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We present a suite of measurements and combined analyses of grain growth in SrTiO3 for oriented single crystals into polycrystals. The growth distance and standard deviation and the microstructure evolution along the single crystal–matrix interface are used to locally characterize the change in migration behavior as a function of temperature, time and interface orientation. The relative grain boundary...
The impact of the oxygen partial pressure on grain growth in high purity strontium titanate is evaluated by observing microstructures, the grain growth constant k and the relative mobility of strontium titanate. The microstructures indicate a reversible wetting transition between 1460°C and 1500°C. The wetting second phase is titania-rich and free from any detectable solutes. Exaggerated grain growth...
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