Abstract We obtained Lu2O3 fibrous membrane, with robust flexibility and high tensile strength, by electrospinning a novel high lutetium content precursor. We observed the microstructure of the membrane and studied the mechanism of the heat-treated atmosphere and temperature on the mechanical properties of the membranes. The results showed that the Lu2O3 content in the precursor was 63%, and the decomposition temperature range of organic matter was wide. Heat treatment in nitrogen retained a small amount of residual carbon in the membrane. A small amount of carbon hindered the mass transfer process, increased the grain boundary density, inhibited the growth of crystal grains, and improved the tensile strength and flexibility of the fibrous membrane. The tensile strength of the Lu2O3 fibrous membrane was as high as 6.81 MPa after heat treatment at 1000°C for 2 h, which was significantly higher than the reported ceramic fibrous membrane.

中文翻译：

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气氛对Lu2O3纤维膜高抗拉强度和鲁棒柔韧性的影响

摘要 我们通过静电纺丝一种新型的高镥含量前驱体，获得了具有强大柔韧性和高拉伸强度的 Lu2O3 纤维膜。我们观察了膜的微观结构，研究了热处理气氛和温度对膜力学性能的影响机制。结果表明,前驱体中Lu2O3含量为63%,有机物分解温度范围较宽。在氮气中热处理保留了膜中的少量残留碳。少量的碳阻碍了传质过程，增加了晶界密度，抑制了晶粒的生长，提高了纤维膜的拉伸强度和柔韧性。Lu2O3纤维膜的拉伸强度高达6。