Determination of the phase relation of a Li La(1−)/3NbO3 system by the slow cooling floating zone method

Tanaka, Isao; Yoshihara, Risa; Nakazawa, Chie; Nagao, Masanori; Watauchi, Satoshi

doi:10.1016/j.jcrysgro.2018.11.030

Cited by 4 publications

(6 citation statements)

References 10 publications

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“…It has been reported that the melting point of LLNbO decreased as the concentration x of Li increased. 27) The Li concentration may be shifted from the molten starting material owing to the crystal growth temperature, which indicates that the segregation coefficient k Li is less than unity in the LLNbO perovskite structure from the melt to the crystal.…”

Section: Resultsmentioning

confidence: 99%

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Crystal growth and characterization of LixLa(1−x)/3NbO3 using Czochralski method

Minegishi

Hoshina

Tsurumi

et al. 2020

J. Ceram. Soc. Japan

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Single crystals of Li x La (1¹x)/3 NbO 3 were grown in air using Czochralski method from La-poor melt. The lithiumion conductivity of the crystals was measured. The length and maximum diameter of the boule grown were 23 and 20 mm, respectively. The boule contained no inclusions but was covered with a very thin polycrystalline film of LaNbO 4 and LiNbO 3 in its upper region. The composition of the crystals grown was estimated to be x = 0.15 and the starting melt composition was x = 0.20. The ionic conductivity of the crystal was anisotropic with • [100] = 2.8 © 10 ¹4 S cm ¹1 and • [001] = 9.7 © 10 ¹5 S cm ¹1 at 306 K. The activation energy, E a of these conductivities was almost the same in the range of 0.280.29 eV. Further, we discussed the anisotropic lithium-ion conductivity of the crystal.

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Section: Resultsmentioning

confidence: 99%

“…The phases of the as-grown crystals were identified by powder X-ray diffraction (XRD). Based on the results of this experiment and those in recent studies, 21), 27) we selected the LLNbO20 composition for further crystal growth.…”

Section: Introductionmentioning

confidence: 99%

Crystal growth and characterization of LixLa(1−x)/3NbO3 using Czochralski method

Minegishi

Hoshina

Tsurumi

et al. 2020

J. Ceram. Soc. Japan

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“…The rod was sintered at 1200 °C in air for up to 5 h to prepare the LLNbO single phase. The solvent was estimated to be Li-rich ( x = 0.185) and LaNbO 4 -poor (5–10 mol %) relative to the stoichiometric feed composition ( x = 0.10) as described previously . The solvent was prepared using the same procedure as feed rod preparation, and then approximately 0.6 g of the solvent was attached to the top of the feed rod to support TSFZ growth.…”

Section: Methodsmentioning

confidence: 99%

“…To obtain inclusion-free and uniform single crystals of LLNbO, the phase diagram in the Li 2 O–La 2 O 3 –Nb 2 O 5 system is important. We previously investigated the phase relationship of LLNbO using the SCFZ method . LLNbO exhibits incongruent melting to LaNbO 4 and a liquid form.…”

Section: Introductionmentioning

confidence: 99%

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Crystal Growth and Characterization of Li_xLa_(1–x)/3NbO₃ by the Traveling Solvent Floating Zone Method

Ali

Sato

Fukasawa

et al. 2019

Crystal Growth & Design

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Single crystals of Li x La(1–x)/3NbO3 were grown successfully using the traveling solvent floating zone method with LaNbO4-poor and Li-rich solvents. Crack- and inclusion-free single crystals with a typical diameter and length of 6 and 35 mm, respectively, were obtained. The crystals grown under Ar flow were black in color, and become colorless and transparent upon oxygen annealing. The composition of the grown crystals was uniform with x = 0.070 ± 0.001, which was lower that of feeds with x = 0.10 because of vaporization of the lithium component from the melt during growth. The ionic conductivity of the annealed crystal was anisotropic with σ[100] = 1.2 × 10–4 S·cm–1 and σ[001] = 7.4 × 10–5 S·cm–1.

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Growth and phase transition of Sr3Zr2O7 single crystals

Fukasawa

Maruyama

Yoshida

et al. 2023

Journal of Crystal Growth

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Determination of the phase relation of a Li La(1−)/3NbO3 system by the slow cooling floating zone method

Cited by 4 publications

References 10 publications

Crystal growth and characterization of Li<i><sub>x</sub></i>La<sub>(1−</sub><i><sub>x</sub></i><sub>)/3</sub>NbO<sub>3</sub> using Czochralski method

Crystal growth and characterization of Li<i><sub>x</sub></i>La<sub>(1−</sub><i><sub>x</sub></i><sub>)/3</sub>NbO<sub>3</sub> using Czochralski method

Crystal Growth and Characterization of Li_xLa_(1–x)/3NbO₃ by the Traveling Solvent Floating Zone Method

Growth and phase transition of Sr3Zr2O7 single crystals

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Determination of the phase relation of a Li La(1−)/3NbO3 system by the slow cooling floating zone method

Cited by 4 publications

References 10 publications

Crystal growth and characterization of Li<i><sub>x</sub></i>La<sub>(1−</sub><i><sub>x</sub></i><sub>)/3</sub>NbO<sub>3</sub> using Czochralski method

Crystal growth and characterization of Li<i><sub>x</sub></i>La<sub>(1−</sub><i><sub>x</sub></i><sub>)/3</sub>NbO<sub>3</sub> using Czochralski method

Crystal Growth and Characterization of LixLa(1–x)/3NbO3 by the Traveling Solvent Floating Zone Method

Growth and phase transition of Sr3Zr2O7 single crystals

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Crystal Growth and Characterization of Li_xLa_(1–x)/3NbO₃ by the Traveling Solvent Floating Zone Method