Hongjian HAO, Haiyan LI, Detian WAN, Yiwang BAO, Yueming LI. Enhanced Flexural Strength and Thermal Shock Resistance of Alumina Ceramics by Mullite/Alumina Pre-stressed Coating[J]. Journal of Inorganic Materials, 2022, 37(12): 1295
- Journal of Inorganic Materials
- Vol. 37, Issue 12, 1295 (2022)
. Schematic illustration of pre-stressed Al2O3
. Phase analyses of mullite-alumina coating materials fabricated with different mass fractions of quartz
. Flexural strength at room temperature of pre-stressed Al2O3 fabricated with different mass fractions of quartz
. Flexural strength of C15-A pre-stressed ceramics tested at different high temperatures
. Fracture section SEM images of pre-stressed alumina ((a) C10-A, (b) C25-A, (c) C15-A), (d) EDS analysis of C15-A
. Optical micrograph of the side of C30-A sample
. Fracture section SEM images of C30-A sample
. Theoretical relationship between residual compressive stress and substrate-to-coating thickness ratio in different pre- stressed aluminas
. Residual flexural strength of C15-A pre-stressed alumina after thermal shock at different temperatures
. Surface optical micrographs of ceramics after thermal shock
. Cross section SEM images of ceramic after thermal shock at 320 ℃
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Table 1. Calculation of residual stresses of coatings and substrates in pre-stressed Al2O3 fabricated with different mass fractions of quartz
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