Composite Material with Improved Thermal Shock and Corrosion Properties for High-Temperature Applications in Metallurgy, Chemical Industry and Cement Industry

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This invention describes a multi-material composite specifically designed for high-temperature industrial applications, such as metallurgy, chemical, and cement industries. The composite features an outer shell made of corrosion-resistant ceramics and an electrically conductive inner core. The core is conductive at room temperature, allowing for efficient electrical heating and improved resistance to thermal shock, corrosion, and material creep, even when in direct contact with aggressive melts and gases.

Use CasesContent extracted from patent full text and abstract with AI.

• Liners, stoppers, and pouring nozzles for molten metal handling in steelworks and foundries
• Components in chemical reactors exposed to corrosive gases or molten substances
• Protective crucibles, stirrers, and burner tubes operating at high temperatures
• Pre-heatable distributing vessels for continuous casting processes
• High-temperature kiln and furnace linings in cement manufacturing

BenefitsContent extracted from patent full text and abstract with AI.

• Superior resistance to thermal shock, significantly reducing cracking or failure during rapid temperature changes
• Enhanced protection against corrosion and material creep under aggressive chemical or metallurgical conditions
• Ability to be electrically heated directly, removing the need for external gas burners and improving thermal control
• Improved operational safety and longer component service life, lowering maintenance and replacement costs
• Versatility in design thanks to compatibility with various manufacturing methods, including 3D printing and different casting/pressing techniques

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Patent Abstract

The invention relates to a material composite consisting of a fine-grained and coarse-grained ceramic with improved thermal shock, corrosion and creep properties directly in contact with aggressive melts and/or gases and of a fine-grained and coarse-grained electrically conductive inner core which is already electrically conductive at room temperature.