The composite coating shows excellent thermal shock resistance.
The La0.8Ce0.2MnO3 coating is shown to have excellent temperature shock resistance and thermo-chemical stability.
The composite shows higher thermal conductivity (25 1200 °C) and excellent thermal shock resistance at ΔT up to 550 °C.
Aluminium titanate (Al2TiO5) is a promising engineering material because of its low thermal expansion coefficient, excellent thermal shock resistance, good refractoriness and non-wetting with most metals.
And no cracks were observed on glaze surface after heat exchange three times from 220 °C to 25 °C, presenting excellent thermal shock resistance.
The weight loss rate of the coated composites was less than 1.3% after 50 h at 1500 °C, and coating represented excellent thermal shock resistance at 1500 °C.
These materials have good thermal and electrical conductivity, low density, high strength and Young's modulus, excellent thermal shock resistance, high chemical resistance, relatively low thermal expansion coefficient, and good machinability [1 3].
Cordierite ceramic filters have been shown a potential candidate for a high temperature dust collection, owing to its very low thermal expansion coefficient characteristic as an attribute of excellent thermal shock resistance.
Thermal cycling tests showed that the coating with a segmentation crack density of approximately 3.6 mm−1 had a lifetime of more than 1700 cycles at 1238 °C (surface)/938 °C (bond coat), indicative of excellent thermal shock resistance.
