Microwave-assisted synthesis and sintering of potassium sodium niobate lead-free piezoelectric ceramics

Feizpour, Mahdi; Bafrooei, Hadi Barzegar; Hayati, Roghayeh; Ebadzadeh, Touradj

doi:10.1016/j.ceramint.2013.06.081

Cited by 70 publications

(33 citation statements)

References 38 publications

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“…30 48 (220) and no second impurity phase, which indicates the BCZT possess the perovskite structure according to the crystallographic indexing. 31,32 With the increase of BCZT doped, the diffraction peaks of the polymer matrix show a clear reduction in intensity, while those of BCZT became sharper and stronger. These results suggest that a stable solid solution was formed between BCZT and PVDF.…”

Section: Ftir Spectroscopymentioning

confidence: 99%

“…The XRD pattern of BCZT shows sharp crystalline peaks at about 22.28 (100), 32.18 (110), 39.58 (111), 45.88 (200), 56.38 (211), and 65.48 (220) and no second impurity phase, which indicates the BCZT possess the perovskite structure according to the crystallographic indexing 31,32. With the increase of BCZT doped, the diffraction peaks of the polymer matrix show a clear reduction in intensity, while those of BCZT became sharper and stronger.…”

mentioning

confidence: 98%

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Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Liu

Lin

et al. 2017

J of Applied Polymer Sci

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The morphotropic phase boundary composition 47(Ba 0.7 Ca 0.3 )TiO 3 -0.53Ba(Zr 0.2 Ti 0.8 )O 3 (calcium barium zirconate titanate, BCZT) were doped in poly(vinylidene fluoride) matrix by solution casting method. The effect of BCZT particles on polarization characteristics of composite films were investigated through dielectric spectra, hysteresis, and thermally stimulated discharge current measurements. It reveals that relative dielectric constant, remnant polarization, and energy storage density gradually increase and reach the maximum value with 39 at 100 Hz, 1.17 lC/cm 2 , and 3.69 J/cm 3 at the concentration of 20 vol % BCZT. The Gaussian method was employed to decompose thermally stimulated discharge current composite peaks and an approximate model was used to analyze the activation energy levels of these films. The results indicated that the introduction of BCZT is effective for the charge carrier traps and activation energy distribution in the relaxation process of composite films. The decreased molecular movements, and increased interfaces formed between the BCZT grains and the poly(vinylidene fluoride) matrix may be responsible for these performances. And a new relaxation peak appeared at about 370 K in composites when BCZT concentration exceeded 20 vol %, which was considered to be caused by the ferroelectric-paraelectric phase transition of BCZT.

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Section: Ftir Spectroscopymentioning

confidence: 99%

mentioning

confidence: 98%

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Liu

Lin

et al. 2017

J of Applied Polymer Sci

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“…Figure 1 shows the X-ray diffraction patters of 0.3 mol % Tb-doped BCZT used 0.2 mol % CaCl 2 as sintering aid in different sintering temperature. The XRD pattern of BCZT shows sharp crystalline peaks at about 22 ° (100), 32° (110), 39° (111), 45° (200), 56° (211) and 65° (220), which indicates the BCZT possess the perovskite structure according to the crystallographic indexing [9,10]. Even at 1300 ℃ sintering temperature, there is no second impurity phase in the solid solutions.…”

Section: Methodsmentioning

confidence: 99%

Low Sintering Temperature and High Piezoelectric Properties of Tb-doped (Ba0.859 Ca0.141) (Zr0.106 Ti0.894) O3 Using CaCl2 as Sintering Aid

Lu¹,

Lin²,

Liu³

2017

Proceedings of the 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017)

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“…Table 3 summarizes the mentioned and some other relevant works [136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154] published on this solid solution series. Addition of nanoparticles (ZnO, CuO and SnO 2 ) as sintering aids in Li-doped KNN materials have also been investigated but the piezoelectric coefficient d 33 is decreased [137].…”

Section: (K05na05)nbo3 (Knn)mentioning

confidence: 99%

Towards Lead-Free Piezoceramics: Facing a Synthesis Challenge

Villafuerte‐Castrejon

Morán

Reyes-Montero

et al. 2016

Materials

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The search for electroceramic materials with enhanced ferro-pyro-piezoelectric properties and revealing the perovskite type structure has been the objective of a significant number of manuscripts reported in the literature. This has been usually carried out by proposing the synthesis and processing of new compounds and solid solution series. In this work, several methods to obtain ferro-pyro-piezoelectric families of materials featuring the well-known ABO3 perovskite structure (or related) such as BaTiO3, Ba1–xCaxTi1–yZryO3, (Bi0.5Na0.5)TiO3, (K0.5Na0.5)NbO3 and their solid solutions with different cations either in the A or B positions, are presented. For this kind of materials, the challenge for obtaining a single phase compound with a specific grain size and morphology and, most importantly, with the adequate stoichiometry, will also be discussed. The results reviewed herein will be discussed in terms of the tendency of working with softer conditions, i.e., lower temperature and shorter reaction times, also referred to as soft-chemistry.

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Microwave-assisted synthesis and sintering of potassium sodium niobate lead-free piezoelectric ceramics

Cited by 70 publications

References 38 publications

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Low Sintering Temperature and High Piezoelectric Properties of Tb-doped (Ba0.859 Ca0.141) (Zr0.106 Ti0.894) O3 Using CaCl2 as Sintering Aid

Towards Lead-Free Piezoceramics: Facing a Synthesis Challenge

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