Transmission electron microscopy studies of La2O3-doped α-SiAlON ceramics

S Turan; H Mandal; F Kara; KM Knowles

Transmission electron microscopy studies of La₂O₃-doped α-SiAlON ceramics

S Turan
, H Mandal
, F Kara
, KM Knowles

Rectorate

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

Abstract

alpha-SiAlON is able to accommodate cations into its crystal structure if the cations are sufficiently small in size, thus helping to reduce the volume of the remnant grain boundary phase after processing. In this study, the possibility of being able to introduce the relatively large La3+ cation into the alpha-SiAlON crystal structure has been investigated. For this, alpha-SiAlONs doped with (i) La2O3 and CaO and (ii) La2O3 and Yb2O3 were produced. Energy dispersive X-ray spectrometry results confirm that lanthanum can indeed be incorporated into the alpha-SiAlON structure if other smaller cations are also present.

Original language	English
Title of host publication	ELECTRON MICROSCOPY AND ANALYSIS 1999
Editors	CJ Kiely
Place of Publication	TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX
Publisher	IOP Publishing Ltd.
Pages	417-420
Number of pages	4
ISBN (Print)	0-7503-0577-0
Publication status	Published - 1999

Publication series

Name	INSTITUTE OF PHYSICS CONFERENCE SERIES
Publisher	IOP PUBLISHING LTD

Bibliographical note

Biennial Meeting of the Electron-Microscopy-and-Analysis-Group of the Institute of Physics (EMAG 99), UNIV SHEFFIELD, SHEFFIELD, ENGLAND, AUG 24-27, 1999

Cite this

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title = "Transmission electron microscopy studies of La2O3-doped α-SiAlON ceramics",

abstract = "alpha-SiAlON is able to accommodate cations into its crystal structure if the cations are sufficiently small in size, thus helping to reduce the volume of the remnant grain boundary phase after processing. In this study, the possibility of being able to introduce the relatively large La3+ cation into the alpha-SiAlON crystal structure has been investigated. For this, alpha-SiAlONs doped with (i) La2O3 and CaO and (ii) La2O3 and Yb2O3 were produced. Energy dispersive X-ray spectrometry results confirm that lanthanum can indeed be incorporated into the alpha-SiAlON structure if other smaller cations are also present.",

author = "S Turan and H Mandal and F Kara and KM Knowles",

note = "Biennial Meeting of the Electron-Microscopy-and-Analysis-Group of the Institute of Physics (EMAG 99), UNIV SHEFFIELD, SHEFFIELD, ENGLAND, AUG 24-27, 1999",

year = "1999",

language = "English",

isbn = "0-7503-0577-0",

series = "INSTITUTE OF PHYSICS CONFERENCE SERIES",

publisher = "IOP Publishing Ltd.",

pages = "417--420",

editor = "CJ Kiely",

booktitle = "ELECTRON MICROSCOPY AND ANALYSIS 1999",

address = "United Kingdom",

}

Transmission electron microscopy studies of La₂O₃-doped α-SiAlON ceramics. / Turan, S; Mandal, H; Kara, F et al.
ELECTRON MICROSCOPY AND ANALYSIS 1999. ed. / CJ Kiely. TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX: IOP Publishing Ltd., 1999. p. 417-420 (INSTITUTE OF PHYSICS CONFERENCE SERIES).

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

TY - GEN

T1 - Transmission electron microscopy studies of La2O3-doped α-SiAlON ceramics

AU - Turan, S

AU - Mandal, H

AU - Kara, F

AU - Knowles, KM

N1 - Biennial Meeting of the Electron-Microscopy-and-Analysis-Group of the Institute of Physics (EMAG 99), UNIV SHEFFIELD, SHEFFIELD, ENGLAND, AUG 24-27, 1999

PY - 1999

Y1 - 1999

N2 - alpha-SiAlON is able to accommodate cations into its crystal structure if the cations are sufficiently small in size, thus helping to reduce the volume of the remnant grain boundary phase after processing. In this study, the possibility of being able to introduce the relatively large La3+ cation into the alpha-SiAlON crystal structure has been investigated. For this, alpha-SiAlONs doped with (i) La2O3 and CaO and (ii) La2O3 and Yb2O3 were produced. Energy dispersive X-ray spectrometry results confirm that lanthanum can indeed be incorporated into the alpha-SiAlON structure if other smaller cations are also present.

AB - alpha-SiAlON is able to accommodate cations into its crystal structure if the cations are sufficiently small in size, thus helping to reduce the volume of the remnant grain boundary phase after processing. In this study, the possibility of being able to introduce the relatively large La3+ cation into the alpha-SiAlON crystal structure has been investigated. For this, alpha-SiAlONs doped with (i) La2O3 and CaO and (ii) La2O3 and Yb2O3 were produced. Energy dispersive X-ray spectrometry results confirm that lanthanum can indeed be incorporated into the alpha-SiAlON structure if other smaller cations are also present.

M3 - Conference contribution

SN - 0-7503-0577-0

T3 - INSTITUTE OF PHYSICS CONFERENCE SERIES

SP - 417

EP - 420

BT - ELECTRON MICROSCOPY AND ANALYSIS 1999

A2 - Kiely, CJ

PB - IOP Publishing Ltd.

CY - TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX