Temperature dependence of infrared emissivity of doped manganese oxides in different wavebands (3–5 and 8–14μm)

In situ temperature measurements in microwave-heated gas-solid catalytic systems. Detection of hot spots and solid-fluid temperature gradients in the ethylene epoxidation reaction

“…The strong dependence of J with temperature (T 4 ) implies that, in a target where there are large temperature variations, only those regions with the highest temperature will make a significant contribution to the radiation flux. The emissivity of a surface changes with temperature 26 , and its value must be precisely known to acquire accurate temperatures with a thermal camera. Incorrect emissivity values may lead to large temperature deviations, given the exponential dependency in the Stephan-Boltzmann's Law.…”

Thermochromic property of La0.8Sr0.2MnO3 thin-film material sputtered on quartz glass

“…The tunability of infrared emittance of this material between 173 and 373 K reaches to 0.37. Also the structure, infrared absorption and temperature dependence of normal emittance of bulk La 1−x A x MnO 3 (A = Sr and Ca) in 3-5 and 8-14 m were studied [4] but the fabrication process of the ceramic tile is inconvenient. As a result of this, variable-emittance radiator based on (La, Sr) MnO 3 thin films has been developed by Sol-Gel method [5].…”

Preparation and characteristics of thermal resistance polysiloxane/Al composite coatings with low infrared emissivity

“…As we know, coating exterior surface of the aircraft with low emissivity materials can greatly decrease the probability of being detected by infrared detector. In the past decade, several kinds of materials with low infrared emissivity, such as composite ceramic [1][2][3], silver and aluminum [4], thinfilms [5][6][7][8], bio-electret composite [9,10], and inorganic-organic composite coatings [11][12][13][14] have been developed. Especially, the inorganic-organic composite coatings, composed of hard and soft materials intertwined to provide both useful functionality and mechanical integrity [15][16][17][18][19][20], have received increasing attention.…”