scholarly journals High Frequency Permeability of Mn-Zn Ferrite and its Composite Materials

1997 ◽  
Vol 07 (C1) ◽  
pp. C1-557-C1-558 ◽  
Author(s):  
T. Tsutaoka ◽  
T. Kasagi ◽  
T. Nakamura ◽  
K. Hatakeyama
Keyword(s):  
Composite Materials ◽  
High Frequency ◽  
Zn Ferrite

VOLUME TEMPERATURE CONTROL AT AUTOMATED HIGH-FREQUENCY PROCESSING OF POLYMER AND COMPOSITE MATERIALS

2020 ◽  
Vol 21 (2) ◽  
pp. 155-162
Author(s):  
V. S. Bychkovsky ◽  
◽  
D. V. Butorin ◽  
D. V. Bakanin ◽  
N. G. Filippenko ◽  
...  
Keyword(s):  
Composite Materials ◽  
Temperature Control ◽  
High Frequency ◽  
Frequency Processing

High frequency applications of PZT/polymer composite materials

1981 ◽  
Vol 39 (1) ◽  
pp. 1245-1248 ◽  
Author(s):  
T. R. Gururaja ◽  
W. A. Schulze ◽  
T. R. Shrout ◽  
A. Safari ◽  
L. Webster ◽  
...  
Keyword(s):  
Composite Materials ◽  
Polymer Composite ◽  
High Frequency ◽  
Polymer Composite Materials

ABS Fabrics Chemically Plated by Cu/Ni-P as Electromagnetic Shielding Material

2011 ◽  
Vol 306-307 ◽  
pp. 385-388
Author(s):  
Cheng Da Yu ◽  
Qi Bin Deng ◽  
Ping Li ◽  
Ming Cun Wang ◽  
Yong Feng Wang
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
High Frequency ◽  
Gradual Increase ◽  
Electromagnetic Shielding ◽  
Shielding Effect ◽  
Ideal Candidate ◽  
Varying Thickness ◽  
Fabric Composite ◽  
Shielding Material

In this paper, a novel composite material of Acrylonitrile-Butadlene-Styrene resin (ABS)-based fabric coated with Cu/Ni-P was prepared via chemical redox plating technique. A series of such composite materials with varying thickness of Cu and Ni-P showed remarkable electromagnetic shielding ability. With the increase of Cu thickness, the shielding effect (SE) increased gradually, but leveled off after 1.5μm at a SE of about 70dB. Similarly, with the increase of the depth of Ni-P coats, the SE showed a trendency of gradual increase, and leveled off after 1.0μm at a SE of about 45dB. The optimum ABS/Cu/Ni-P was Cu 1.5μm and Ni-P 1.0μm unilaterally. The ABS/Cu/Ni-P composite material possessed excellent shielding ability in the range of 0.001-1000MHz at a stable SE of >80dB, and it also possessed ideal shielding effect in the range of >36GHz. But in the range of 10-18GHz, the shielding effect is slightly decreased gradually to about 60dB. So the ABS/Cu/Ni-P fabric composite is an ideal candidate for electromagnetic shielding material at low and high frequency radiations.

A novel transmission-line type high frequency transformer using a fine-grain Mn-Zn ferrite [for ballasts]

1999 ◽  
Vol 35 (5) ◽  
pp. 3538-3540 ◽  
Author(s):  
T. Inoue ◽  
M. Furukawa ◽  
T. Sato ◽  
K. Yamasawa ◽  
T. Takahashi ◽  
...  
Keyword(s):  
Transmission Line ◽  
High Frequency ◽  
Fine Grain ◽  
High Frequency Transformer ◽  
Zn Ferrite ◽  
Line Type

scholarly journals Ni-Cu-Zn Ferrite Research: A Brief Review

2013 ◽  
Vol 5 (2) ◽  
pp. 215-234 ◽  
Author(s):  
M. F. Huq ◽  
D. K. Saha ◽  
R. Ahmed ◽  
Z. H. Mahmood
Keyword(s):  
Rare Earth ◽  
High Frequency ◽  
Sintering Temperature ◽  
Electromagnetic Properties ◽  
Sintering Aids ◽  
Cu Content ◽  
Zn Concentration ◽  
Zn Ferrite ◽  
The Individual ◽  
Better Than

The temperature at which the ferrite is sintered critically depends on the chemical composition. The electromagnetic properties are dependent on the densification and microstructure. Substitutions and addition of sintering aids is an attractive approach to enhance the electromagnetic properties. Various compositions in the system Ni1-x-yCuxZnyFe2O4 were investigated. Cu is used to decrease the sintering temperature. However, Cu decreases the resistivity, which is not desirable for its high frequency applications. So, optimization of Cu content is necessary. Different ranges of electromagnetic properties have been reported with various Zn concentrations. Optimization of Zn concentration with respect to Ni and Cu is essential to achieve desirable electromagnetic properties. Influence of rare earths has also been reported. The investigations showed an improved densification in Ni-Zn and increased permeability in Cu-Zn ferrite by Sm substitution. La substitutions showed an improved resistivity in Ni-Zn ferrites. Similarly, these substitutions may improve the electromagnetic properties in Ni-Cu-Zn ferrites. V2O5, MoO3 and Bi2O3 were reported to be the most widely used sintering additives. Bi2O3-WO3 and V2O5-MoO3 mixed additives were better than the individual additives in Ni-Cu-Zn ferrite, respectively. Further research is needed on the mixed sintering additivesKeywords: Additives; Ferrite preparation; Ni-Cu-Zn ferrite; Rare Earth; Sintering aids.© 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v5i2.12434 J. Sci. Res. 5 (2), 215-233 (2013)

Fine grained Mn–Zn ferrite for high frequency driving

1998 ◽  
Vol 83 (11) ◽  
pp. 6861-6863 ◽  
Author(s):  
K. Takadate ◽  
Y. Yamamoto ◽  
A. Makino ◽  
T. Yamaguchi ◽  
I. Sasada
Keyword(s):  
High Frequency ◽  
Fine Grained ◽  
Zn Ferrite
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