Study on spray drying process of Sm2Zr2O7 slurry for thermal spraying

Hongrui Hao; Yang Li; Qingmeng Zhang; Xiaoyun Song

doi:10.1117/12.2668252

6 March 2023 Study on spray drying process of Sm₂Zr₂O₇ slurry for thermal spraying

Hongrui Hao, Yang Li, Qingmeng Zhang, Xiaoyun Song

Proceedings Volume 12553, Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022); 125530D (2023) https://doi.org/10.1117/12.2668252
Event: 2022 4th International Conference on Optoelectronic Science and Materials (ICOSM2022), 2022, Henfei, China

Abstract

A new type of Sm₂Zr₂O₇ ceramic material has become a candidate material for thermal barrier coating because of its low thermal conductivity, high thermal expansion coefficient and good high temperature structure stability. In this paper, the effects of different process parameters on the morphology of ceramic powders were investigated. The spray drying technology was used to prepare Sm₂Zr₂O₇ agglomerated powder. The micro morphology of Sm₂Zr₂O₇ powder after granulation was observed by SEM. The effects of inlet temperature, pump creep rate on the characteristics of agglomerated powder were analyzed. At the same time, the effects of slurry properties on the micro characteristics of powder after granulation were discussed. The optimized Sm₂Zr₂O₇ spray granulation process was determined as inlet temperature 175 ℃, pump creep rate 30% .

Citation Download Citation

Hongrui Hao, Yang Li, Qingmeng Zhang, and Xiaoyun Song "Study on spray drying process of Sm₂Zr₂O₇ slurry for thermal spraying", Proc. SPIE 12553, Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022), 125530D (6 March 2023); https://doi.org/10.1117/12.2668252

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