Silicon Fiber Products

 

The World's Premier Silicon Carbide (SiC) Fibers

SiC Ceramic Fibers are Used in Space, Aerospace and Power Generation High Temperature Structural Composites - Hot Gas Flow Components and Survivability Applications

   

NicalonTM SiC Fiber

    

SylramicTM SiC Fiber
   
  • Exclusive North American Distributor for Nippon Carbon Co., Ltd. (NCK)
  • Qualified Material for Multiple Military Platforms
  • In Qualification for Additional Platforms
  • Demonstrated on Large Land Based Gas Turbine Engines

Nicalon
Hi-Nicalon
Hi-Nicalon Type S

  • COIC is Owner and Manufacturer - Acquired All Rights from Dow Corning Corporation
  • Program with Airforce and NASA to Demonstrate Equivalency to Dow Corning Product
  • Preferred SiC Fiber for HT Creep / Endurance Requirements by NASA, Airforce and Others
  • Now Commercially Available!

Sylramic

   
  Si-C-O Fiber Si-C Low O Fiber SiC Fiber
NCK NCK NCK COIC
Property Units CG NicalonTM HVR NicalonTM Hi-NicalonTM Hi-NicalonTM Type S SylramicTM
Fiber Denier   1800 1800 1800 1800 1600
Density g/cc 2.55 2.32 2.74 3.1 3.1
Composition SI:C:O wt% 57:32:12 57:32:12 62:37:0.5 69:31:0.2  
C/SI atmoic ratio     1.39 1.05  
Filaments per tow 500 500 500 500 800
Filaments Dia um 14 14 14 12 10
Tensile Strength GPa 3.0 2.8 2.8 2.6 2.6
Tensile Modulus GPa 210 180 270 420 420
Volume Resistivity ohm-cm 10^3 >10^6 1.4 0.1  
Dielectric Const.   9.2 6.4      
Loss Factor   1.0 0.05      
CTE (25-500C) ppm 3.2 3.5   5.1 *5.4
Thermal Conductivity
@ 25C
@ 500C 		W/m-K  
2.97
2.2 		 
 
  		 
7.77
10.1 		 
18.4
16.3 		 
45
40
Specific Heat
@ 25C
@ 500C 		J/g -K  
0.71
1.17 		   
0.67
1.17 		 
0.70
1.15 		**0.75
* Measured: 20C to 1320C
** Measured: 50C