Phase evaluation during high temperature long heat treatments in the Y2O3-Al2O3-SiO2 system

S. Ahmad; T. Ludwig; M. Herrmann; M. M. Mahmoud; W. Lippmann; H. J. Seifert

doi:10.1016/j.jeurceramsoc.2014.05.025

Phase evaluation during high temperature long heat treatments in the Y₂O₃-Al₂O₃-SiO₂ system

S. Ahmad^*, T. Ludwig, M. Herrmann, M. M. Mahmoud, W. Lippmann, H. J. Seifert

^*Corresponding author for this work

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

33 Scopus citations

Abstract

The effect of high temperature long heat treatments on the microstructure of the eutectic glass composition in the Y₂O₃-Al₂O₃-SiO₂ system was examined. The qualitative and quantitative phase analyses were conducted by using scanning electron microscopy combined with energy dispersive analysis and electron microprobe. Simultaneous thermal analyses were carried out to determine the transition temperatures and enthalpies. The crystallization behavior of these glasses was monitored with X-ray powder diffraction. A needle like X-phase was observed in the structure of this eutectic composition after long heat treatment at 1350°C.

Original language	English
Pages (from-to)	3835-3840
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	34
Issue number	15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2014.05.025
State	Published - Dec 2014
Externally published	Yes

Bibliographical note

Funding Information:
The authors would like to thank DFG (German research foundation) for financial support.

Keywords

High temperature long heat treatments
X-phase

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2014.05.025

Cite this

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title = "Phase evaluation during high temperature long heat treatments in the Y2O3-Al2O3-SiO2 system",

abstract = "The effect of high temperature long heat treatments on the microstructure of the eutectic glass composition in the Y2O3-Al2O3-SiO2 system was examined. The qualitative and quantitative phase analyses were conducted by using scanning electron microscopy combined with energy dispersive analysis and electron microprobe. Simultaneous thermal analyses were carried out to determine the transition temperatures and enthalpies. The crystallization behavior of these glasses was monitored with X-ray powder diffraction. A needle like X-phase was observed in the structure of this eutectic composition after long heat treatment at 1350°C.",

keywords = "High temperature long heat treatments, X-phase",

author = "S. Ahmad and T. Ludwig and M. Herrmann and Mahmoud, \{M. M.\} and W. Lippmann and Seifert, \{H. J.\}",

note = "Funding Information: The authors would like to thank DFG (German research foundation) for financial support.",

year = "2014",

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doi = "10.1016/j.jeurceramsoc.2014.05.025",

language = "English",

volume = "34",

pages = "3835--3840",

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AU - Ahmad, S.

AU - Ludwig, T.

AU - Herrmann, M.

AU - Mahmoud, M. M.

AU - Lippmann, W.

AU - Seifert, H. J.

N1 - Funding Information: The authors would like to thank DFG (German research foundation) for financial support.

PY - 2014/12

Y1 - 2014/12

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AB - The effect of high temperature long heat treatments on the microstructure of the eutectic glass composition in the Y2O3-Al2O3-SiO2 system was examined. The qualitative and quantitative phase analyses were conducted by using scanning electron microscopy combined with energy dispersive analysis and electron microprobe. Simultaneous thermal analyses were carried out to determine the transition temperatures and enthalpies. The crystallization behavior of these glasses was monitored with X-ray powder diffraction. A needle like X-phase was observed in the structure of this eutectic composition after long heat treatment at 1350°C.

KW - High temperature long heat treatments

KW - X-phase

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