In this study, ceramics was prepared by slip casting (no pressure was used during shaping step) and atmospheric pressure sintering with low-melting point glass (LPG) powder as the binding material to facilitate the transformation of spodumene flotation tailings (SFTs) into ceramics at lower temperatures. The influence of sintering temperature and mass ratio of LPG on the mechanical properties (flexural strength and compressive strength) of ceramic materials was studied by orthogonal test. The results showed that when the mass ratio of LPG powder was higher than or equal to 20 wt% and the sintering temperature was higher than or equal to 550 °C, mutual adhesion between the sample particles was realised and consequently the ceramic materials could be prepared with good mechanical properties (the maximum flexural strength=19.55 MPa, the maximum compressive strength=42.25 MPa, average porosity=24.52%, average apparent density=1.66 g/cm³, and average water absorption=14.79%). The sintered ceramics were characterized by XRF, XRD, optical microscopy analysis, SEM, TGA-DSC and FT-IR. The formation of liquid phase at high temperature may lead to the mutual bonding between particles, which might be the main reason for the improvement of mechanical properties of ceramic materials. Overall, SFTs were successfully sintered at low temperature to prepare ceramic materials with good mechanical properties, which are crucial for energy conservation and environmental preservation.

在这项研究中，通过以低熔点玻璃 (LPG) 粉末为结合材料的泥浆浇铸（在成型步骤中不使用压力）和常压烧结制备陶瓷，以促进锂辉石浮选尾矿 (SFTs) 转化为陶瓷在较低温度下。通过正交试验研究了LPG的烧结温度和质量比对陶瓷材料力学性能（抗弯强度和抗压强度）的影响。结果表明，当LPG粉体质量比大于等于20 wt%，烧结温度大于等于550 ℃时，样品颗粒之间实现了相互粘附，从而可以制备陶瓷材料。具有良好的机械性能（最大抗弯强度=19.55 MPa，³，平均吸水率=14.79%）。通过XRF、XRD、光学显微镜分析、SEM、TGA-DSC和FT-IR对烧结陶瓷进行了表征。高温下液相的形成可能导致颗粒之间相互结合，这可能是陶瓷材料力学性能提高的主要原因。总体而言，SFTs在低温下成功烧结以制备具有良好机械性能的陶瓷材料，这对节能和环境保护至关重要。