| 학회 | 한국재료학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 삼척 쏠비치 호텔&리조트) |
| 권호 | 25권 2호 |
| 발표분야 | D. 구조 재료 분과 |
| 제목 | Comparison of phase transformation and physical properties of Zirconia Ceramics with Al3+, Ga3+, Ru3+, In3+, Er3+, Ce3+ substitutions and Ion radius differences |
| 초록 | Among ceramic materials, zirconia is an industrially popular material. In particular, the compressive strength, breaking strength, acid resistance, and wear resistance are excellent, so they are used in many industries other than households. Y3+, which is currently used as the most stable additive in zirconia ceramics, has an ion radius of 90pm with an ion radius of 18pm larger than Zr4+, and 3 ~ 5% of volume expansion occurs when Y3+ is added. Transformed to tetragonal phase and maintained at room temperature. In this experiment, hydrothermal synthesis was carried out at 160 °C for 24 hours, a molded body was formed by uniaxial pressure molding, and sintering was performed at 900 °C for 2 hours. In order to compare the differences between properties and phase deformation depending on ionic radius, the results were measured and analyzed with XRD, EDS, UV-Visible, FT-IR, and Sintering Density. The smaller the ion radius, the smaller the square peak ratio, while the larger the ion radius difference between the zirconia and the greater the tetragonal phase peak ratio. |
| 저자 | 김윤호, 김택남, 박승민, 고명석, 민효진, 이나영, 변지철 |
| 소속 | 배재대 |
| 키워드 | Al<SUP>3+</SUP>; Ga<SUP>3+</SUP>; Ru<SUP>3+</SUP>; In<SUP>3+</SUP>; Er<SUP>3+</SUP>; Ce<SUP>3+</SUP>; Y<SUP>3+</SUP>; phase transformation; Sintering Density |
