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Accession number;07A0232187
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| Title;High Temperature Stability of Yttria Stabilized Zirconia |
| Author;
OGAWA MITSUE
(Japan fine Ceramics Center, JPN)
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Journal Title;Japan Journal of Thermophysical Properties
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Journal Code:X0597A
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ISSN:0913-946X
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VOL.21;NO.1;PAGE.8-13(2007)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Yttria stabilized zirconia (YSZ) has been studied as a candidate reference material for thermophysical properties. In this study, the high-temperature stability of thermal diffusivity has been evaluated using Referceram ZR1 which was originally developed as a reference material for mechanical testing of fine ceramics. Thermal diffusivity of specimens before and after heat-treatment at various temperatures between 200 and 1500.DEG.C. in air were measured by laser flash method. The heat-treatment at 900.DEG.C. effected little change in thermal diffusivity. However, after heat-treatment at 1000.DEG.C. or above, thermal diffusivity values were effected by phase separation, phase transportation, crack occurred in grain boundary, and so on. Therefore ZR1 should be used as a thermophysical reference material at temperatures below 900.DEG.C.. (author abst.) |
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