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A platform for research: civil engineering, architecture and urbanism
ORTHOPHOSPHATE THERMAL BARRIER COATING MATERIAL WITH HIGH COEFFICIENT OF THERMAL EXPANSION AND PREPARATION METHOD THEREOF
The present disclosure relates to an orthophosphate thermal barrier coating material with high coefficient of thermal expansion and a preparation method thereof. ReM3P3O12 series ceramics with an eulytite crystal structure are prepared by a high-temperature solid-phase reaction for the first time. The ReM3P3O12 ceramic belongs to a −43 m space group of a cubic crystal system, which not only has a higher melting point and excellent high-temperature phase stability, but also has a lower thermal conductivity and a suitable coefficient of thermal expansion. It can effectively alleviate the stress caused by the mismatch of the coefficient of thermal expansion of the base material and the ceramic layer, so as to meet the requirements of thermal insulation and high-temperature oxidation and corrosion resistance of the hot end parts in long-term service, which has application prospects in the field of thermal barrier coatings.
ORTHOPHOSPHATE THERMAL BARRIER COATING MATERIAL WITH HIGH COEFFICIENT OF THERMAL EXPANSION AND PREPARATION METHOD THEREOF
The present disclosure relates to an orthophosphate thermal barrier coating material with high coefficient of thermal expansion and a preparation method thereof. ReM3P3O12 series ceramics with an eulytite crystal structure are prepared by a high-temperature solid-phase reaction for the first time. The ReM3P3O12 ceramic belongs to a −43 m space group of a cubic crystal system, which not only has a higher melting point and excellent high-temperature phase stability, but also has a lower thermal conductivity and a suitable coefficient of thermal expansion. It can effectively alleviate the stress caused by the mismatch of the coefficient of thermal expansion of the base material and the ceramic layer, so as to meet the requirements of thermal insulation and high-temperature oxidation and corrosion resistance of the hot end parts in long-term service, which has application prospects in the field of thermal barrier coatings.
ORTHOPHOSPHATE THERMAL BARRIER COATING MATERIAL WITH HIGH COEFFICIENT OF THERMAL EXPANSION AND PREPARATION METHOD THEREOF
YU FAPENG (author) / WU GUANGDA (author) / FAN MENGDI (author) / CHEN TINGWEI (author) / CHENG XIUFENG (author) / ZHAO XIAN (author)
2022-09-29
Patent
Electronic Resource
English
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