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Home > High-Performance Alumina Fibers & Products > D. Polycrystalline Alumina Fibre Series
Polycrystalline Alumina Fibre
Polycrystalline Alumina Fibre Polycrystalline Alumina Fibre Polycrystalline Alumina Fibre Polycrystalline Alumina Fibre Polycrystalline Alumina Fibre

Polycrystalline Alumina Fibre

Item No.: AFIBRE-004
Based on differences in alumina content and crystal phase, our product models are categorized as: Type 72-F, Type 72-M, Type 95-M, and Type 95-N.
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Description

01 / PRODUCT DESCRIPTION

Polycrystalline alumina short fibers are primarily composed of alumina and silica. They are manufactured using the internationally advanced "sol-gel" preparation process. The product exhibits excellent flexibility, as well as outstanding fire resistance and thermal insulation properties, with performance indicators at the leading international level.

Based on differences in alumina content and crystal phase, our product models are categorized as: Type 72-F, Type 72-M, Type 95-M, and Type 95-N.

02 / TABLE OF PRODUCT PERFORMANCE PARAMETERS

Performance Type 72-F Type 72-M Type 95-M Type 95-N
Chemical composition (%) 72-75:25-28 72-75:25-28 > 95: < 5 > 95: < 5
Mineral structure δ-Al₂O₃ or γ-Al₂O₃ Mullite γ-Al₂O₃ α-Al₂O₃
Classification temperature (℃) 1600 1600 1600 1800
Molten point (℃) > 1800 > 1800 > 2000 > 2000
Density (g/cm³) 3.1 3.1 2.8 3.4
Average fibre diameter (μm) 5.5-7.5 5.5-7.5 3-5 3-5
Impurity (%) < 0.5 < 0.5 < 0.5 < 0.5
Shot content (≥45μm) (%) 0-2 0-2 0-2 0-2
Monofilament tensile strength (MPa) ≥1200 ≥1000 —— ——
Monofilament tensile modulus (GPa) ≥100 ≥100 —— ——

03 / PRODUCT CHARACTERITICS

  • Excellent resistance to both high and low temperatures
  • Acid and alkali resistant
  • Slag-free (no shot content)
  • Outstanding electrical properties and insulation performance
  • Superior flexibility
  • Highly customizable for design applications

04 / PRODUCT APPLICATION

  • Raw materials for fiber-based products (such as blankets, felts, papers, and shaped components)
    Catalyst carrier materials
  • High-temperature filtration materials
  • Reinforcements for composite materials, including metal matrix, ceramic matrix, and resin matrix
  • Support mat materials for three-way catalytic converters
  • Thermal insulation materials for the automotive industry
  • Insulating and filling materials for high-temperature kilns and furnaces

Review
Daniel Zhou
Mr. Zhou