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<p>The lanthanum-strontium-manganite (La<sub>09</sub>Sr<sub>01</sub>MnO<sub>3</sub>, LSMO) high-emissivity ceramic coatings are prepared via detonation spraying. The coatings exhibit a dense, lamellar microstructure and a thickness of 20-30 mkm. They demonstrate high thermal stability, withstanding 300 thermal cycles, and achieve an emissivity of 0.88 in the 3-7 mkm range at 450&#xa0;°C. The radiance of the coated surface significantly exceeds that of bare steel, with maximum enhancement at ~ 450&#xa0;°C. These results confirm the suitability of detonation-sprayed LSMO coatings for improving radiative heat transfer in high-temperature industrial applications.</p>

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Lanthanum-Strontium-Manganite-Based Ceramic Coatings with a High Emissivity Obtained by the Detonation Spraying

  • 期刊论文

  • 发表日期：

    2026年4月2日

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  • V. V. Sirota,
  • S. E. Savotchenko,
  • D. S. Prokhorenkov,
  • A. S. Churikov,
  • D. S. Podgornyi

摘要

The lanthanum-strontium-manganite (La09Sr01MnO3, LSMO) high-emissivity ceramic coatings are prepared via detonation spraying. The coatings exhibit a dense, lamellar microstructure and a thickness of 20-30 mkm. They demonstrate high thermal stability, withstanding 300 thermal cycles, and achieve an emissivity of 0.88 in the 3-7 mkm range at 450 °C. The radiance of the coated surface significantly exceeds that of bare steel, with maximum enhancement at ~ 450 °C. These results confirm the suitability of detonation-sprayed LSMO coatings for improving radiative heat transfer in high-temperature industrial applications.