Magnetic properties and sintering characteristics of NiZn(Ag, Cu) ferrite for LTCC applications

Enhanced Permeability and Dielectric Constant of NiZn Ferrite Synthesized in Nanocrystalline Form by a Combustion Method

“…Among the six sintered samples QN5 has lower resistivity than all the others. This can be explained in terms of the high conductivity of Ag in the grain boundary region 19 . On the other hand QN3 and QN6 show the highest resistivities.…”

“…This can be explained in terms of the high conductivity of Ag in the grain boundary region. 19 On the other hand QN3 and QN6 show the highest resistivities. This is due to the insulating Bi 2 O 3 in the grain boundary.…”

“…However, nanosized ferrite particles have more sinterability due to their fine particle nature as well as the high surface to volume ratio. 3,[16][17][18][19] Recently, Verma and Dube 8 showed that NiZn ferrite synthesized by a citrate method and sintered at 12001C is suitable for high-frequency applications. Similarly, Hu et al 9 showed that milled NiZn ferrite sintered with CuO and V 2 O 5 , below 10001C, shows very large initial permeability at low frequencies, due to the formation of Ni-ZnCu ferrite.…”

“…As a result, it is very difficult to obtain a sintered body with higher density comparable to the theoretical values, when the material is synthesized by the solid state method. However, nanosized ferrite particles have more sinterability due to their fine particle nature as well as the high surface to volume ratio 3,16–19 . Recently, Verma and Dube 8 showed that NiZn ferrite synthesized by a citrate method and sintered at 1200°C is suitable for high‐frequency applications.…”

Influences of Fe-deficiency on electromagnetic properties of low-temperature-fired NiCuZn ferrites

“…NiCuZn ferrites have been widely used in multilayer chip inductors and correlative inductive devices due to their lowsintering temperature and excellent magnetic properties [1][2][3][4][5][6][7]. The properties of the ferrites are strongly dependent on the composition and microstructure.…”