The role of TiB2 particles in the creep and penetrating resistance of graphite-based composite

Wang, Zengjie; Li, Haipeng; Zhang, Cheng; Xue, Junmin; Liu, Xuan; Li, Xiang; He, Dingyong

doi:10.1016/j.ceramint.2021.01.054

Cited by 14 publications

(2 citation statements)

References 22 publications

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“…The relative density of the TiB 2 -SiC composite increased with SiC concentration, while the porosity of the specimen was zero when SiC concentration in the cathode was 30 wt%. Wang et al 122 compared the creep behaviour on pristine graphite and composite TiB 2 -graphite (30 wt% TiB 2 , 50 wt% graphite, and 20 wt% binding agents) composite cathodes after the cathodes were used in the electrolysis process in Na 3 AlF 6 -KF (5 wt%)-LiF (5 wt%)-Al 2 O 3 (8 wt%) with cathode current density of 0.5 A cm −2 at 960 °C. TiB 2 /C composite showed lower porosity, better aluminium wettability and excellent creep resistance compared to graphite.…”

Section: Tib 2 Based Cathodesmentioning

confidence: 99%

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Padamata

Singh

Haarberg

et al. 2023

J. Electrochem. Soc.

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Due to environmental and economic concerns, carbon-free aluminium production has been an ultimate goal for aluminium industries. For the past few decades, a considerable amount of research has been conducted to find an inert anode material that could replace the consumable carbon anodes for aluminium electrolysis. Anodic materials such as metals, ceramics, and cermets have been studied extensively. All these anode materials have their advantages and disadvantages. However, metal alloys have proven effective because of their resistance to high-temperature corrosion and their ability to produce a protective oxide layer. For a successful adaptation of metallic anodes into the aluminium electrolysis cell, an electrolyte with a low operating temperature and high alumina solubility with good electrical conductivity is required. A wettable cathode with a shorter anode-to-cathode distance is preferred to compete with the Hall-Héroult process in terms of energy requirements. This review discusses the research progress on inert anodes, wettable cathodes, and electrolytes.

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Section: Tib 2 Based Cathodesmentioning

confidence: 99%

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Padamata

Singh

Haarberg

et al. 2023

J. Electrochem. Soc.

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show abstract

“…The relative density of the TiB 2 -SiC composite increased with SiC concentration, while the porosity of the specimen was zero when SiC concentration in the cathode was 30 wt%. Wang et al (35) compared the creep behaviour on pristine graphite and composite TiB 2 -graphite (30 wt% TiB 2 , 50 wt% graphite, and 20 wt% binding agents) composite cathodes after the cathodes were used in the electrolysis process in Na 3 AlF 6 -KF (5 wt%)-LiF (5 wt%)-Al 2 O 3 (8 wt%) with cathode current density of 0.5 A cm -2 at 960°C. TiB 2 /C composite showed lower porosity, better aluminium wettability and excellent creep resistance compared to graphite.…”

Section: Tib 2 Cathodesmentioning

confidence: 99%

Primary Production of Aluminium and Its Alloys in Molten Salts with Oxygen Evolving Anodes: Overview

Padamata¹,

Singh²,

Haarberg³

et al. 2022

ECS Trans.

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Due to environmental and economic concerns, carbon-free aluminium production has been an ultimate target for aluminium industries. For the last few decades, a considerable amount of research has been conducted to find a suitable inert anode that could replace the consumable carbon anodes for aluminium electrolysis. Material types such as metals, ceramics and cermets have been studied extensively. All the anode materials have their advantages and disadvantages. However, metallic alloys have been considered attractive anode material candidates due to their high electrical conductivity, thermal stability and easy fabrication and machining properties. For a successful adaptation of metallic anodes into the aluminium electrolysis cell, an electrolyte with a low-operating temperature and high alumina solubility is required. Another significant component of the carbon-free aluminium electrolysis cell is a wettable cathode. This overview discusses the research progress on inert anodes, wettable cathodes and electrolytes.

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Wettable TiB2 Cathode for Aluminum Electrolysis: A Review

Padamata

Singh

Haarberg

et al. 2022

J. Sustain. Metall.

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Titanium diboride (TiB2) is considered a promising material for wettable cathodes in aluminum electrolysis. The demand for wettable cathodes is associated with the development of inert anode technologies to eliminate CO2 emissions caused by the conventional aluminum reduction process. Titanium diboride has been given special attention due to its superior properties, such as high wettability, good electrical conductivity, wear resistance, and excellent chemical stability. In this paper, we discuss different synthesis techniques used for the preparation of TiB2 cathode material. The main methods are sintering, electrodeposition, and plasma spraying. Electrodeposition is considered to be the most reliable low-cost method for TiB2 preparation. The vertical anode–cathode distance can be reduced by introducing wetted TiB2 cathodes, through which specific energy consumption can be reduced significantly. For a longer lifetime, the TiB2 cathodes should be resistant to electrolyte penetration. Further research should be conducted to understand the electrochemical behavior of TiB2 in low-temperature electrolytes. Graphical Abstract

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The role of TiB2 particles in the creep and penetrating resistance of graphite-based composite

Cited by 14 publications

References 22 publications

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Primary Production of Aluminium and Its Alloys in Molten Salts with Oxygen Evolving Anodes: Overview

Wettable TiB2 Cathode for Aluminum Electrolysis: A Review

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