Vitreous Carbon and Carbon (graphite) Planchets are ideal substrates for X-ray analysis and
backscattered electron imaging in a SEM or electron microprobe. The spectroscopically pure
carbon discs provide an excellent conductive, low emission X-ray background free of any
characteristic X-ray peaks except carbon. Carbon Planchets are favored over the non-conductive
diamond planchets (charging will have negative effects on the analytical results and can distort
X-ray mapping and imaging).
The Vitreous Carbon and Carbon (graphite) Planchets can be cleaned and used again. For fine
powders and imaging applications the vitreous carbon is the best choice. For X-ray applications
of larger particles or specimens or for applications where the planchets can not be used again,
the Carbon (graphite) Planchets are adequate.
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Vitreous Carbon Planchets
NEW Sizes Available!
Lapped surface on one side for smoothness, also known as glassy carbon or glass-like carbon.
For analytical SEM/EDX, X-ray analysis and chemical analysis applications. |
Vitreous carbon is an advanced materials of pure carbon combining glassy and ceramic properties
with those of graphite. Impermeable to gases and liquids, high purity, corrosion resistant,
thermal stability in air up to 600°C and in vacuum or inert gas up to 3,000°C. Good electrical
conductivity, low thermal expansion and extreme resistance to thermal shock. Hard and strong
(hardness = 230 HV1).
Applications in the fields of chemical analysis, metallurgy, crystal
growth, medical technology and in glass and ceramics research. MSDS (95KB PDF)
High purity vitreous carbon with impurities less than 30ppm total. |
|
Physical Properties of Vitreous Carbon |
Maximum Service Temperature (vacuum or inert gas) |
3000°C |
Density |
1.42 g/cm³ |
Open Porosity |
0% |
Permeability Coefficient |
10-9 cm²/s |
Vickers Hardness |
230HV |
Flexural Strength |
260 MPa |
Young's Modulus |
35 GPa |
Compressive Strength |
480 MPa |
Electrical Resistivity (30°C) |
45Ωµm |
Thermal Conductivity (30°C) |
6.3 W/(Km) |
Expansion Coefficient (20-200°C) |
2.6 x 10-6/K |
|
Typical chemical analysis of these Vitreous Carbon Planchets: |
Al |
0.270 |
|
Cu |
0.030 |
|
Sn |
0.440 |
Ba |
0.081 |
|
Fe |
0.920 |
|
Si |
13.860 |
Be |
0.044 |
|
K |
0.340 |
|
Sr |
0.061 |
Bi |
0.050 |
|
Mg |
0.052 |
|
Ti |
0.096 |
Ca |
9.710 |
|
Mn |
0.041 |
|
V |
0.044 |
Cd |
0.044 |
|
Mo |
0.044 |
|
W |
0.089 |
Co |
0.089 |
|
Na |
0.780 |
|
Zn |
0.044 |
Cr |
0.091 |
|
Ni |
0.120 |
|
Zr |
0.062 |
|
Prod #
| Description
| Unit
| Price
| Order / Quote
|
16514
| NEW High Purity Vitreous Carbon Planchet 9.5mm dia. x 2mm
| each
| $146.00
|
|
16515
| NEW High Purity Vitreous Carbon Planchet 10mm dia. x 2mm
| each
| 146.00
|
|
16516
| NEW High Purity Vitreous Carbon Planchet 12.2mm dia. x 2mm
| each
| 146.00
|
|
16518
| NEW High Purity Vitreous Carbon Planchet 12.5mm dia. x 2mm
| each
| 146.00
|
|
16524
| High Purity Vitreous Carbon Planchet 12.7mm dia. x 2mm
| each
| 113.00
|
|
16520
| NEW High Purity Vitreous Carbon Planchet 18mm dia. x 2mm
| each
| 188.00
|
|
16522
| NEW High Purity Vitreous Carbon Planchet 15mm dia. x 2mm
| each
| 230.00
|
|
16526
| High Purity Vitreous Carbon Planchet 25mm dia. x 3mm
| each
| 148.00
|
|
16528
| High Purity Vitreous Carbon Planchet 32mm dia. x 3.2mm
| each
| 184.00
|
|
|

Properties of Grade 1 Carbon |
Density |
1.58 - 1.63 g/cm³ |
Hardness |
30 - 35 Shore |
Electrical Resistivity |
58 - 71 Ωµm |
Flexural Strength |
24 - 31 MPa |
Tensile Strength |
22 MPa |
Compressive Strength |
48 MPa |
Thermal Expansion |
1.9 x 10-6/°C |
Porosity |
28 - 30% |
Purity |
Impurities < 2ppm |
|
Carbon Planchets
Spectroscopically pure carbon Grade 1 (graphite) planchets with total impurities equal to or less
than 2ppm with each single element 1ppm or less. Trace elements can be Si, Al, Fe, Mg, Ca or B. The carbon discs have a fine ground finish on one side; 0.80µm
(32µ inches). All carbon planchets are 1.6mm (1/16") thick. Sizes from 10 to
32mm diameter to fit all styles of SEM pin and cylinder mounts varying from 10 to
32mm diameter.
|
Prod #
| Description
| Unit
| Price
| Order / Quote
|
16504
| Carbon Planchets, 10mm, for JEOL 10mm mounts
| pkg/10
| $13.30
|
|
pkg/100
| 123.00
|
|
16500
| Carbon Planchets, 12.7mm, for pin stubs
| pkg/10
| 16.50
|
|
pkg/100
| 149.00
|
|
16505
| Carbon Planchets, 15mm, for Hitachi and ISI/ABT/Topcon mounts
| pkg/10
| 14.50
|
|
pkg/100
| 135.00
|
|
16508
| Carbon Planchets, 18mm, for 18mm pin stubs
| pkg/10
| 14.00
|
|
pkg/100
| 130.00
|
|
16510
| Carbon Planchets, 25.4mm, for large pin stubs, JEOL metallographic mounts and Hitachi 25mm mounts
| pkg/10
| 22.00
|
|
pkg/100
| 209.00
|
|
16512
| Carbon Planchets, 32mm, for large pin stubs, Hitachi and JEOL mounts
| pkg/10
| 34.50
|
|
pkg/100
| 323.00
|
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