Effect of different pore formers on the performance of lead free piezoelectric ceramics

Pinheiro, Evelyn Derina; Thenmuhil, D.

doi:10.1080/00150193.2021.1980343

Cited by 3 publications

(1 citation statement)

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“…Although the dependence of acoustic impedance and HFOM of porous piezoceramics fabricated by BURPS method on porosity is well established, the influence of the porosity on piezoelectric and electromechanical properties of porous ceramics has not been systematically studied yet. [33][34][35][36][37][38] In this paper, 0.57(Bi 0.8 La 0.2 )FeO 3 -0.43PbTiO 3 (BLF-PT) porous ceramics with porosity ranging from 4.7 to 24.3 vol.% have been prepared by BURPS technique using polymethyl methacrylate (PMMA) as the pore forming agent. Unexpectedly, d 33 of BLF-PT-based porous ceramics shows an abnormal increase at lower porosity.…”

Section: Introductionmentioning

confidence: 99%

Investigation on electric properties of 0.57(Bi_0.8La_0.2)FeO₃‐0.43PbTiO₃ porous ceramics prepared by burnable plastic sphere method

Wang,

Chen,

Jia

et al. 2023

Int J Applied Ceramic Tech

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In this study, 0.57(Bi0.8La0.2)FeO3‐0.43PbTiO3 (BLF‐PT) porous ceramics were fabricated by the burnable plastic sphere method using polymethyl methacrylate (PMMA) as a pore forming agent. X‐ray diffraction results reveal that BLF‐PT porous ceramics mixed with tetragonal and rhombohedral phases display the single perovskite structure, changing little for different porosities. Scanning electron microscope images show that porosity of BLF‐PT ceramics increases with the increase of PMMA content with average grain size of 3.2–3.5 μm. Different from the continuous decrease of dielectric constant εr and remnant polarization Pr, piezoelectric constant d33 of BLF‐PT porous ceramics increases initially but then drops with the increase of porosity that reaches to the maximum of 230 pC/N at porosity of 8.5 vol.%. The abnormal enhancement of piezoelectric property is attributed to the unique three‐dimensional grid porous ceramic skeleton and uniformly distributed grain size. Moreover, acoustic impedance Z of BLF‐PT porous ceramic is 11.2 MRayls at porosity of 24.3 vol.% comparing with that of 17.7 MRayls for bulk ceramics, which reduces by 58%. BLF‐PT porous ceramics at lower porosity with enhanced piezoelectric and acoustic matching performances have a great potential in the fields of underwater acoustic transducers and medical ultrasonic diagnosis.

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Section: Introductionmentioning

confidence: 99%

Investigation on electric properties of 0.57(Bi_0.8La_0.2)FeO₃‐0.43PbTiO₃ porous ceramics prepared by burnable plastic sphere method

Wang,

Chen,

Jia

et al. 2023

Int J Applied Ceramic Tech

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Fabrication of Ceramic-Polymer Piezo-Composites with Triply Periodic Minimal Interfaces via Digital Light Processing

Liu,

He,

et al. 2023

Chinese Journal of Mechanical Engineering: Additive Manufacturi

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A review of pore-forming agents on the structures, porosities, and mechanical properties of porous ceramics

Jalaluddin,

Azlan,

Rashid

et al. 2024

MATH

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<p>This review article provided a thorough examination of porous ceramic materials, concentrating on production, characteristics, and the involvement of pore-forming agents. The primary objective of this research was to evaluate the effects of various ceramic materials and pore-forming agents on the structure, porosity, and mechanical characteristics of porous ceramics. The study's scope included a thorough investigation of key sources of literature, such as academic publications, review articles, and industry reports, to provide a comprehensive understanding of porous ceramic technology. According to the literature review, the selection of ceramic material and pore-forming agents has a significant influence on the pore size distribution, porosity, and mechanical strength of porous ceramics. Various manufacturing methods, including foaming, sintering, and sol-gel procedures, were explored in terms of their influence on porous ceramic microstructure and characteristics. Furthermore, the study emphasized the need to optimize processing settings and select pore-forming agents to obtain the necessary qualities in porous ceramic materials. Overall, this review is useful for researchers, engineers, and practitioners who desire to learn more about porous ceramic manufacturing, characteristics, and applications.</p>

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Effect of different pore formers on the performance of lead free piezoelectric ceramics

Cited by 3 publications

References 50 publications

Investigation on electric properties of 0.57(Bi_0.8La_0.2)FeO₃‐0.43PbTiO₃ porous ceramics prepared by burnable plastic sphere method

Investigation on electric properties of 0.57(Bi_0.8La_0.2)FeO₃‐0.43PbTiO₃ porous ceramics prepared by burnable plastic sphere method

Fabrication of Ceramic-Polymer Piezo-Composites with Triply Periodic Minimal Interfaces via Digital Light Processing

A review of pore-forming agents on the structures, porosities, and mechanical properties of porous ceramics

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Effect of different pore formers on the performance of lead free piezoelectric ceramics

Cited by 3 publications

References 50 publications

Investigation on electric properties of 0.57(Bi0.8La0.2)FeO3‐0.43PbTiO3 porous ceramics prepared by burnable plastic sphere method

Investigation on electric properties of 0.57(Bi0.8La0.2)FeO3‐0.43PbTiO3 porous ceramics prepared by burnable plastic sphere method

Fabrication of Ceramic-Polymer Piezo-Composites with Triply Periodic Minimal Interfaces via Digital Light Processing

A review of pore-forming agents on the structures, porosities, and mechanical properties of porous ceramics

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Investigation on electric properties of 0.57(Bi_0.8La_0.2)FeO₃‐0.43PbTiO₃ porous ceramics prepared by burnable plastic sphere method

Investigation on electric properties of 0.57(Bi_0.8La_0.2)FeO₃‐0.43PbTiO₃ porous ceramics prepared by burnable plastic sphere method