精品文档---下载后可任意编辑锂-钛-硅复合氧化物纳米助烧剂及其掺杂钛酸钡基陶瓷的制备的开题报告摘要近年来，随着钛酸钡基陶瓷在高温材料、压电和声电领域的广泛应用，对其烧结工艺的要求也越来越高。在烧结过程中，助烧剂的添加可以显著提高陶瓷致密化度、缩小晶粒尺寸、增强力学性能等。因此，本讨论将制备一种新型的锂-钛-硅复合氧化物纳米助烧剂，并将其应用于钛酸钡基陶瓷的制备中。首先，采纳水热法制备出纳米级的锂-钛-硅复合氧化物助烧剂。然后将其掺杂于钛酸钡基陶瓷粉末中，并通过干压成型和热处理工艺制备出钛酸钡基陶瓷材料。通过对材料的形貌、物相结构和物理性能等方面的表征，探究复合氧化物助烧剂对钛酸钡基陶瓷致密化度、抗压强度、介电性能等的影响机理。关键词：锂-钛-硅复合氧化物；助烧剂；钛酸钡基陶瓷；掺杂；性能讨论AbstractIn recent years, with the widespread application of barium titanate ceramics in high-temperature materials, piezoelectric and pyroelectric fields, the requirements for its sintering process are becoming higher and higher. In the sintering process, the addition of sintering aids can significantly improve the densification of ceramics, reduce the grain size, and enhance the mechanical properties. Therefore, this study will prepare a new type of lithium-titanium-silicon composite oxide nano sintering aid and apply it to the preparation of barium titanate ceramics.Firstly, nano-sized lithium-titanium-silicon composite oxide sintering aid will be prepared by hydrothermal method. Then, it will be doped into barium titanate ceramic powder, and barium titanate ceramics will be prepared by dry pressing and heat treatment process. Through the characterization of the morphology, crystal structure, and physical properties of the materials, the influence mechanism of the composite oxide sintering aid on the densification, compressive strength, dielectric properties, and other aspects of barium titanate ceramics will be explored.精品文档---下载后可任意编辑Keywords: lithium-titanium-silicon composite oxide; sintering aid; barium titanate ceramics; doping; performance study.
