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Chemicals: Continuous Inorganic Fiber

Tyranno Fiber®

Tyranno Fiber®

Developed using UBE's unique technology, Tyranno Fiber is a continuous ceramic fiber composed of silicon, titanium or zirconium, carbon, and oxygen.

Advanced composites reinforced by Tyranno Fiber are expected to play an important role in the environmental fields of the future, such as ultra high speed transportation, energy efficiency, CO2 and NOx reduction, and purification of exhaust fumes.

Reinforcement fibers for these applications require high temperature stability, high strength, and high reliability in extreme environments. Tyranno Fiber possesses excellent properties and is being utilized in many areas.

Tyranno Fiber® Tyrannohex® High-Temperature, High-Toughness Ceramics
  Tyrannohex®
High-Temperature,
High-Toughness Ceramics

Semi-Conductive Grades

Tyranno Fiber is essentially a semi-conductive material and its specific resistance can be controlled from 106 to 10-1 ohms-cm. In addition, the specific resistances of G-grade and H-grade fibers can be controlled within a ±10% tolerance.

Properties of Tyranno Fiber (Semi-Conductive Grades)

Property A C D F G H
Specific resistance (ohm-cm) 106 104 103 101 100 10-1
Fiber diameter (µm)   8.5, 11        
Number of filaments (fil./yarn)   1600,800        
Tex (g/1000m)   220(8.5µm,1600fil./yarn)
Tensile strength (GPa) 3.3 3.3 3.3 3.0 2.8 2.8
Tensile modulus (GPa) 170 170 170 170 180 180
Elongation at break (%) 1.9 1.9 1.9 1.8 1.6 1.6
Density (g/cm3) 2.29 2.35 2.35 2.40 2.43 2.43
Deviation of specific resistance in a roll of 
Tyranno Fiber Temperature dependence of the specific resistance of the Tyranno Fiber (G-grade) and the temperature
Deviation of specific resistance in a roll of
Tyranno Fiber
Temperature dependence of the specific resistance of the Tyranno Fiber (G-grade) and the temperature
Dielectric constants of Tyranno Fiber reinforced epoxy resin composite (10 GHz)
Dielectric constants of Tyranno Fiber reinforced epoxy resin composite (10 GHz)

High Temperature Grades

One of the great features of Tyranno Fiber is its high strength and high temperature stability. ZMI-grade fiber, which contains zirconium, offers drastically improved stability and oxidation resistance at high temperatures compared with ordinary Tyranno Fiber, which contains titanium. Tyranno Fiber SA is a polycrystalline SiC fiber containing aluminum. With heat resistance to at least 1,800°C, the SA-grade offers a lot of potential as a material for reinforcing next-generation composite materials.

Properties of Tyranno Fiber (High Temperature Grades)

Property S LoxM ZMI SA
Fiber diameter (µm) 8.5 11 11 10, 7.5
Number of filaments (fil./yarn) 1600 800 800 800, 1600
Tex (g/1000m) 220 200 200 170, 190
Tensile strength (GPa) 3.3 3.3 3.4 2.4
Tensile modulus (GPa) 170 180 195 380
Elongation at break (%) 1.9 1.8 1.7 0.7
Density (g/cm3) 2.35 2.48 2.48 3.10
Contents (wt.%) Si 50 55 56 67
  C 30 32 34 31
  O 18 11 9 <1
  Ti 2 2 -  
  Zr - - 1  
  AI - - - <2
Coefficient of thermal expansion (10-6/K) 3.1(RT-500°C) - 4.0(RT-1,000°C) 4.5(RT-1,000°C)
Thermal conductivity (W/m K) 1.0 1.4 2.5 65
Tyranno Fabric (SA-grade) Residual tensile strength of Tyranno Fiber after heat-treatment in argon for 1 hour
Tyranno Fabric (SA-grade) Residual tensile strength of Tyranno Fiber after heat-treatment in argon for 1 hour
Residual tensile strength of Tyranno Fiber grades in argon at 1,300°C Residual tensile strength of Tyranno Fiber grades in air at 1,000°C
Residual tensile strength of Tyranno Fiber grades in argon at 1,300°C Residual tensile strength of Tyranno Fiber grades in air at 1,000°C

Secondary Products

Tyranno Fiber can be supplied in various forms including fabric, chopped fibers, felt, and ceramic paper, etc.

Chopped Tyranno Fiber

Chopped Tyranno Fiber Residual tensile strength of chopped Tyranno Fiber grades
  Residual tensile strength of chopped Tyranno Fiber grades

Tyranno Felt

Tyranno Felt  

Tyranno Fiber Applications

Tyranno Fiber Applications

Products Inquiry Ube Industries, Ltd. Products Inquiry Form
Chemicals Company,
Polyimide and Specialty Products Div.
Tyranno Fiber Gr.

Phone : +81(3)5419-6188    Fax : +81(3)5419-6260

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