Determination of dielectric properties of titanium carbide fabricated by microwave synthesis with Ti-bearing blast furnace slag

• 作者: Bing-guo Liu Guang-jun He Jin-hui Peng Li-bo Zhang Meng-yang Huang Peng Liu
• 来源期刊: 矿物冶金与材料学报
• 年，卷（期）: 2021,（1）
• 页码范围: 88-97
• 页数: 10页
• 语种: 英文

摘要

The preparation of functional material titanium carbide by the carbothermal reduction of Ti-bearing blast furnace slag with mi-crowave heating is an effective method for valuable metals recovery;it can alleviate the environmental pressure caused by slag stocking.The dynamic dielectric parameters of Ti-bearing blast furnace slag/pulverized coal mixture under high-temperature heating are measured by the cylindrical resonant cavity perturbation method.Combining the transient dipole and largeπbond delocalization polarization phenomena,the interaction mechanism of the microwave macroscopic non-thermal effect on the titanium carbide synthesis reaction was revealed.The material thickness range during microwave heating was optimized by the joint analysis of penetration depth and reflection loss,which is of great signi-ficance to the design of the microwave reactor for the carbothermal reduction of Ti-bearing blast furnace slag.