Microstructure and dielectric properties of tungsten bronze structured KLN and BNN ceramics: TiO2 effect

Peng Wang; Shu Lun Xu; Joon Hyung Lee; Jeong Joo Kim; Sang Hee Cho; Hee Young Lee

doi:10.1142/s0217979203018855

Microstructure and dielectric properties of tungsten bronze structured KLN and BNN ceramics: TiO₂ effect

Peng Wang, Shu Lun Xu, Joon Hyung Lee, Jeong Joo Kim, Sang Hee Cho, Hee Young Lee

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Abstract

The effect of TiO₂ addition on microstructure and dielectric characteristics of tungsten bronze structured K₆Li₄Nb₁₀O₃₀ (KLN) and Ba₂Na₁Nb₅O₁₅ (BNN) was examined. Solid solution limits of TiO₂ in KLN and BNN are thought to be around 0.5 and 0.4 mol, respectively. As the amount of TiO₂ increased, lattice constants of KLN and BNN decreased. Microstructure of BNN was sensitively influenced by TiO₂ addition, which was explained by the generation of vacancies. TiO₂ addition was effective in decreasing the phase transformation temperature of KLN, while it was effective in suppressing the dielectric curve of BNN at the phase transformation temperature.

Original language	English
Pages (from-to)	1267-1272
Number of pages	6
Journal	International Journal of Modern Physics B
Volume	17
Issue number	8-9 I
DOIs	https://doi.org/10.1142/s0217979203018855
State	Published - 10 Apr 2003

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title = "Microstructure and dielectric properties of tungsten bronze structured KLN and BNN ceramics: TiO2 effect",

abstract = "The effect of TiO2 addition on microstructure and dielectric characteristics of tungsten bronze structured K6Li4Nb10O30 (KLN) and Ba2Na1Nb5O15 (BNN) was examined. Solid solution limits of TiO2 in KLN and BNN are thought to be around 0.5 and 0.4 mol, respectively. As the amount of TiO2 increased, lattice constants of KLN and BNN decreased. Microstructure of BNN was sensitively influenced by TiO2 addition, which was explained by the generation of vacancies. TiO2 addition was effective in decreasing the phase transformation temperature of KLN, while it was effective in suppressing the dielectric curve of BNN at the phase transformation temperature.",

author = "Peng Wang and Xu, {Shu Lun} and Lee, {Joon Hyung} and Kim, {Jeong Joo} and Cho, {Sang Hee} and Lee, {Hee Young}",

year = "2003",

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language = "English",

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TY - JOUR

T1 - Microstructure and dielectric properties of tungsten bronze structured KLN and BNN ceramics

T2 - TiO2 effect

AU - Wang, Peng

AU - Xu, Shu Lun

AU - Lee, Joon Hyung

AU - Kim, Jeong Joo

AU - Cho, Sang Hee

AU - Lee, Hee Young

PY - 2003/4/10

Y1 - 2003/4/10

N2 - The effect of TiO2 addition on microstructure and dielectric characteristics of tungsten bronze structured K6Li4Nb10O30 (KLN) and Ba2Na1Nb5O15 (BNN) was examined. Solid solution limits of TiO2 in KLN and BNN are thought to be around 0.5 and 0.4 mol, respectively. As the amount of TiO2 increased, lattice constants of KLN and BNN decreased. Microstructure of BNN was sensitively influenced by TiO2 addition, which was explained by the generation of vacancies. TiO2 addition was effective in decreasing the phase transformation temperature of KLN, while it was effective in suppressing the dielectric curve of BNN at the phase transformation temperature.

AB - The effect of TiO2 addition on microstructure and dielectric characteristics of tungsten bronze structured K6Li4Nb10O30 (KLN) and Ba2Na1Nb5O15 (BNN) was examined. Solid solution limits of TiO2 in KLN and BNN are thought to be around 0.5 and 0.4 mol, respectively. As the amount of TiO2 increased, lattice constants of KLN and BNN decreased. Microstructure of BNN was sensitively influenced by TiO2 addition, which was explained by the generation of vacancies. TiO2 addition was effective in decreasing the phase transformation temperature of KLN, while it was effective in suppressing the dielectric curve of BNN at the phase transformation temperature.

UR - http://www.scopus.com/inward/record.url?scp=0038101503&partnerID=8YFLogxK

U2 - 10.1142/s0217979203018855

DO - 10.1142/s0217979203018855

M3 - Article

AN - SCOPUS:0038101503

SN - 0217-9792

VL - 17

SP - 1267

EP - 1272

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 8-9 I

ER -

Microstructure and dielectric properties of tungsten bronze structured KLN and BNN ceramics: TiO₂ effect

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