Magnetic Properties of Magnetoplumbite Type Ferrites Crystal-Oriented by Hot-Forging in Air.

Kimura, Osamu; Murakami, Yoshitaka; Motsumoto, Masafumi; Sakakura, Mitsuo; Kakio, Shoji

doi:10.2497/jjspm.49.114

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“…3) In our other previous studies, LiBiO 2 was adopted as a sintering additive since the low-temperature sintering of Z-type ferrites could be attained with the aid of the additive. 8,9) As a result, a chip inductor with Ag internal electrodes having a high impedance in the GHz region was obtained. Accordingly, LiBiO 2 was added to the unground PZT powder as a sintering additive before grinding to lower Fig.…”

Section: Powder Preparationmentioning

confidence: 98%

High-Curie-Temperature Pb(Zr,Ti)O₃ Ceramic Actuator Cofired with Pure Silver Internal Electrodes

Ochiai¹,

Hayano

Kakio

et al. 2008

jjap

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High-Curie temperature (Tc > 350 °C) lead zirconium titanate (PZT) ceramics cofired with low-cost pure silver (Ag) have been investigated for the manufacture of actuators for high-temperature applications. One percent of a low-firing additive, LiBiO2, was added to the conventionally calcined Pb (Zr0.52Ti0.48)O3 (PZT 52/48) powder and ground to 0.2 µm in average particle size, using yttrium toughened zirconia (YTZ) balls. PZT 52/48 ceramics fired at 850 °C showed a density = 7.9 g/cm3, an electromechanical coupling factor planar mode kp = 0.60, a piezoelectric constant d33 = 500 pm/V and a high Tc = 370 °C. PZT green sheets of 60 µm thickness with Ag metal paste were laminated and cofired at 850 °C. PZT ceramics cofired with Ag exhibited displacement corresponding to d33 = 363 pm/V; no Ag dispersion into PZT ceramics was detected. These results imply that the high-Tc cofired PZT ceramics with pure Ag internal electrodes are feasible for actuators in high-temperature applications.

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Section: Powder Preparationmentioning

confidence: 98%

High-Curie-Temperature Pb(Zr,Ti)O₃ Ceramic Actuator Cofired with Pure Silver Internal Electrodes

Ochiai¹,

Hayano

Kakio

et al. 2008

jjap

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Magnetic Properties of Magnetoplumbite Type Ferrites Crystal-Oriented by Hot-Forging in Air.

Cited by 1 publication

References 0 publications

High-Curie-Temperature Pb(Zr,Ti)O₃ Ceramic Actuator Cofired with Pure Silver Internal Electrodes

High-Curie-Temperature Pb(Zr,Ti)O₃ Ceramic Actuator Cofired with Pure Silver Internal Electrodes

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Magnetic Properties of Magnetoplumbite Type Ferrites Crystal-Oriented by Hot-Forging in Air.

Cited by 1 publication

References 0 publications

High-Curie-Temperature Pb(Zr,Ti)O3 Ceramic Actuator Cofired with Pure Silver Internal Electrodes

High-Curie-Temperature Pb(Zr,Ti)O3 Ceramic Actuator Cofired with Pure Silver Internal Electrodes

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Product

Resources

About

High-Curie-Temperature Pb(Zr,Ti)O₃ Ceramic Actuator Cofired with Pure Silver Internal Electrodes

High-Curie-Temperature Pb(Zr,Ti)O₃ Ceramic Actuator Cofired with Pure Silver Internal Electrodes