One of the most advanced and promising engineering material is the carbon fiber reinforced carbon matrix composite (C/C composites). Carbon-Carbon composites are among the strongest and lightest high-temperature engineered material in the world. Compared to other materials such as graphite, ceramics, metal, and plastic, it is lightweight and strong and can withstand temperatures over 2000℃ without any loss in performance.
A Carbon-Carbon composite is a carbon fiber reinforced carbon matrix composite. It is a two-phase composite material and as the name implies, both the matrix and reinforcement fiber are carbon. Carbon-Carbon can be tailor-made to give a wide variety of products by controlling the choice of fiber-type, fiber presentation and the matrix. Carbon-Carbon is primarily used for extreme high temperatures and friction applications.
Carbon-Carbon combines the desirable properties of the two constituent carbon material. The Carbon matrix (Heat resistance, Chemical resistance, Low thermal expansion coefficient, High-thermal conductivity, Low electric resistance, Low specific gravity) and the Carbon Fiber (High-strength, High elastic modulus) are molded together to form a better combination material. The reinforcing fiber is typically either a continuous (long-fiber) or discontinuous (short-fiber) carbon fiber type.
Since its establishment, CFC Design has been promoting the new technologies of advanced composite materials – including the C/C composite – by introducing innovative manufacturing methods to diverse segments such as the high temperature, friction material, and advanced technology industries. We offer our expertise in the areas of innovation and co-development through a wide range of high-performance composite materials and engineering design to help improve productivity and contribute to energy savings.
Although the C/C composite has excellent performance, the conventional manufacturing method (impregnation method and CVD method) requires complicated steps and requires very long time to manufacture. And as a result it was extremely expensive. CFC have succeeded in a process simplification, shortening delivery time and reducing costs by developing innovative new manufacturing method called preformed yarn method (PY method).
Since the C/C composite is a composite material reinforced with carbon fiber, by controlling the orientation (fiber direction) and length of the fiber, which is the source of its mechanical strength, it is possible to derive various characteristics according to the specific application. Through the accumulation of technology over the years, as shown in the table below, we can realize many product types and can respond to customers’ diverse needs.
Unidirectional Fiber Orientation | Long-fiber | ![]() |
Application: High-strength Rods, etc. Features: Long Rods width maximum bending Strength: Used for Springs & Pins |
Bi-directional Fiber (0°/90°) Orientation | Long-fiber | ![]() |
Application: Plates, Large-size boards Features: Heat-treatment trays, etc. Most common use in the heat-resistance field |
Multi-directional Fiber Orientation | Short-fiber | ![]() |
Application: Bolts & Nuts, Precision Jigs, etc. Features: Well suited for precision machined parts and complex components |
One of the unique characteristics of C/C Composite is its porous structure within the carbon matrix. By introducing metal into the carbon matrix, we are able to transform the characteristics of the C/C Composites. With the addition of metal to the main structure of C/C composite, the new material brings out effectively the best functions of each element so that it can be used for different kinds of application. We have defined this as C/CMC, Carbon-Carbon Metal Composite, which is superior in wear resistance, corrosion resistance and sliding property.
Silicon reacts with carbon during sintering and converts to Silicon carbide (SiC), a ceramic compound. We succeeded in remarkably improving the abrasion resistance and oxidation resistance while maintaining the sliding properties of carbon. Applications: Automobile brake pads・Bearing materials
The effect of improving the electrical conductivity by copper infiltration, while maintaining the excellent sliding properties and the high-strength, high toughness of reinforcing carbon fibers, makes it possible to use in applications such as sliding boards for current collection on high-speed rails (Pantograph). Applications: Pantograph・Sliding Electrical Parts
The biggest feature of C/C composite is its excellent heat resistance. Since it is heat-treated at temperatures ranging between 2000℃ to 2500℃ during the manufacturing process, there is no deformation due to heat. And with its low susceptibility to thermal shock, it can withstand repeated heat treatment. The 1.6 g/cm3 in density makes its total weight approximately 1/5 of steel, making them significantly lightweight. Furthermore, since it is a graphite material reinforced with carbon fiber, the strength is 3 to 5 times that of the conventional graphite material, and it will not be damaged even if it is dropped.
