Ultra-high-temperature Sintering Furnaces Tailored to Meet Core Requirements Across Diverse Sectors
Release time:
2026-01-14
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Abstract
Ultra-high-temperature sintering furnaces are primarily suited to materials characterised by high melting points, high-performance inorganic non-metallic materials, and refractory metallic materials. The core focus lies within the high-end materials sector, meeting material performance requirements under extreme operating conditions. The principal materials compatible with this technology encompass three major categories: advanced ceramics, refractory metals and their compounds, and carbon-based composites. These materials generally exhibit properties such as high melting points, high hardness, high-temperature resistance, and corrosion resistance. Traditional sintering equipment struggles to achieve dense forming, necessitating reliance on the extreme temperature environment and precise temperature control capabilities of ultra-high-temperature sintering furnaces. Ensuring material structural integrity and performance compliance constitutes the core equipment-material compatibility system for the industrialisation of high-end materials.
Ultra-high-temperature sintering furnaces are highly specialised for specific material types, catering to core requirements across diverse sectors. For instance, advanced ceramics encompass silicon carbide (SiC), silicon nitride (Si₃N₄), zirconium oxide (ZrO₂), and aluminium oxide (Al₂O₃). Among these, SiC and Si₃N₄ require sintering at 1800–2200°C for aerospace structural components and semiconductor devices. Refractory metals and their compounds include tungsten (W), molybdenum (Mo), tantalum (Ta), and tungsten carbide (WC). Tungsten and molybdenum necessitate sintering above 2000°C for electron emitters and high-temperature moulds. Carbon-based composites such as graphite fibres and carbon fibre-reinforced carbon composites (C/C composites) require ultra-high-temperature graphitisation sintering at 2200–3000°C. These are suitable for aerospace thermal protection systems and high-end brake discs.
Moreover, ultra-high-temperature sintering furnaces are also adapted for specialised functional materials and novel composite materials, supporting technological breakthroughs in high-end industries. Specialised functional materials include high-temperature superconductors, ceramic-based superconductors, and high-temperature resistant materials for the nuclear industry, which require ultra-high-temperature environments to achieve crystal structure optimisation and performance activation. Novel composite materials, such as SiC particle-reinforced metal matrix composites and refractory metal matrix composites, utilise ultra-high-temperature sintering to achieve uniform dispersion of reinforcing phases, thereby enhancing the materials' comprehensive mechanical properties. These materials find extensive application in strategic sectors including aerospace, electronics, new energy, and nuclear industries. By precisely tailoring to material characteristics, ultra-high-temperature sintering furnaces achieve material densification and high performance, driving the development of advanced materials towards lightweighting, extreme conditions, and functionalisation. This provides essential support for achieving self-reliance and control over core materials in critical domains.
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Zhuzhou Chi Carbon Automation Equipment Co., Ltd
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