阿拉丁SCI论文搜索工具

Optical Materials Express · 2017 ·Vol. 7 ·期 8 ·3003-3010 · IF 2.591

Ratiometric temperature sensing based on non-thermal coupling levels in BaZrO3: Yb3+/Er3+ ceramics

Hui Li,Yundong Zhang,Lin Shao,ZinMaung Htwe,Pin Yuan

High sensing sensitivity and accuracy is valuable for optical temperature sensors in practical applications. Er3+/Yb3+ co-doped BaZrO3 ceramics were prepared by the dry pressing method. The upconversion luminescence of Er3+/Yb3+ co-doped BaZrO3 ceramics was studied at a temperature range from 300 to 500 K under different pump power. The ratio of non-thermal coupling levels of 4S3/2, 4I9/2→4I15/2 (I546/I875), and 4F9/2, 4I9/2→4I15/2 (I658/I875) show a linear relationship as the temperature increased. The maximum relative sensitivity was estimated to be 1.39% K−1 at 500 K under 90 mW pump power. The result indicated that the BaZrO3:Er3+/Yb3+ ceramic is a promising candidate for high temperature sensing applications.

CAS / MDL: 10022-31-8 10031-51-3 35725-34-9

研究领域: 材料科学 · 光学

✓ 已验证产品关联 DOI 高影响因子

查看原文查看 PubMed

JOURNAL OF THE AMERICAN CERAMIC SOCIETY · 2024 · IF 3.5

Sintering-resistant porous BaZrO3 ceramics using a particle-stabilized foam method for thermal insulation applications

Bin Liu,Jie Fan,Hongqiang Nian,Yiran Li,Huimin Xiang,Yanchun Zhou

Sintering and phase transitions of materials in current large-area thermal insulation systems are critical problems for hypersonic vehicles. Searching for thermal insulation materials with good structure stability, thermal stability, and superior insulation performance is urgent for the development of these vehicles. Herein, we reported a novel porous BaZrO 3 ceramic fabricated by a particle-stabilized foam method. By controlling the sintering temperature, the porosity (92.96%–94.62%), thermal conductivity (0.088–0.193 W/(m·K)), and strength (0.30–1.31 MPa) of the porous ceramics are tunable. Most importantly, these porous BaZrO 3 ceramics exhibit excellent sintering resistance. After being heat treated at 1300°C for 6 h, the shrinkage of porous BaZrO 3 ceramics is nearly 0. The shrinkage of the samples heat-treated even at 1600°C is still lower than 3%, demonstrating outstanding high-temperature structure stability. Our results demonstrate that porous BaZrO 3 ceramics are promising candidates for high-temperature thermal insulation applications.

CAS / MDL: 513-77-9 1314-23-4

研究领域: 材料科学 · 航空航天工程

✓ 已验证产品关联 DOI 高影响因子

查看原文查看 PubMed

查找使用阿拉丁产品的科研文献

与阿拉丁产品相关的已发表科研成果

热门产品

Ratiometric temperature sensing based on non-thermal coupling levels in BaZrO3: Yb3+/Er3+ ceramics

Sintering-resistant porous BaZrO3 ceramics using a particle-stabilized foam method for thermal insulation applications