Synthesis of textured 0.8Bi0.5Na0.5TiO3 – 0.2Bi0.5K0.5TiO3 lead-free ceramics
Vol. 128 No. 1C (2019), Original Article
Vol. 128 No. 1C (2019)

Synthesis of textured 0.8Bi0.5Na0.5TiO3 – 0.2Bi0.5K0.5TiO3 lead-free ceramics

Original Article
https://doi.org/10.26459/hueuni-jns.v128i1C.5342
Published 2019-11-11
Le Dai Vuong
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
Dao Anh Quang
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
Dang Anh Tuan
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
Nguyen Ngoc Trac
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
Nguyen Khanh Quang
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
Vo Thi Thanh Kieu
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
Dao Duy Hong Ngoc
Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam
PDF (Vietnamese)

Keywords

Bi4Ti3O12
BNKT
Na2CO3 – K2CO3
gốm không chì Bi4Ti3O12
BNKT
Na2CO3 – K2CO3
lead-free ceramics

How to Cite

1.
Đại Vương L, Anh Quang Đào, Anh Tuấn Đặng, Ngọc Trác N, Khánh Quang N, Thị Thanh Kiều V, Duy Hồng Ngoc Đào. Synthesis of textured 0.8Bi0.5Na0.5TiO3 – 0.2Bi0.5K0.5TiO3 lead-free ceramics. hueuni-jns [Internet]. 2019Nov.11 [cited 2024Nov.28];128(1C):55-62. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/5342
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Abstract

In this study, Bi4Ti3O12 templates were synthesized using the molten salt method in Na2CO3 and K2CO3 fluxes. The as-prepared Bi4Ti3O12 templates are composed of plate-like morphologies of lengths 5–20 μm and widths 0.5–1 μm at the heating temperature of 1050 °C. From these Bi4Ti3O12 templates, we studied the synthesis of textured 0.8Bi0.5Na0.5TiO3 – 0.2Bi0.5K0.5TiO3 lead-free ceramics by employing the template grain growth method. The effect of sintering temperature on the structure, microstructure, and degree of orientation of the ceramic materials was investigated. The results show that all the ceramic samples have a pure perovskite phase with a rhombic phase structure in the sintering temperature range from 950 to 1050 °C. At the optimum temperature of 1050 °C, the ceramics exhibit the best physical properties such as density (5.94 g/cm3) (the relative density is 98.84% of the theoretical value). The degree of orientation of the synthesized ceramics has the highest values of 65%.

https://doi.org/10.26459/hueuni-jns.v128i1C.5342
PDF (Vietnamese)

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