The structure and optical properties of lead-free transparent KNLTN-La0.01 ceramics prepared by conventional sintering technique

• Autorzy: Yang W L , Xiu H J , Xiong Y L , Wang J , Yuan C X , Wei J , Zhou Z X

Identyfikatory

DOI

10.2478/s13536-014-0226-9

• Języki publikacji: EN

Abstrakty

EN

(Na0.52K0.44Li0.04)0.97La0.01Ta0.20Nb0.80O3 (KNLTN–La0.01) lead-free subtransparent ceramics was prepared by a conventional sintering technique. The structure and the optical properties of the ceramics were investigated. The room temperature crystallographic indexing revealed the ABO3 perovskite type, tetragonal phase and P4mm point group in the ceramics. The surface and fractured surface SEM micrographs showed a dense microstructure with few micropores in KNLTN–La0.01 ceramics, which was obviously better than for the pure KNLTN ceramics. The refractive indexes of the films were investigated by an ellipsometer and the results show that the KNLTN–La0.01 subtransparent ceramics reveals significant wavelength dependent dispersion. The refractive index ranges from 2.14 to 2.06 with the wavelength increase from 380 nm to 900 nm. The dispersive behavior was analyzed by three parameters of Cauchy dispersion model and the values of the parameters A, B and C are 2.0610±0.0005, 0.0054±0.0003 and 0.00069±0.00004, respectively.

Słowa kluczowe

EN

lead-free ceramics; subtransparent ceramics; optical properties; refractive index dispersion; Cauchy model

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2014
• Tom: Vol. 32, No. 4
• Strony: 597--603
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Yang W L

• Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China
• Department of Physics, Harbin Institute of Technology, Harbin, 150001, PR China

autor

Xiu H J

• Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China

autor

Xiong Y L

• Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China

autor

Wang J

autor

Yuan C X

• Department of Physics, Harbin Institute of Technology, Harbin, 150001, PR China

autor

Wei J

• Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China

autor

Zhou Z X

• Department of Physics, Harbin Institute of Technology, Harbin, 150001, PR China

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