Effects of microwave heating on dielectric and piezoelectric properties of PZT ceramic tapes

Chen, Yun-Tien; Sheu, Ching-Iuan; Lin, Sheng-Di; Cheng, Syh-Yuh

doi:10.1016/j.ceramint.2006.12.009

Cited by 19 publications

(11 citation statements)

References 8 publications

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“…These characteristics are very important since the dielectric constant of PZT is strongly dependent on shrinkage and densification [27]. Nevertheless, the weight loss of the composition observed was smaller than 1% for all samples but, interestingly, only the MBP sample showed densities higher than 99% whereas the samples PZT80 and PZT20 showed high porosity.…”

Section: Samplementioning

confidence: 90%

“…In a previous study about Pb(Zr 0.5 Ti 0.5 )O 3 prepared by the OPM route [26], it was demonstrated that samples sintered by conventional route resulted in dense ceramics with dielectric properties consistent with the values reported for powders synthesized by different methods. According to the literature, on the other hand, it is expected that microwave sintering should enhance the densification of ceramics as compared to conventional method [16,27]. However, there is a lack of knowledge about the use of different techniques for sintering OPM powders.…”

Section: Ceramic Characterizationmentioning

confidence: 99%

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Dielectric characterization of microwave sintered lead zirconate titanate ceramics

Gonçalves

Souza

Longo

et al. 2016

Ceramics International

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Highly reactive lead zirconate titanate powders (PZT) with different compositions were successfully synthesized by the oxidant-peroxo method (OPM) and used to prepare dense ceramic samples with composition near to the morphotropic phase boundary (MPB) sintered at 1000°C for 2 h using a tubular conventional oven and a commercial microwave system. Crystalline phases were identified in the powder and ceramic samples by X-ray powder diffraction and FT-Raman spectroscopy at room temperature. The fractured surface of the ceramic sample showed a high degree of densification with fairly uniform grain sizes. Dielectric constants measured in the range from 30 to 500°C at different frequencies (1, 10 and 100 kHz) indicated a normal ferroelectric behavior regardless of the sintering method. Samples sintered by a microwave radiation (MW) method and composition near to the MPB region showed a maximum dielectric constant of 17.911 and an anomalous high Curie temperature of 465°C.

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Section: Samplementioning

confidence: 90%

Section: Ceramic Characterizationmentioning

confidence: 99%

Dielectric characterization of microwave sintered lead zirconate titanate ceramics

Gonçalves

Souza

Longo

et al. 2016

Ceramics International

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“…Zinc oxide thick film HCHO sensors, prepared from microwave-processed samples have exhibited good response of 7.4 to the presence of 0.001ppm of HCHO at 210 °C [39]. Microwave heating of PZT ceramic tapes [40] was performed in a single mode microwave furnace using SiC plate as a susceptor. Besides greater shrinkage and rapid densification improved dielectric and piezoelectric properties (higher dielectric constant and lower dielectric loss, much higher Kp and lower resonance resistance) were recorded for the tapes.…”

Section: Thin Films Thick Films and Tapesmentioning

confidence: 99%

Microwave processing - A new dimension in synthesis of materials

Kashyap

2009

2009 Applied Electromagnetics Conference (AEMC)

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Microwave processing has revolutionised the synthesis of all kinds of materials including insulators, semiconductors metals and alloys. The technique can either be employed in a mixed mode, separated E-or H-mode or in a combination with other preparation techniques. In no time and at much lower temperatures and power levels, it can even result in new crystalline, nanocrystalline and amorphous phases and even new compounds. Microwave processing is an emerging, economic and green technique having great potential, and has opened new vistas of materials research.

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“…In addition to searching for new types of multiferroic materials, an intensive search for effective technological methods for their production (synthesis and sintering) to meet these unique requirements has been underway [ 1 , 4 ]. Numerous synthesis methods of ceramic materials are known, e.g., solid-state reaction technique [ 5 , 6 , 7 , 8 ], calcination [ 9 , 10 , 11 , 12 , 13 ], sol-gel [ 14 , 15 ], gel-combustion [ 16 ], mechanochemical activation [ 17 , 18 , 19 , 20 ], and the self-developing synthesis of SHS [ 21 , 22 ], as well as sintering methods, e.g., free sintering (pressureless sintering) [ 23 ], hot pressing [ 24 , 25 , 26 ], microwave sintering [ 23 , 27 , 28 ], spark plasma sintering SPS [ 29 , 30 , 31 , 32 ], and cold-sintering-assisted sintering CSS [ 33 , 34 ]. Well-known methods of synthesis and sintering are used to improve the functional properties of multiferroic materials, which are appropriately modified and combined in the technological process.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Sintering Method on the Properties of a Multiferroic Ceramic Composite Based on PZT-Type Ferroelectric Material and Ni-Zn Ferrite

2022

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This paper presents the research results of multiferroic ceramic composites obtained with three sintering methods, i.e., free sintering FS (pressureless), hot pressing HP, and spark plasma sintering SPS. The multiferroic composite was obtained by combining a ferroelectric material of the PZT-type (90%) and zinc-nickel ferrite (10%). Research has shown that the combination of a magnetic material and ferroelectric materials maintains the multiferroic good ferroelectric and magnetic properties of the composites for all sintering methods. A sample sintered with the HP hot pressing method exhibits the best parameters. In the HP method, the composite sample has high permittivity, equal to 910 (at room temperature) and 7850 (at the phase transition temperature), residual polarization 2.80 µC/cm2, a coercive field of 0.95 kV/mm, and the magnetization of 5.3 and 4.95 Am2/kg at −268 °C and RT, respectively. Optimal technological process conditions are ensured by the HP method, improving the sinterability of the ceramic sinter which obtains high density and proper material compaction. In the case of the SPS method, the sintering conditions do not allow for homogeneous growth of the ferroelectric and magnetic component grains, increasing the formation of internal pores. On the other hand, in the FS method, high temperatures favor excessive grain growth and an increase in the heterogeneity of their size. In obtaining optimal performance parameters of multiferroic composites and maintaining their stability, hot pressing is the most effective of the presented sintering methods.

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Effects of microwave heating on dielectric and piezoelectric properties of PZT ceramic tapes

Cited by 19 publications

References 8 publications

Dielectric characterization of microwave sintered lead zirconate titanate ceramics

Dielectric characterization of microwave sintered lead zirconate titanate ceramics

Microwave processing - A new dimension in synthesis of materials

Influence of the Sintering Method on the Properties of a Multiferroic Ceramic Composite Based on PZT-Type Ferroelectric Material and Ni-Zn Ferrite

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