【摘要】 为克服传统陶瓷微球制备方法在大规模生产与高性能材料应用中的局限性，本研究基于相图设计，通过喷雾造粒和射频等离子熔融相结合的方法，成功制备了不同配比的氧化铝-氧化镧（Al₂O₃-La₂O₃）二元透明陶瓷微球。对不同配比的Al₂O₃-La₂O₃二元透明陶瓷微球的化学组成、形貌、微观结构和机械性能进行了研究。结果表明，所得Al₂O₃-La₂O₃二元透明陶瓷微球的主晶相为LaAlO₃和LaAl₁₁O₁₈,且表现出了较高的机械性能，其中80.0Al₂O₃-20.0La₂O₃组分微球的维氏硬度为21.20 GPa,弹性模量为192 GPa,高于其他不同成分的铝酸盐玻璃陶瓷。更多还原

【Abstract】 In order to overcome the limitations of traditional ceramic microspheres preparation methods in large-scale production and high-performance material applications, this study successfully prepared alumina-lanthanum oxide（Al₂O₃-La₂O₃） binary transparent ceramic microspheres with different proportion by spray granulation and radio frequency plasma melting based on phase diagram design. The chemical composition, morphology, microstructure and mechanical properties of Al₂O₃-La₂O₃ binary transparent ceramic microspheres with different proportion were studied. The results show that the main crystalline phases of the obtained Al₂O₃-La₂O₃ binary transparent ceramic microspheres are LaAlO₃ and LaAl₁₁O₁₈, and exhibit high mechanical properties. The Vickers hardness and elastic modulus of 80.0Al₂O₃-20.0La₂O₃ microspheres are 21.20 and 192 GPa, respectively, which are higher than those of other aluminate glass ceramics with different compositions.更多还原