| 舒焕烜,牟仁德,陆峰,王开军,朱道飞.Gd2O3-NiO 共掺对钇稳定氧化锆材料热物理性能的影响[J].装备环境工程,2016,13(3):57-62. SHU Huan-xuan,MU Ren-de,LU Feng,WANG Kai-jun,ZHU Dao-fei.Influence of Gd2O3-NiO Co-doping on Thermal Physical Properties of Zirconia-based Ceramic Materials[J].Equipment Environmental Engineering,2016,13(3):57-62. |
| Gd2O3-NiO 共掺对钇稳定氧化锆材料热物理性能的影响 |
| Influence of Gd2O3-NiO Co-doping on Thermal Physical Properties of Zirconia-based Ceramic Materials |
| 投稿时间：2016-02-13 修订日期：2016-06-15 |
| DOI：10.7643/ issn.1672-9242.2016.03.009 |
| 中文关键词: Gd2O3 NiO 固相合成 红外透过率 热导率 YSZ |
| 英文关键词:Gd2O3 NiO solid phase synthesis infrared transmittance thermal conductivity YSZ |
| 基金项目:国家高技术研究发展计划（863 计划） 项目（2015AA034403） |
|
|
| Author | Institution |
| SHU Huan-xuan | 1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology University, Kunming 650093, China; 2.Beijing Institute of Aeronautical Materials, Beijing 100095, China |
| MU Ren-de | Beijing Institute of Aeronautical Materials, Beijing 100095, China |
| LU Feng | Beijing Institute of Aeronautical Materials, Beijing 100095, China |
| WANG Kai-jun | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology University, Kunming 650093, China |
| ZHU Dao-fei | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology University, Kunming 650093, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究 Gd2O3-NiO 共掺对钇稳定氧化锆材料热物理性能的影响。 方法 采用高温固相反应法制得 Gd2O3-NiO 共掺 YSZ 陶瓷材料。分别利用 XRD、扫描电镜观察、激光导热仪、傅立叶红外光谱仪对陶瓷材料的晶体结构、微观结构、热扩散系数及红外透过率进行表征，并对其热导率进行分析。结果 Gd2O3-NiO 共掺 YSZ 后，陶瓷材料单斜相含量减少，室温至 1300 ℃的热导率相比 YSZ 降低，在 2.5~5 μm 波长范围内红外透过率降低。 结论 Gd2O3-NiO 共掺对 YSZ 陶瓷材料热导率的影响机理为掺杂 Gd2O3和 NiO 导致 YSZ 中单斜相(M)、四方相(T)和立方相(C)含量发生变化，同时 YSZ 晶格发生畸变。对 YSZ 辐射传热的影响机理为通过在 YSZ 中掺杂过渡金属元素 Ni 使陶瓷材料吸收特定波长的光，进而有效地降低在 2.5~5 μm 短波长的红外透过率，降低其高温下的红外辐射传热。 |
| 英文摘要: |
| Objective To study the influence of Gd2O3-NiO co-doping on thermal physical properties of zirconia-based ceramic materials. Methods Gd2O3-NiO co-doped YSZ(contain 3.5%Y2O3, mol fraction)(GN-YSZ)was prepared by solid phase synthesis method .The crystal structure and phase composition of the GN-YSZ were studied by XRD analysis. The microstructure was analyzed by SEM. The thermal diffusivities of ceramic materials were tested by laser-flash method. The infrared transmittance was studied by infrared transmittance instrument. Results The results showed that after Gd2O3-NiO co-doping of YSZ, the content of monoclinic phase(M) was decreased, the thermal conductivity in the temperature range of room temperature to 1300 ℃ was reduced, and the infrared transmittance of ceramics materials in the wavelength range of 2.5 μm~5 μm was also reduced. Conclusion The influencing mechanism of doping oxides on the thermal physical property of YSZ was that co-doping with Gd2O3 and NiO resulted in lattice distortion and content variation of monoclinic phase(M), tetragonal phase(T) and cubic phase(C) in YSZ. The influencing mechanism of the radioactive heat transfer was that doping transition metallic NiO led to an optical absorption at the particular wavelengths. That was why transition metallic elements such as Ni2+ site could effectively reduce the transmittance of GN-YSZ ceramics at short wavelengths, while reduce infrared radioactive heat transfer at high temperature. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
