In the fields of high-temperature industry and advanced materials, the performance limits of materials are constantly being challenged and redefined. As your trusted materials solutions partner, Shaanxi Kegu is committed to curating top-tier innovative products from around the globe. Today, we are proud to recommend a new generation of high-performance alumina short fiber series, manufactured by our strategic partners using internationally leading "sol-gel" technology. This series achieves industry-leading standards in high-temperature resistance, flexibility, purity, and design adaptability, aiming to provide you with superior and more reliable options for tackling extreme challenges.
Exceptional Performance, Defining New Industry Standards
Primarily composed of alumina and silica, this series encompasses five main models: Type 72-F, Type 72-M, Type 85, Type 95-M, and Type 95-N. The detailed core technical parameters are compared below to meet your precise selection needs for various extreme environments and complex processes:
Overview of Core Performance Parameters
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Product Type
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Type 72 - F
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Type 72 - M
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Type 85
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Type 95 - M
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Type 95 - N
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Chemical Composition (%)
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Al₂O₃: 72±2; SiO₂: 28±2
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Al₂O₃: 72±2; SiO₂: 28±2
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Al₂O₃: 85±2; SiO₂: 15±2
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>95% Al₂O₃; <5% others
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>95% Al₂O₃; <5% others
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Mineral Structure
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δ/γ-Al₂O₃
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Mullite
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Mullite + α-Al₂O₃
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γ-Al₂O₃
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α-Al₂O₃
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Classification Temp. (°C)
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1600
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1600
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1800
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1600
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1800
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Melting Point (°C)
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>1800
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>1800
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>1800
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>2000
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>2000
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Density (g/cm³)
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3.1
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3.1
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3.2
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2.8
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3.4
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Avg. Fiber Diameter (μm)
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5.5 - 7.5
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5.5 - 7.5
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4 - 7
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3 - 4
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3 - 4
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Impurity (%)
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<0.5
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<0.5
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<0.5
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<0.5
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<0.5
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Shot Content (≥45μm, %)
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0 - 2
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0 - 2
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0 - 2
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0 - 2
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0 - 2
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Monofilament Tensile Strength (MPa)
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≥1200
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≥1000
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--
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--
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--
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Monofilament Tensile Modulus (GPa)
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≥100
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≥100
|
--
|
--
|
--
|
|
Note: "--" indicates this item is not a core characterization parameter in the standard testing for this model. Please contact our technical team for specific information.
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The excellence of this series is reflected in multiple dimensions:
- Extreme Temperature Resistance & Stability: The products can operate long-term in high-temperature environments ranging from 1400°C to 1800°C, with melting points exceeding 2000°C. Even after 24-hour treatment in liquid nitrogen (-196°C), their strength shows no degradation.
- Excellent Chemical Resistance: The fibers maintain very high strength retention rates after exposure to acid and alkali solutions, ensuring durability in corrosive environments.
- High Purity & Strength: The products feature extremely low shot content. Some models boast monofilament tensile strengths as high as ≥1200 MPa, ensuring robust and reliable structure.
- Superior Flexibility & Insulation: The fibers exhibit excellent flexibility, resisting breakage during processing. Their electrical resistance stabilizes at high temperatures, making them ideal for high-temperature insulation and filtration materials.
- High Design Flexibility: By selecting different models, various structures from mullite to high-purity α-alumina can be obtained, meeting diverse application requirements.
Rigorous Verification, Undeniable Quality
Every product we curate requires stringent testing certification from the manufacturer. This fiber series has undergone comprehensive physicochemical performance tests and Scanning Electron Microscope (SEM) analysis. Relevant reports confirm that the fibers have uniform diameter, smooth surfaces, and are free of shot impurities, with key performance indicators meeting international advanced standards, providing you with reliable data assurance.
Broad Applications, Empowering Diverse Industries
Thanks to their comprehensive outstanding properties, this alumina short fiber series is becoming a key material for upgrading various high-end sectors:
- Automotive Industry: An ideal choice for three-way catalytic converter gaskets, engine insulation layers, and thermal protection materials for new energy battery housings.
- Industrial Sector:
- High-Temperature Insulation: Can be directly used as insulating and sealing filler material for high-temperature industrial furnaces and kilns.
- Filtration & Catalysis: Suitable for manufacturing high-temperature flue gas filter bags and catalyst supports.
- Composite Reinforcement: Serves as an excellent reinforcement for metal matrix and ceramic matrix composites, significantly enhancing material properties.
- Advanced Ceramics: Used in the production of high-performance alumina ceramic matrix composites.
Evolving with the Times, Creating Value Together
Shaanxi Kegu is more than just a materials supplier; we are your trusted technical partner and value conduit. We have deep expertise in specialty materials, focusing on curating and introducing world-leading high-performance materials solutions for industries including industrial manufacturing, new energy, automotive, and advanced material composites. With our professional application support team and mature supply chain system, we aim to provide you with full-process services from product selection and application consulting to logistics delivery.
Visit our independent website hitech-ceram.com to learn more about product details, technical parameters, and application cases. Or, contact our sales and technical team directly for tailored solutions.
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