| Erratum to: "Grain Boundary Microcracking in ZrTiO4-Al2TiO5 Ceramics Induced by Thermal Expansion Anisotropy" |
| Ik-Jin Kim, Hyung-Chul Kim, Kee-Sung Lee1, In-Sub Han1 |
Institute for Processing and Application of Inorganic Materials(PAIM), Department of Materials Science and Engineering, Hanseo University
1Energy Materials Research Team, Korea Institute of Energy Research (KIER) |
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| ABSTRACT |
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The grain-boundary microcracking materials in the system A1$_2$Ti $O_{5}$ -ZrTi $O_4$(ZAT) is influenced by the thermal expansion anisotropy. The range of ZAT compositions investigated had showed very low thermal expansions of 0.3~1.3$times$10$^{-6}$K compared to 8.29$times$10$^{-6}$K of pure ZrTi $O_4$and 0.68$times$10$^{-6}$K of polycrystalline A1$_2$Ti $O_{5}$ , respectively, compared with the theoretical thermal expansion coefficient for a single crystal of A1$_2$Ti $O_{5}$ , 9.70$times$10$^{-6}$K. The low thermal expansion and microcraking temperature are apparently due to a combination of thermal contraction and expansion caused by the large thermal expansion anisotropy of the crystal axes of the A1$_2$Ti $O_{5}$ phase. ᬊ Ѐ㘷㠻ഀ䵡湵晡捴畲楮最 |
| Key words:
$A1_2$$TiO_5$, $ZrTiO_4$, Grain-boundary microcracking, Anisotropic thermal expansion, Hysteresis |
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