CHARACTERISTIC | UNIT | FS140[AC100] | FS240[AC200] PLATE | FS240[AC200] BAR | FS320 | FS540[FC500] | FS740 | |
---|---|---|---|---|---|---|---|---|
Heat Treatment Temperature | ℃ | 2500 | 2000 | 2000 | 2000 | 2000 | 2000 | |
Bulk Density | g/m³ | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | |
Flexural Strength | ⊥ | Mpa | 130 | 200 | 147 | 130 | 170 | 190 |
Flexural Modulus | ⊥ | Gpa | 65 | 45 | 44 | 27 | 40 | 41 |
Tensile Strength | // | Mpa | 100 | 140 | 98 | 110 | 150 | 190 |
Tensile Modulus | // | Gpa | 70 | 52 | 52 | 30 | 50 | 50 |
Compressive Strength | // ⊥ | Mpa | 50 75 | 130 140 | 95 95 | 110 120 | 120 140 | 130 190 |
Interlaminar Shear Strength | Mpa | 15 | 13 | 13 | 10 | 17 | 17 | |
Coefficient of Thermal Expansion (RT-1000℃) | // ⊥ | 10-6/℃ | 0.2 10.8 | 0.6 8.5 | 0.7 8.6 | 1.4 8.5 | 1.4 10.5 | 0.6 9.2 |
Thermal Conductivity (25℃) | // ⊥ | W/m·K | 120 32 | 34 15 | 34 15 | 27 21 | 40 10 | 40 12 |
Specific Heat | 25℃ 1300℃ | J/㎏·K | 750 1970 | 750 1970 | 750 1970 | 750 1970 | 750 1970 | 750 1970 |
Volume Resistivity | // | μΩ㎝ | 1300 | 2500 | 2900 | 3100 | 2200 | 2300 |
Reinforcement Fiber | Short Fibers | Long Fibers | Long Fibers | Long Fibers | Short Fibers | Short Fibers | ||
Fiber Orientation | 2D Random | 0°/90° | 0°/90° | 0°/90° | 2D Random | 2D Random |
*The above data are typical values information only and are not guaranteed.
*FS240 sheet and other product shapes are excluded.
Dimension (mm) | Dimension (inches) |
---|---|
1000 × 2000 × 27.0 | 39.4″ × 78.7″ × 1.06″ |
Dimension (mm) | Dimension (inches) |
---|---|
1000 × 2000 × 3.0 | 39.4″ × 78.7″ × .118″ |
1000 × 2000 × 4.0 | 39.4″ × 78.7″ × .157″ |
1000 × 2000 × 5.0 | 39.4″ × 78.7″ × .197″ |
1000 × 2000 × 6.0 | 39.4″ × 78.7″ × .236″ |
1000 × 2000 × 8.0 | 39.4″ × 78.7″ × .315″ |
1000 × 2000 × 10.0 | 39.4″ × 78.7″ × .394″ |
1000 × 2000 × 15.0 | 39.4″ × 78.7″ × .591″ |
1000 × 2000 × 20.0 | 39.4″ × 78.7″ × .787″ |
Dimension (mm) | Dimension (inches) |
---|---|
190 × 1900 × 75.0 | 7.48″ × 74.8 × 2.95″ |
Dimension (mm) | Dimension (inches) |
---|---|
1000 × 2000 × 1.2 | 39.4″ × 78.7″ × .047″ |
1000 × 2000 × 1.6 | 39.4″ × 78.7″ × .063″ |
1000 × 2000 × 2.0 | 39.4″ × 78.7″ × .079″ |
Dimension (mm) | Dimension (inches) |
---|---|
1000 × 2000 × 3.0 | 39.4″ × 78.7″ × .118″ |
1000 × 2000 × 5.0 | 39.4″ × 78.7″ × .197″ |
1000 × 2000 × 8.0 | 39.4″ × 78.7″ × .315″ |
1000 × 2000 × 10.0 | 39.4″ × 78.7″ × .394″ |
1000 × 2000 × 15.0 | 39.4″ × 78.7″ × .591″ |
1000 × 2000 × 20.0 | 39.4″ × 78.7″ × .787″ |
Dimension (mm) | Dimension (inches) |
---|---|
1000 × 1000 × 6.4 | 39.4″ × 39.4″ × .252″ |
1000 × 1000 × 9.0 | 39.4″ × 39.4″ × .354″ |
1000 × 1000 × 11.0 | 39.4″ × 39.4″ × .433″ |
1000 × 1000 × 13.0 | 39.4″ × 39.4″ × .512″ |
1000 × 1000 × 15.0 | 39.4″ × 39.4″ × .591″ |
1000 × 1000 × 21.0 | 39.4″ × 39.4″ × .827″ |
Dimension (mm) | Dimension (inches) |
---|---|
1000 × 1000 × 6.4 | 39.4″ × 39.4″ × .252″ |
1000 × 1000 × 9.0 | 39.4″ × 39.4″ × .354″ |
