properties of rutile-type relaxor ferroelectric-like Fe0.9W0.05TiMO6 (M = Ta,Nb) ceramics
Publikováno v:
Journal of Electroceramics. 30:191-205
Electrical properties of rutile-type $\mathrm {Fe}_{0.9}{\kern 1pt} \mathrm {W}_{0.05}\\\mathrm {TiMO}_{6} (\mathrm {M} {} = {} \mathrm {Ta,Nb})$ ceramics were measured at and above room temperature and the results are compared with those gained prev
Publikováno v:
Journal of Electroceramics. 29:240-249
Various electrical properties of polycrystalline rutile-type compounds FeTiTaO6 and FeTiNbO6 were studied between room temperature and ∼750 K. The main purpose of this investigation was to analyse to what degree the giant relaxor-type dielectric co
Autor:
E. L. Listanco, R. S. Punongbayan, V. Hoffmann, R. Keller, Avto Goguitchaichvili, J.C. Tanguy, Michel Prévot, K. Th. Fehr, M. Bina
Publikováno v:
Geophysical Journal International. 138:159-178
39 dacitic pumice and lithic samples from the 1991 eruption of Mount Pinatubo were investigated through both magnetic and mineralogical means. As in a previous study, natural remanent magnetization (NRM) is found to be reversed for most of the sample
Autor:
K. Th. Fehr, V. Hoffmann
Publikováno v:
Geophysical Research Letters. 23:2835-2838
Detailed micromagnetic, rockmagnetic and mineralogical investigations on dacitic pumice from the eruption of Mt. Pinatubo (1991, Phillipines) showing reversed NRM/TRM are presented. Two intergrown hemoilmenite-phases in chemically zoned particles wer
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