Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Sei Joo Jang"'
Autor:
Sei-Joo Jang, Veeraraghavan Sundar, Sylvie M.-L. Eury, Robert E. Newnham, Paul Moses, Rattikorn Yimnirun
Publikováno v:
Materials Chemistry and Physics. 61:18-23
The evaluation of electrostrictive properties of low permittivity dielectrics requires extremely sensitive instrumentation. In the present work, a modified compressometer capable of resolving fractional changes in capacitance of the order of 10 −6
Autor:
Sei-Joo Jang, Rattikorn Yimnirun, Veeraraghavan Sundar, Robert E. Newnham, Sylvie M.-L. Eury, Paul Moses
Publikováno v:
Journal of the European Ceramic Society. 19:1269-1273
To measure the electrostrictive effects in low permittivity materials, extremely sensitive instrumentation is required. A modified compressometer for resolving fractional changes in capacitance on the order of 10−6 is used in this work, along with
Publikováno v:
Journal of Applied Physics. 83:3288-3297
The use of ferroelectric ceramics and thin films in microwave devices requires that they possess frequency-stable, low-loss dielectric properties. At microwave frequencies, ferroelectric polycrystalline ceramic materials typically exhibit a large die
Publikováno v:
Ferroelectrics. 211:153-164
Dielectric measurements on BaTiO3 ceramics and BaTiO3 powder-polypropylene composites were carried out in the microwave frequency range. Lumped impedance, cavity perturbation, and post resonance techniques were employed through 5GHz. Ceramic BaTiO3 e
Autor:
L. E. Cross, Sei-Joo Jang, A. Dabkowski, Amar S. Bhalla, H. A. Dabkowska, F.W. Ainger, M. McNeal, S. Erdei
Publikováno v:
Journal of Crystal Growth. 174:324-327
Cavity perturbation (CP) and Hakki-Coleman post-resonance (PR) methods were used for measuring the dielectric constant (e′) and the tangent loss (tan δ) on single-crystal LaSrGaO 4 . These values, especially tan δ, are different from the earlier
Publikováno v:
Ferroelectrics. 173:53-67
Composites with 0–3 connectivity comprised of ceramic powders in a polymer matrix were evaluated for their dielectric properties in the X-band (8–12 GHz) frequency regime with the emphasis on 10 GHz. Ferroic ceramic, ferroelectric Pb(Mg1/3Nb2/3)O
Publikováno v:
Journal of the American Ceramic Society. 77:2485-2488
The effects of glass additions on the properties of (Zr,Sn)TiO4 as a microwave dielectric material were investigated. The (Zr,Sn)TiO4 ceramics with no glass addition sintered at 1360°C gave Q= 4900 and K= 37 at 7.9 GHz. Several glasses, including Si
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 42:1176-1182
The transmission characteristics of multilayer ferrite-high-K microstrip lines have been calculated by means of the parallel-plate waveguide approximation. The relaxation behavior of the dielectric permittivity and permeability have been taken into a
Publikováno v:
Journal of the American Ceramic Society. 77:1909-1916
The effect of glass addition on the properties of BaO–TiO2-WO3 microwave dielectric material N-35, which has Q= 5900 and K= 35 at 7.2 GHz for samples sintered at 1360°C, was investigated. Several glasses including B2O3, SiO2, 5ZnO–2B2O3, and nin
Publikováno v:
Ferroelectrics Letters Section. 16:21-32
In this work, a modified lumped parameter method has been discussed which, we believe, is especially suitable for microwave measurements of dielectric dispersion in high dielectric materials in a particular frequency region. The method combines some