Influence of sintering temperature on crystal structure, microstructure and electrical properties of BNT-BKT-BZT piezoelectric ceramic

Sumang, Rattiphorn; Buasri, W.; Kumar, Nitish; Bongkarn, Theerachai

doi:10.1080/10584587.2018.1445347

Cited by 7 publications

(2 citation statements)

References 40 publications

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Section: Resultssupporting

confidence: 90%

“…The Rietveld refinement shown in Figure 10 and Table 2 can provide better crystallographic information. The best fit to the XRD patterns was achieved using a combination of R3c (rhombohedral) and P4bm (tetragonal) space groups, which is consistent with previous work by Sumang et al 40 and Zhao et al 41 As the template grain size increases, the proportion of the R3c phase structure decreases from 39.4% to 35.1%, whereas on the contrary, the P4bm phase increases from 60.6% to 64.9%. This result demonstrates that changes in the size of the template can have a slight effect on the phase structure.…”

Section: Resultssupporting

confidence: 89%

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Effect of the template particles size on structure and piezoelectric properties of 〈0 0 1〉‐textured BNT‐based ceramics

Li,

Huang,

Lin

et al. 2023

J Am Ceram Soc.

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This research investigated the effect of Bi4Ti3O12 (BiT) template particles size on the structure and piezoelectric properties of 〈001〉‐textured (Bi0.5Na0.5)TiO3 (BNT)‐based lead‐free piezoelectric ceramics. Results of X‐ray diffractometer analyses and scanning electron microscopy observations showed that high purity BiT template particles could be obtained with the KCl as the molten salt system. Highly 〈001〉‐textured (~87%) BNT‐based ceramics prepared with large size BiT templates (7.75 µm) exhibited a high inverse piezoelectric constant d33* (1100 pm/N), which was ∼3.38‐fold larger than that with 1.91 µm (325 pm/N). In addition, we have found that too small the template size can make it difficult to align the orientation of the template during the casting process, whereas too large the size can create problems such as too much hysteresis (∆S/Smax = 67%). This study has demonstrated that the use of high purity large size BiT template particles could provide a feasible route to fabricate BNT‐based textured ceramics with desired electro‐strain properties.

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Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 89%