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High Temperature Materials and Processes

Editor-in-Chief: Fukuyama, Hiroyuki

Editorial Board: Waseda, Yoshio / Fecht, Hans-Jörg / Reddy, Ramana G. / Manna, Indranil / Nakajima, Hideo / Nakamura, Takashi / Okabe, Toru / Ostrovski, Oleg / Pericleous, Koulis / Seetharaman, Seshadri / Straumal, Boris / Suzuki, Shigeru / Tanaka, Toshihiro / Terzieff, Peter / Uda, Satoshi / Urban, Knut / Baron, Michel / Besterci, Michael / Byakova, Alexandra V. / Gao, Wei / Glaeser, Andreas / Gzesik, Z. / Hosson, Jeff / Masanori, Iwase / Jacob, Kallarackel Thomas / Kipouros, Georges / Kuznezov, Fedor


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Open Access
Online
ISSN
2191-0324
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Volume 32, Issue 3

Issues

Mechanical Properties of the Directionally Solidified Ceramic Eutectic of Al2O3/Al16Ti5O34 Phase Structure

Serkan Abali
  • Corresponding author
  • Çanakkale Onsekiz Mart University, Çan Vocational School, Department of Materials and Materials Processing Technology, Çanakkale 17400, Turkey
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  • Other articles by this author:
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/ Ahmet Ekerim
  • Yildiz Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Metallurgical and Materials, Istanbul 34210, Turkey
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-06-15 | DOI: https://doi.org/10.1515/htmp-2012-0124

Abstract

Al2O3/TiO2 eutectics containing 62–64 wt% Al2O3 were fabricated by a laser floating zone method. Raman spectrometry was used to determine the phase composition. The compressive creep strength of AT36 (Al16Ti5O34/Al2O3) crystal at 1500°C under the strain rate of 1.0 × 10−4 s−1 has 372 MPa, which is about higher than β-Al2TiO5 and β-Al2TiO5/Al2O3 crystals. High-temperature flexural strength, elastic modulus, hardness and fracture toughness of the AT36 crystals were analyzed. The highest flexure strength at ambient temperature was found in the material with 36 wt% TiO2. In addition, we briefly discussed the relationships between microstructure and mechanical properties in AT36 crystal.

Keywords: alumina; rutile; strength; eutectic; aluminum titanate

About the article

Received: 2012-08-04

Accepted: 2012-11-16

Published Online: 2013-06-15

Published in Print: 2013-06-14


Citation Information: High Temperature Materials and Processes, Volume 32, Issue 3, Pages 309–315, ISSN (Online) 2191-0324, ISSN (Print) 0334-6455, DOI: https://doi.org/10.1515/htmp-2012-0124.

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©[2013] by Walter de Gruyter Berlin Boston.Get Permission

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