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

Peng Liu; Li-bo Zhang; Bing-guo Liu; Guang-jun He; Jin-hui Peng; Meng-yang Huang

doi:10.1007/s12613-020-1985-4

Volume 28 Issue 1

Jan. 2021

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2021 > 28(1): 88-97

Peng Liu, Li-bo Zhang, Bing-guo Liu, Guang-jun He, Jin-hui Peng, and Meng-yang Huang, Determination of dielectric properties of titanium carbide fabricated by microwave synthesis with Ti-bearing blast furnace slag, Int. J. Miner. Metall. Mater., 28(2021), No. 1, pp. 88-97. https://doi.org/10.1007/s12613-020-1985-4

Cite this article as:

Peng Liu, Li-bo Zhang, Bing-guo Liu, Guang-jun He, Jin-hui Peng, and Meng-yang Huang, Determination of dielectric properties of titanium carbide fabricated by microwave synthesis with Ti-bearing blast furnace slag, Int. J. Miner. Metall. Mater., 28(2021), No. 1, pp. 88-97. https://doi.org/10.1007/s12613-020-1985-4

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Research Article

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

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Corresponding authors:
Bing-guo Liu E-mail: bingoliu@126.com

Guang-jun He E-mail: hegj9@126.com
Received: 24 October 2019; Revised: 8 January 2020; Accepted: 9 January 2020; Available online: 14 January 2020

Abstract

Abstract

The preparation of functional material titanium carbide by the carbothermal reduction of Ti-bearing blast furnace slag with microwave 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 large π bond 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 significance to the design of the microwave reactor for the carbothermal reduction of Ti-bearing blast furnace slag.
- titanium-bearing blast furnace slag;
- dielectric mechanism;
- penetration depth;
- reflection loss;
- microwave heating;
- efficiency

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