Why Carbon Nanotubes?

 

 

CNT can change the properties of 70% all materials.

 

 

Modulus

Tensile Strength

Thermal conductivity
Al 70 GPa 0,5 GPa 240 W/(mxK)
Steel 200 GPa 1,5 GPa 400 W/(mxK)
УНТ 1000 GPa 200 GPa 4000 W/(mxK)

 

Tensile strength of egineering materials, GPa.

 

 

 

 

At the moment the introduction of CNS in metals is possible only in the field of powder metallurgy, thus there is a significant rise in production. Powder metallurgy is not more than 4% of the world market of metal products.

Challenges to the introduction of CNT in the metal melt:

•          High chemical inertness of carbon nanotubes

•          Low wettability of CNT with metal

•          The low thermal stability of CNT

Developed a unique technology that allows to enter CNT directly into the molten metal.

 

We use a unique method of preparing carbon nanotubes, this method allows significantly improve the properties of modified metals.

Snapshots of the electron microscope: carbon nanotubes modified by technology owned by company's Carbon tech, LLC. CNT introduced directly into the molten aluminum.

The results testing sample of the modified copper (tensile):

 

 

Options

Purecopper

6006* 6004* 6008

Diameter of the samples, мм

8 8 8 8

Diameter of the samples after testing, мм

7,67 6,4 7,31 2,2

Modulusof elasticity, GPa

84 83 132 70

Maximum load, kgs

448,4 669,2

542,9

699,3

Tensile strength, MPa

87,5

130,6

105,9

136,5

Yieldstrength, MPa

50,3

40,4

59,1

48,8

Proportional limit, MPa

35,9

30,6

42,5

33,1

Elongation at break,%

8,33

36,6

11,0

46,3

Narrowing at break,%

8,1

36

16,5

92,4

* Samples6006, 6004 and 6008 have different properties due to the different concentration of the modifier.

 

 

The results testing sample of the modified aluminum:

 

 

 

№ ofsamples

Modifier

type

CNT

concentration, %

Tensile

strength, MPa

Elongation

at break, %

4

SWCNT

0,03*

71,76

30,62

5

SWCNT

0,12

65,99

18,22
6

SWCNT

0,3

56,72

12,12

7

MWCNT

0,03

62,73

16,53
8

MWCNT

0,12

56,14

13,36

9

MWCNT

0,3

48,67

9,33
10

Controlsample

-

37,99

5,08

*The best result was shown by the sample with the lowest concentration of CNT