Ca2＋、Y3＋共掺杂 CeO2对其发射率性能影响

曾祥雄; 徐国跃; 刘宁; 李卫; 孟雪; 尤玲丽

红外技术, 2017, 39 (1): 27, 网络出版: 2017-03-29

Ca^2＋、Y^3＋共掺杂 CeO₂对其发射率性能影响

Effects of the Infrared Emissivity of CeO₂ Co-doping with Ca^2＋and Y^3＋

论文大纲

曾祥雄 ^1,2,*徐国跃 ^1,2刘宁 ^1,2李卫 ^1,2孟雪 ^1,2尤玲丽 ^1,2

作者单位

¹ 南京航空航天大学材料科学与技术学院, 江苏南京 210016

² 江苏省先进无机功能复合材料协同创新中心, 江苏南京 210016

红外发射率共掺杂共沉淀法沉淀剂 γ射线辐照 infrared emissivity co-doping co-precipitation precipitator Gamma irradiation

摘要

本文通过共沉淀法, 以草酸为沉淀剂, Ca2＋、Y3＋共掺杂 CeO2来降低其高温下红外发射率, 并且 Ce0.8Y0.15Ca0.05O2-δ粉体发射率最低, 最小值为 0.271。再用两种不同沉淀剂 KOH及 NH4HCO3分别合成 Ce0.8Y0.15Ca0.05O2-δ粉体, 所得结果可知, KOH为沉淀剂所合成的 Ce0.8Y0.15Ca0.05O2-δ粉体发射率最低, 最低值为 0.223。通过γ射线辐照处理 Ce0.8Y0.15Ca0.05O2-δ粉体, 可使其最低发射率由 0.271降至 0.187。

Abstract

In this paper, oxalate co-precipitation method is used to reduce the infrared emissivity under high temperature of CeO2 co-doping with Ca2＋ and Y3＋ . The synthetic powder that has the lowest infrared emissivity is Ce0.8Y0.15Ca0.05O2-δ, and the lowest infrared emissivity is 0.271. In order to effectively reduce the infrared emissivity of Ce0.8Y0.15Ca0.05O2-δ, the oxalate is changed to KOH. Then, the lowest infrared emissivity of Ce0.8Y0.15Ca0.05O2-δ is reduced to 0.223. Moreover, the pretreatment of Gamma irradiation is added to the synthetic powder Ce0.8Y0.15Ca0.05O2-δ. The lowest infrared emissivity can be reduced from 0.271 to 0.187 by Gamma irradiation.

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曾祥雄, 徐国跃, 刘宁, 李卫, 孟雪, 尤玲丽. Ca^2＋、Y^3＋共掺杂 CeO₂对其发射率性能影响[J]. 红外技术, 2017, 39(1): 27. ZENG Xiangxiong, XU Guoyue, LIU Ning, LI Wei, MENG Xue, YOU Lingli. Effects of the Infrared Emissivity of CeO₂ Co-doping with Ca^2＋and Y^3＋[J]. Infrared Technology, 2017, 39(1): 27.

Ca^2＋、Y^3＋共掺杂 CeO₂对其发射率性能影响

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