Fabrication and frequency response of a complex ultrasonic transducer for multilayer evaluation

Lee, Man−Jong; Kim, Joo Sun; Kim, Soo Ho; Ji, Seung Hyun; Yoon, Young Soo; Lee, Sang-Jin

doi:10.1016/j.sna.2005.08.007

Cited by 2 publications

(2 citation statements)

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“…The shrinkage rate during sintering can be controlled by adjusting the binder content and sintering temperature. 14,15 Our optimum slurry conditions were found to be 50 and 65 wt% of binder content with respect to PZNT and NCZF powders, respectively. The binder burnout and sintering processes were as follows.…”

Section: Resultsmentioning

confidence: 86%

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Cofired Magnetoelectric Laminate Composites

Park

Priya

2010

Journal of the American Ceramic Society

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We report the structural, electrical, and magnetoelectric (ME) properties of cofired ME laminate composites synthesized using tape‐casting approach. Compositions corresponding to 0.2Pb(Zn1/3Nb2/3)–0.8Pb(Zr0.5Ti0.5)O3 [PZNT] and (Ni0.6Cu0.2Zn0.2) Fe2O3 [NCZF] were used as piezoelectric and magnetostrictive phases, respectively. In order to reduce the sintering temperature of the ferrite layer, NZF was modified with Cu and thereafter the laminate composite was successfully sintered at 930°C. The interface between PZNT and NCZF was found to exhibit strong bonding with no structural defects, which was correlated with cross diffusion of ions. The laminate composite was found to exhibit the ME coefficient of 82 mV·(cm·Oe)−1 at Hdc=67 Oe and was able to detect a small DC magnetic field of 1 μT under Hac=1 Oe at 1 kHz. This sensitivity was attributed to the effectiveness of elastic coupling in the laminate structure. Fabrication of cofired laminate composites with high magnetic field sensitivity will lead to their wide‐scale application.

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Section: Resultsmentioning

confidence: 86%

“…Fig. 14,15 Our optimum slurry conditions were found to be 50 and 65 wt% of binder content with respect to PZNT and NCZF powders, respectively. 1(b).…”

Section: Methodsmentioning

confidence: 80%