Sažetak sa skupa
Structural, dielectric and magnetic properties of manganese-zinc ferrites
P. M. Nikolić
; Belgrade University, P. Box 816
S. Djurić
; Minning-geology Faculty, Beograd
O. S. Aleksić
; Belgrade University, P. Box 816
V. Blagojević
; Belgrade University, P. Box 816
M. B. Pavlović
; Belgrade University, P. Box 816
J. Pavlović
; EI Feriti, Beograd
Sažetak
Manganese-zinc ferrite (Mn₁₋ₓZnₓFe₂O₄) samples were made using a classical ceramic technology procedure. Appropriate amounts of the compounds were mixed and ground, heated, pressed and sintered. Structural properties were obtained using an X-ray method employing a Phillips diffractometer with graphite monochromator. It was confirmed that the samples were single phased. Magnetic properties were measured and compared with standard Phillips products. Dielectric properties were studied in the infrared and far infrared ranges, on the basis of reflectivity measurements which were numerically analyzed. Three ionic resonances were observed in the range between 800 and 300 cm⁻¹. The values of the dielectric permittivity were calculated and the results obtained were discussed and compared with published data obtained at much lower frequencies for 172 MHz, ε' = 57.2/1.1, and for 4.5 GHz, ε' = 9.3/2/.
Ključne riječi
Hrčak ID:
339000
URI
Datum izdavanja:
20.12.1989.
Posjeta: 173 *