Influence of MnO₂ on Properties of ZrO₂-Al₂O₃-SiO₂ Infrared Radiation Materials

Abstract:

In this paper, the effect of MnO₂ addition the infrared emissivity on ZrO₂-Al₂O₃-SiO₂ low thermal conductivity materials was investigated. The phase and microscopic morphology of the samples with the heat treatment at different temperatures were characterized by XRD and SEM. The results show that the infrared emissivity of ZrO₂-Al₂O₃-SiO₂ materials increased nearly 7% to 0.911 by adding 10 wt% MnO₂. After heat treatment at different temperature, the main phase of ZrO₂-Al₂O₃-SiO₂ materials were t-ZrO₂ and mullite, ZrO₂-Al₂O₃-SiO₂ materials with MnO₂ addition were molten and the phase composition was t-ZrO₂, Al₂O₃, and m-ZrO₂.

• Periodical: Key Engineering Materials (Volume 591)
• Pages: 263-266
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.591.263
• Online since: November 2013
• Authors: Ming Hao Fang, Xin Min, Fan Wang, Zhao Hui Huang, Yang Ai Liu, Xiao Wen Wu, Chao Tang
• Keywords: Emissivity, Infrared Radiation, MnO₂, ZrO₂-Al₂O₃-SiO₂

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