Electrical conductivity of non-stoichiometric Sr β-alumina single crystals prepared by a floating zone method

An Yu Zhang; Takaya Akashi; Takashi Goto

doi:10.1016/S0167-2738(02)00678-1

Electrical conductivity of non-stoichiometric Sr β-alumina single crystals prepared by a floating zone method

An Yu Zhang, Takaya Akashi, Takashi Goto

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Non-stoichiometric Sr β-alumina single crystals were prepared in SrO-MgO-Al₂O₃ system by a floating zone (FZ) method. The range of non-stoichiometry was determined as Sr_1-0.25xMg_1-xAl_10+xO_17+0.25x, where 0 < x ≤ 0.41. The lattice parameters of a increased and c decreased with increasing SrO content in the solid solution range. The single crystals had a cleavage plane parallel to the (001) plane and growth direction. The electrical conductivity parallel and perpendicular to the cleavage plane showed maximum at x = 0.2 (i.e., 13.8 mol% SrO). The activation energy of electrical conductivity parallel to the cleavage plane (140 to 165 kJ/mol) was almost the same as that perpendicular to the cleavage plane (150 to 170 kJ/mol).

Original language	English
Pages (from-to)	425-431
Number of pages	7
Journal	Solid State Ionics
Volume	156
Issue number	3-4
DOIs	https://doi.org/10.1016/S0167-2738(02)00678-1
Publication status	Published - 2003 Jan

Keywords

Cell parameters
Electrical conductivity
Floating zone method
Single crystal
Single-phase region
Sr β-alumina

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/S0167-2738(02)00678-1

Cite this

@article{408f7465d9fd4d05a6850911154ac2be,

title = "Electrical conductivity of non-stoichiometric Sr β-alumina single crystals prepared by a floating zone method",

abstract = "Non-stoichiometric Sr β-alumina single crystals were prepared in SrO-MgO-Al2O3 system by a floating zone (FZ) method. The range of non-stoichiometry was determined as Sr1-0.25xMg1-xAl10+xO17+0.25x, where 0 < x ≤ 0.41. The lattice parameters of a increased and c decreased with increasing SrO content in the solid solution range. The single crystals had a cleavage plane parallel to the (001) plane and growth direction. The electrical conductivity parallel and perpendicular to the cleavage plane showed maximum at x = 0.2 (i.e., 13.8 mol% SrO). The activation energy of electrical conductivity parallel to the cleavage plane (140 to 165 kJ/mol) was almost the same as that perpendicular to the cleavage plane (150 to 170 kJ/mol).",

keywords = "Cell parameters, Electrical conductivity, Floating zone method, Single crystal, Single-phase region, Sr β-alumina",

author = "Zhang, {An Yu} and Takaya Akashi and Takashi Goto",

note = "Funding Information: One of the authors (Anyu Zhang) thanks the financial support from Japanese Monbusho foundation for foreign students. The single crystal specimens were synthesized by using the facility at Laboratory for Advanced Materials, Institute for Materials Research, Tohoku University.",

year = "2003",

month = jan,

doi = "10.1016/S0167-2738(02)00678-1",

language = "English",

volume = "156",

pages = "425--431",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Electrical conductivity of non-stoichiometric Sr β-alumina single crystals prepared by a floating zone method

AU - Zhang, An Yu

AU - Akashi, Takaya

AU - Goto, Takashi

N1 - Funding Information: One of the authors (Anyu Zhang) thanks the financial support from Japanese Monbusho foundation for foreign students. The single crystal specimens were synthesized by using the facility at Laboratory for Advanced Materials, Institute for Materials Research, Tohoku University.

PY - 2003/1

Y1 - 2003/1

N2 - Non-stoichiometric Sr β-alumina single crystals were prepared in SrO-MgO-Al2O3 system by a floating zone (FZ) method. The range of non-stoichiometry was determined as Sr1-0.25xMg1-xAl10+xO17+0.25x, where 0 < x ≤ 0.41. The lattice parameters of a increased and c decreased with increasing SrO content in the solid solution range. The single crystals had a cleavage plane parallel to the (001) plane and growth direction. The electrical conductivity parallel and perpendicular to the cleavage plane showed maximum at x = 0.2 (i.e., 13.8 mol% SrO). The activation energy of electrical conductivity parallel to the cleavage plane (140 to 165 kJ/mol) was almost the same as that perpendicular to the cleavage plane (150 to 170 kJ/mol).

AB - Non-stoichiometric Sr β-alumina single crystals were prepared in SrO-MgO-Al2O3 system by a floating zone (FZ) method. The range of non-stoichiometry was determined as Sr1-0.25xMg1-xAl10+xO17+0.25x, where 0 < x ≤ 0.41. The lattice parameters of a increased and c decreased with increasing SrO content in the solid solution range. The single crystals had a cleavage plane parallel to the (001) plane and growth direction. The electrical conductivity parallel and perpendicular to the cleavage plane showed maximum at x = 0.2 (i.e., 13.8 mol% SrO). The activation energy of electrical conductivity parallel to the cleavage plane (140 to 165 kJ/mol) was almost the same as that perpendicular to the cleavage plane (150 to 170 kJ/mol).

KW - Cell parameters

KW - Electrical conductivity

KW - Floating zone method

KW - Single crystal

KW - Single-phase region

KW - Sr β-alumina

UR - http://www.scopus.com/inward/record.url?scp=0037213076&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037213076&partnerID=8YFLogxK

U2 - 10.1016/S0167-2738(02)00678-1

DO - 10.1016/S0167-2738(02)00678-1

M3 - Article

AN - SCOPUS:0037213076

VL - 156

SP - 425

EP - 431

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 3-4

ER -

Electrical conductivity of non-stoichiometric Sr β-alumina single crystals prepared by a floating zone method

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this