涂料型La1-xSrxMnO3智能热控涂层的研究

doi:10.3724/SP.J.1077.2012.00245

无机材料学报 ›› 2012, Vol. 27 ›› Issue (3): 245-248.DOI: 10.3724/SP.J.1077.2012.00245 CSTR: 32189.14.SP.J.1077.2012.00245

涂料型La_1-xSr_xMnO₃智能热控涂层的研究

郑勤^1,2, 江伟辉¹, 于云², 曹韫真², 于洋², 米乐², 宋力昕²

(1. 景德镇陶瓷学院, 景德镇333001; 2. 中国科学院上海硅酸盐研究所, 特种无机涂层重点实验室, 上海200050)

收稿日期:2011-03-18 修回日期:2011-06-01 出版日期:2012-03-20 网络出版日期:2012-02-16
作者简介:郑勤(1986-), 女, 硕士研究生. E-mail: zhengqin@mail.sic.ac.cn
基金资助:
上海市自然科学基金(10ZR1434100); 上海市重大基础研究项目(09DJ1400200)

Research of Painting-type La_1-xSr_xMnO₃ Smart Thermal Control Coating

ZHENG Qin^{1, 2}, JIANG Wei-Hui¹, YU Yun², CAO Yun-Zhen², YU Yang², MI Le², SONG Li-Xin²

(1. Jingdezhen Ceramic Institute, Jingdezhen 333001, China; 2. Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences, Shanghai 200050, China)

Received:2011-03-18 Revised:2011-06-01 Published:2012-03-20 Online:2012-02-16
About author:ZHENG Qin. E-mail: zhengqin@mail.sic.ac.cn
Supported by:
Natural Science Foundation of Shanghai Municipality (10ZR1434100); Key Fundamental Research Project of Shanghai Municipality (09DJ1400200)

摘要/Abstract

摘要： 以固相反应法制备了高纯度La_0.8Sr_0.2MnO₃粉体, 并以其为基料, 磷酸二氢铝为粘结剂, 采用涂覆工艺在铝基片上制备了涂料型La_0.8Sr_0.2MnO₃热控涂层. 采用XRD、EDS对La_0.8Sr_0.2MnO₃粉体的成分进行了表征, 用稳态卡计法测量了涂层在-100~100℃温度区间内热辐射率随温度的变化, 并测量了涂层的太阳吸收比. 研究结果表明: 粉体合成过程中, 经过1200℃三次热处理制备的La_0.8Sr_0.2MnO₃粉体纯度高, 合成的粉体具有均匀的微米级粒径尺寸. 通过适当调整浆料中La_0.8Sr_0.2MnO₃粉体所占质量百分比, 获得辐射率变化范围大于0.3的热控涂层, 该性能与采用烧结工艺制备的La_0.8Sr_0.2MnO₃陶瓷片材料在变温条件下的辐射率变化范围接近. 该涂层在航天器热控技术中具有潜在的应用前景.

关键词: La_0.8Sr_0.2MnO₃, 智能热控涂层, 固相反应法

Abstract: La_0.8Sr_0.2MnO₃ smart thermal control coating was obtained by coating technology using La_0.8Sr_0.2MnO₃ powder as base material and Al(H₂PO₄)₃ as binder, respectively. The La_0.8Sr_0.2MnO₃ powders were prepared by solid state reaction. La_0.8Sr_0.2MnO₃ powders were characterized by XRD and EDS. The variable thermal emittance of La_0.8Sr_0.2MnO₃ thermal control coating was measured at the temperature range of -100℃ to 100℃ by the steady-state emissometer. In addition, the solar absorptance of as-prepared coating was surveyed. The results showed that homogeneous, micro-sized La_0.8Sr_0.2MnO₃ particle can be obtained through heat treatment at 1200℃ for three times. The variation of the thermal emittance from -100℃ to 100℃ of as-prepared coating by coating technology could be more than 0.3, which is close to that of La_0.8Sr_0.2MnO₃ ceramic tile. This kind of smart thermal control coating is a promising candidate material in satellite for active thermal control technology.

Key words: La_0.8Sr_0.2MnO₃, smart thermal control coating, solid state reaction

中图分类号:

TQ174

郑勤, 江伟辉, 于云, 曹韫真, 于洋, 米乐, 宋力昕. 涂料型La_1-xSr_xMnO₃智能热控涂层的研究[J]. 无机材料学报, 2012, 27(3): 245-248.

ZHENG Qin, JIANG Wei-Hui, YU Yun, CAO Yun-Zhen, YU Yang, MI Le, SONG Li-Xin. Research of Painting-type La_1-xSr_xMnO₃ Smart Thermal Control Coating[J]. Journal of Inorganic Materials, 2012, 27(3): 245-248.

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涂料型La_1-xSr_xMnO₃智能热控涂层的研究

Research of Painting-type La_1-xSr_xMnO₃ Smart Thermal Control Coating

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