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Thermomechanical properties of calcium series perovskite-type oxides

机译:钙系钙钛矿型氧化物的热机械性质

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摘要

The thermomechanical properties of polycrystalline samples of CaTiO_3, CaZrO_3, and CaHfO_3 were studied. The thermal expansions were measured using a dilatometer in the temperature range from room temperature to 1273 K, and the thermal expansion coefficients were calculated from the slope of the thermal expansion curves. The longitudinal and shear sound velocities as well as the micro-hardness were measured at room temperature. The elastic moduli and the Debye temperature were evaluated from the measured sound velocities. The relationships between these properties of the calcium series perovskite-type oxides were studied.
机译:研究了CaTiO_3,CaZrO_3和CaHfO_3的多晶样品的热机械性能。使用膨胀计在从室温到1273 K的温度范围内测量热膨胀,并且根据热膨胀曲线的斜率计算热膨胀系数。在室温下测量纵向和切向声速以及显微硬度。根据测得的声速评估弹性模量和德拜温度。研究了钙系钙钛矿型氧化物的这些性质之间的关系。

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