Synthesis and physical properties of (NaxRE1-x) AlB14 (RE=Li, Mg, Rare earths) obtained by molten Al flux

Shigeru Okada; Kunio Kudou; Toetsu Shishido; Kunio Yubuta; Takao Mori

doi:10.4028/www.scientific.net/SSP.170.150

Synthesis and physical properties of (Na_xRE_1-x) AlB₁₄ (RE=Li, Mg, Rare earths) obtained by molten Al flux

Shigeru Okada, Kunio Kudou, Toetsu Shishido, Kunio Yubuta, Takao Mori

Cooperative Research and Development Center for Advanced Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Single crystals of quaternary compounds in the solid solution (Na _xRE_1-x)AlB₁₄ (RE=Li, Mg, rare earths (Tb, Dy, Ho, Er, Tm, Yb, Lu)) were grown by the Na-RE-Al-B system using a molten Al-self flux under an Ar gas. The single crystals of LiAlB₁₄, NaAlB ₁₄, MgAlB₁₄ and (Na_xMg_1-x)AlB ₁₄ (0.21≤x≤0) were grown; the quaternary boride (Na _xLi_1-x)AlB₁₄ and (Na_xRE _1-x)AlB₁₄ (Tb, Dy, Ho, Er, Tm, Yb, Lu) phases were not obtained at the single crystal growth experiment in the Na-Li-Al-B and Na-RE-Al-B systems. The as-growth LiAlB₁₄, NaAlB₁₄, MgAlB₁₄, (Na_0.08Mg_0.92)AlB₁₄ and (Na_0.21Mg_0.79)AlB₁₄ single crystals were subjected to chemical analyses and measurements of unit-cell parameter. The homogeneity range for the solid solutions of (Na_xMg _1-x)AlB₁₄ (0.21≤x≤0) crystals was studied by XRD and chemical analyses. Measurements of microhardness in air and magnetic susceptibility of crystalline samples of as-grown (Na_xMg _1-x)AlB₁₄ (x=1, 0.21≤x≤0) have been measured in the temperature range of 300 K to 2 K.

Original language	English
Title of host publication	Solid Compounds of Transition Elements, SCTE2010
Publisher	Trans Tech Publications Ltd
Pages	150-153
Number of pages	4
ISBN (Print)	9783037850657
DOIs	https://doi.org/10.4028/www.scientific.net/SSP.170.150
Publication status	Published - 2011
Event	17th International Conference on Solid Compounds of Transition Elements, SCTE2010 - Annecy, France Duration: 2010 Sept 5 → 2010 Sept 10

Publication series

Name	Solid State Phenomena
Volume	170
ISSN (Print)	1012-0394

Other

Other	17th International Conference on Solid Compounds of Transition Elements, SCTE2010
Country/Territory	France
City	Annecy
Period	10/9/5 → 10/9/10

Keywords

Al-self flux
EDS measurement
Magnetic susceptibility
Vickers microhardness

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

Access to Document

10.4028/www.scientific.net/SSP.170.150

Cite this

Synthesis and physical properties of (Na_xRE_1-x) AlB₁₄ (RE=Li, Mg, Rare earths) obtained by molten Al flux. / Okada, Shigeru; Kudou, Kunio; Shishido, Toetsu et al.
Solid Compounds of Transition Elements, SCTE2010. Trans Tech Publications Ltd, 2011. p. 150-153 (Solid State Phenomena; Vol. 170).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Okada, S, Kudou, K, Shishido, T, Yubuta, K & Mori, T 2011, Synthesis and physical properties of (Na_xRE_1-x) AlB₁₄ (RE=Li, Mg, Rare earths) obtained by molten Al flux. in Solid Compounds of Transition Elements, SCTE2010. Solid State Phenomena, vol. 170, Trans Tech Publications Ltd, pp. 150-153, 17th International Conference on Solid Compounds of Transition Elements, SCTE2010, Annecy, France, 10/9/5. https://doi.org/10.4028/www.scientific.net/SSP.170.150

