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http://dx.doi.org/10.6111/JKCGCT.2012.22.1.057

Characteristics of the sintered body of the Al2TiO5 with addition of LAS (β-spodumene) and Fe2O3  

Kim, Sang-Hun (KICET Icheon Branch)
Kang, Eun-Tae (School of Nano and Advanced Materials Engineering Gyeongsang National University)
Kim, Ung-Soo (KICET Icheon Branch)
Hwang, Kwang-Taek (KICET Icheon Branch)
Cho, Woo-Seok (KICET Icheon Branch)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.22, no.1, 2012 , pp. 57-63 More about this Journal
Abstract
$Al_2TiO_5$ ceramics were sintered by a solid-state reaction. LAS (${\beta}$-spodumene) and $Fe_2O_3$ were added to the $Al_2TiO_5$ composition for enhancement of sintering behavior such as mechanical strength and thermal shock resistance. The sintered body was much densified by addition of LAS and $Fe_2O_3$ because LAS formed the liquid-phase and $Fe_2O_3$ suppressed the grain growth. We have systematically investigated the sintering characteristics, microstructures, mechanical properties, and thermal shock resistance according to the change of the amount of additive. When the additive of LAS (20 wt%)-$Fe_2O_3$ was added to $Al_2TiO_5$, it confirmed that superior mechanical properties of the fracture strength of over 120 MPa and the thermal shock resistance of over $1,200^{\circ}C$ were achieved.
Keywords
$Al_2TiO_5$; Thermal shock characteristics; LAS (${\beta}$-spodumene);
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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