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3M Nextel™ 720 Composite Ceramic Fiber

 

Subcategory: Oxide, Silicon; Oxide, Aluminum; Oxide; Composite Fibers

Key Words: Alumina, Aluminum Oxide

Material Notes:
Chemical composition above is wt%. Filament diameter is 10-12 µm.

3M Nextel Ceramic Fibers 610, 650, and 720 are composite grade fibers. They have a refined crystal structure based on alpha-Al2O3 and do not contain glassy phases. This allows the fibers to retain their strength at high temperatures. 3M Nextel Fiber 720, an alpha-Al2O3 with SiO2 addition (forming alpha-Al2O3/mullite), has improved strength retention at temperature due to reduced grain boundary sliding. The SiO2 addition also help to 'pin' the grains and reduce grain growth when exposed to thermal aging.

Information provided by 3M Ceramic Textile and Composites.

Available Properties
  • Density
  • Particle Size
  • Specific Surface Area
  • Tensile Strength, Ultimate
  • Modulus of Elasticity
  • Dielectric Constant
  • CTE, linear 20°C
  • CTE, linear 250°C
  • CTE, linear 500°C
  • CTE, linear 1000°C
  • Melting Point
  • Refractive Index
  
Property Data

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