A study of methods to enhance infrared emissivity of Molybdenum surfaces

Sr-doped lanthanum manganite (La1-xSrxMnO3) is characteristic of thermochromic, which can act as a smart thermal control material used in the variable-emittance devices. In the present study, La1-xSrxMnO3 thin films were prepared on MgO(100) substrates by pulsed laser deposition, and the effect of Sr-doping (x = 0 ~ 0.4) on the structure and infrared emissivity was investigated. Single-phased La1-xSrxMnO3 films with (100)-orientation were obtained, which showed a dense texture with smooth surface. The ratio of Mn4+/Mn3+ in the films was increased with increasing Sr doping, leading to the enhancement in double-exchange interaction and electrical conductivity. As a result, the phase transition from metal to insulator was observed with the increasing of test temperature. For the La0.8Sr0.2MnO3 thin film, a large value of emittance (De = 0.28) was obtained, indicating good variable-emittance by appropriate Sr doping.

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High-Precision and High-Resolution Measurements of Thermal Diffusivity and Infrared Emissivity of Water–Methanol Mixtures Using a Pyroelectric Thermal Wave Resonator Cavity: Frequency-Scan Approach

International Journal of Thermophysics ◽

10.1007/s10765-005-5581-7 ◽

2005 ◽

Vol 26 (3) ◽

pp. 837-854 ◽

Cited By ~ 26

Author(s):

A. Matvienko ◽

A. Mandelis

Keyword(s):

Thermal Diffusivity ◽

High Resolution ◽

High Precision ◽

Thermal Wave ◽

Infrared Emissivity ◽

Resonator Cavity ◽

Wave Resonator ◽

Frequency Scan

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Thermal infrared emissivity measurements under a simulated lunar environment: Application to the Diviner Lunar Radiometer Experiment

Journal of Geophysical Research Atmospheres ◽

10.1029/2011je003862 ◽

2012 ◽

Vol 117 (E12) ◽

pp. n/a-n/a ◽

Cited By ~ 24

Author(s):

Kerri L. Donaldson Hanna ◽

Michael B. Wyatt ◽

Ian R. Thomas ◽

Neil E. Bowles ◽

Benjamin T. Greenhagen ◽

...

Keyword(s):

Thermal Infrared ◽

Infrared Emissivity ◽

Lunar Environment ◽

Emissivity Measurements

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Polyesterification synthesis of amorphous aluminum phosphate thermal radiation material with high infrared emissivity

Materials Letters ◽

10.1016/j.matlet.2017.11.048 ◽

2018 ◽

Vol 213 ◽

pp. 335-337 ◽

Cited By ~ 8

Author(s):

Na Li ◽

Mingfeng Zhong ◽

Zhikui Xu ◽

Zhijie Zhang

Keyword(s):

Thermal Radiation ◽

Aluminum Phosphate ◽

Infrared Emissivity ◽

Radiation Material

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Novel Infrared Stealth Properties of Cotton Fabric with ZnO: (Al, In) Coating

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.936.1031 ◽

2014 ◽

Vol 936 ◽

pp. 1031-1034 ◽

Cited By ~ 1

Author(s):

Xi Li Yu ◽

Lin Ping Zhang ◽

Yi Zhong ◽

Hong Xu ◽

Zhi Ping Mao

Keyword(s):

Thin Film ◽

Crystalline Phase ◽

Sol Gel ◽

Infrared Emission ◽

Cotton Fabrics ◽

Dual Band ◽

Infrared Emissivity ◽

Measuring Instrument ◽

Coated Fabric ◽

Doped Zno

In this paper, we report a study on the infrared stealth properties of cotton fabrics with ZnO: (Al,In) coating. Al, In doped ZnO samples were prepared through sol-gel method. The crystalline phase of the ZnO: (Al, In) solids were determined by XRD. IR-2 Dual-Band Infrared Emissivity Measuring Instrument was used to test the infrared emissivity of the coated fabric. Infrared stealth effect of ZnO: (Al, In) coated fabric was measured using thermal infrared photospectrometry instrument. It was found that the ZnO: (Al, In) thin film has a low infrared emission in the range of 8 ~ 14μm wavelengths, and the addition of Al and In leaded to a better infrared stealth effect.

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