| 학회 |
한국재료학회 |
| 학술대회 |
2005년 가을 (11/10 ~ 11/11, 한양대학교) |
| 권호 |
11권 2호 |
| 발표분야 |
전자재료 |
| 제목 |
크롬 치환된 Mn1.1Ni1.4Co0.5-xCrxO4 (0.07≤x≤0.35)의 미세구조 연구 |
| 초록 |
The as-sintered Mn1.1Ni1.4Co0.5O4 crystallized in the solid solution of cubic spinel Mn-Ni-Co oxides, along with a small amount of the cubic spinel Ni-rich phase, indicating a decomposition of the Ni-rich phase in the solid solution. The phase decomposition was likely to occur with the loss of oxygen in the ceramics during sintering. On the other hand, the Cr-substituted Mn1.1Ni1.4Co0.5-xCrxO4 (0.07≤x≤0.35) showed a single phase of cubic spinel Mn-Ni-Co-Cr oxides. No Ni-rich phase was detected in the Cr-substituted samples, indicating that the substituted Cr suppressed the decomposition in the oxides. The substituted Cr did not affect the crystalline structure and formed a solid solution with Mn-Ni-Co oxides. The grain size and density of the Mn1.1Ni1.4Co0.5-xCrxO4 samples decreased with an increase in Cr content. |
| 저자 |
I. H. Han1, J. Y. Kim2, H. S. Shin1, K. Park3
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| 소속 |
1Department of Advanced Materials Engineering, 2Sejong Univ., 3Hoseo Univ. |
| 키워드 |
Mn1.1Ni1.4Co0.5-xCrxO4; Microstructure; Spinel structure; Cr2O3; Phase decomposition
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| E-Mail |
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