1000 × 1000 × 11.0 | 39.4″ × 39.4″ × .433″ |
1000 × 1000 × 13.0 | 39.4″ × 39.4″ × .512″ |
1000 × 1000 × 15.0 | 39.4″ × 39.4″ × .591″ |
1000 × 1000 × 21.0 | 39.4″ × 39.4″ × .827″ |
CHARACTERISTIC | UNIT | TYPE-A | TYPE-B | TYPE-C | TYPE-D |
---|---|---|---|---|---|
Outer Diameter | mm | ø31 | ø50 | ø50 | ø50 |
Inner Diameter | mm | ø19 | ø20 | ø30 | ø20 |
Free Length | mm | L40 | L25 | L27.5 | L40 |
Spring Constant | kgf/mm | 2 | 2 | 2.5 | 3.5 |
Shrinkage Allowance | mm | 7 | 5 | 5 | 7 |
C/C STANDARD THREADED ROD | C/C STANDARD NUT | C/C STANDARD ROD | |||||||
STANDARD SPEC | STANDARD SPEC | STANDARD SPEC | |||||||
---|---|---|---|---|---|---|---|---|---|
SIZE | mm | M6 × 1000 | SIZE | mm | M6 | 14 × 14 × 5 | SIZE | mm | ø6 × 1000 |
M8 × 1000 | M8 | 16 × 16 × 5 | ø8 × 1000 | ||||||
M10 × 1000 | M10 | 20 × 20 × 10 | ø10 × 1000 | ||||||
M12 × 1000 | M12 | 22 × 22 × 10 | ø12 × 1000 | ||||||
M14 × 1000 | M14 | 24 × 24 × 10 | ø14 × 1000 | ||||||
M16 × 1000 | M16 | 26 × 26 × 10 | ø16 × 1000 | ||||||
M20 × 1000 | M20 | 32 × 32 × 20 | ø20 × 1000 |
*Inches and special size orders available upon request. For any consultation, please contact us.
CFC Design specializes in the manufacturing technology of C/C Composites. We can offer wide range of CFC [Carbon Fiber + Carbon] solutions for virtually every industrial applications. Whether it is designing the application product according to customer needs or the designing of C/C composite material, we are here to provide economical solutions for your most challenging projects. With our unique know-how experiences, we fulfill each customer needs and able to offer highest quality products with outstanding characteristics of C/C Composite.
Carbon-Carbon is used for mechanical fasteners under extreme high temperatures including bolts, nuts, and studs (e.g. M6 to M20 CFC standard).
Heat-treat trays, racks, shelves, grids, etc. that are custom designed to suit your specific needs. Lightweight, high-strength, heat-resistant and does not distort.
Custom C/C jigs and fixtures for creating products in brazing, diffusion bonding, and metal heat treatment fields. No thermal deformation and maintains excellent characteristics at high temperature.
Compared to conventional furnace materials such as metal, graphite, or ceramics, Carbon-Carbon is high strength and lightweight, which then leads to significant increase in production capacity output.
Carbon-Carbon is used for transporting parts and substrate material between processes and has excellent dimensional stability, thermal conductivity and durability. It can be used in a clean room by applying the surface layer with dust prevention coating.
CFC friction material products employ the unique frictional and thermal shock resistance characteristics of carbon-carbon composites. The distinct structural make up of this category achieves in producing fine parts such as brakes and clutches and industrial bearings.