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abstract = "Single crystals of quaternary compounds in the solid solution (Na xRE1-x)AlB14 (RE=Li, Mg, rare earths (Tb, Dy, Ho, Er, Tm, Yb, Lu)) were grown by the Na-RE-Al-B system using a molten Al-self flux under an Ar gas. The single crystals of LiAlB14, NaAlB 14, MgAlB14 and (NaxMg1-x)AlB 14 (0.21≤x≤0) were grown; the quaternary boride (Na xLi1-x)AlB14 and (NaxRE 1-x)AlB14 (Tb, Dy, Ho, Er, Tm, Yb, Lu) phases were not obtained at the single crystal growth experiment in the Na-Li-Al-B and Na-RE-Al-B systems. The as-growth LiAlB14, NaAlB14, MgAlB14, (Na0.08Mg0.92)AlB14 and (Na0.21Mg0.79)AlB14 single crystals were subjected to chemical analyses and measurements of unit-cell parameter. The homogeneity range for the solid solutions of (NaxMg 1-x)AlB14 (0.21≤x≤0) crystals was studied by XRD and chemical analyses. Measurements of microhardness in air and magnetic susceptibility of crystalline samples of as-grown (NaxMg 1-x)AlB14 (x=1, 0.21≤x≤0) have been measured in the temperature range of 300 K to 2 K.",

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author = "Shigeru Okada and Kunio Kudou and Toetsu Shishido and Kunio Yubuta and Takao Mori",

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AU - Mori, Takao

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N2 - Single crystals of quaternary compounds in the solid solution (Na xRE1-x)AlB14 (RE=Li, Mg, rare earths (Tb, Dy, Ho, Er, Tm, Yb, Lu)) were grown by the Na-RE-Al-B system using a molten Al-self flux under an Ar gas. The single crystals of LiAlB14, NaAlB 14, MgAlB14 and (NaxMg1-x)AlB 14 (0.21≤x≤0) were grown; the quaternary boride (Na xLi1-x)AlB14 and (NaxRE 1-x)AlB14 (Tb, Dy, Ho, Er, Tm, Yb, Lu) phases were not obtained at the single crystal growth experiment in the Na-Li-Al-B and Na-RE-Al-B systems. The as-growth LiAlB14, NaAlB14, MgAlB14, (Na0.08Mg0.92)AlB14 and (Na0.21Mg0.79)AlB14 single crystals were subjected to chemical analyses and measurements of unit-cell parameter. The homogeneity range for the solid solutions of (NaxMg 1-x)AlB14 (0.21≤x≤0) crystals was studied by XRD and chemical analyses. Measurements of microhardness in air and magnetic susceptibility of crystalline samples of as-grown (NaxMg 1-x)AlB14 (x=1, 0.21≤x≤0) have been measured in the temperature range of 300 K to 2 K.

AB - Single crystals of quaternary compounds in the solid solution (Na xRE1-x)AlB14 (RE=Li, Mg, rare earths (Tb, Dy, Ho, Er, Tm, Yb, Lu)) were grown by the Na-RE-Al-B system using a molten Al-self flux under an Ar gas. The single crystals of LiAlB14, NaAlB 14, MgAlB14 and (NaxMg1-x)AlB 14 (0.21≤x≤0) were grown; the quaternary boride (Na xLi1-x)AlB14 and (NaxRE 1-x)AlB14 (Tb, Dy, Ho, Er, Tm, Yb, Lu) phases were not obtained at the single crystal growth experiment in the Na-Li-Al-B and Na-RE-Al-B systems. The as-growth LiAlB14, NaAlB14, MgAlB14, (Na0.08Mg0.92)AlB14 and (Na0.21Mg0.79)AlB14 single crystals were subjected to chemical analyses and measurements of unit-cell parameter. The homogeneity range for the solid solutions of (NaxMg 1-x)AlB14 (0.21≤x≤0) crystals was studied by XRD and chemical analyses. Measurements of microhardness in air and magnetic susceptibility of crystalline samples of as-grown (NaxMg 1-x)AlB14 (x=1, 0.21≤x≤0) have been measured in the temperature range of 300 K to 2 K.

KW - Al-self flux

KW - EDS measurement

KW - Magnetic susceptibility

KW - Vickers microhardness

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