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Beryllium Planchets

Vitreous Carbon and Carbon Planchets

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 provides 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 carbon 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.

Vitreous Carbon Planchet

Mirror Finish, One Side

Polished surface for extreme smoothness, sometimes called "glassy" carbon. For analytical work, X-ray investigations.

Impermeable to gases and liquids, high purity, corrosion resistant, thermal stability in air up to 550°C and in vacuum or inert gas up to 3,000°C. Very 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

High purity vitreous carbon with impurities less than 30ppm total.
Typical chemical analysis of these vitreous carbon planchet is:

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

16524
MF Vitreous Carbon Planchet 12.7mm dia. x 2mm
each
$79.20

Qty:

16526
MF Vitreous Carbon Planchet 25mm dia. x 3mm
each
94.50

Qty:

16528
MF Vitreous Carbon Planchet 32mm dia. x 3.2mm
each
118.50

Qty:

Carbon Planchets

Spectroscopically pure carbon (graphite) planchets with impurities equal to or less than 2ppm (single element 1ppm or less). Fine ground finish on one side; 0.80µm (32µ inches). All 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
$12.50

Qty:

pkg/100
115.00

Qty:

16500
Carbon Planchets, 12.7mm, for pin stubs
pkg/10
9.00

Qty:

pkg/100
80.00

Qty:

16505
Carbon Planchets, 15mm, for Hitachi and ISI/ABT/Topcon mounts
pkg/10
12.50

Qty:

pkg/100
115.00

Qty:

16508
Carbon Planchets, 18mm, for 18mm pin stubs
pkg/10
13.50

Qty:

pkg/100
125.00

Qty:

16510
Carbon Planchets, 25.4mm, for large pin stubs, JEOL metallographic mounts and Hitachi 25mm mounts
pkg/10
14.50

Qty:

pkg/100
130.00

Qty:

16512
Carbon Planchets, 32mm, for large pin stubs, Hitachi and JEOL mounts
pkg/10
25.60

Qty:

pkg/100
232.00

Qty:

Highly Polished Carbon Planchets

The highly polished carbon planchets have a smooth, virtually mirror finish on one side with a surface roughness of 0.05 to 0.01um. The material is spectroscopically pure carbon (soft graphite) with impurities equal to or less than 2ppm (single element 1ppm or less). The polished planchets are 1.4 to 1.5mm (0.55" to 0.06") thick. Available in the popular 12.7mm (1/2") and 25.4mm (1") diameter.

Prod # Description Unit Price Order / Quote

16500-P
Highly polished Carbon Planchets, 12.7mm diameter
pkg/1
$20.00

Qty:

pkg/10
185.00

Qty:

16510-P
Highly polished Carbon Planchets, 25.4mm diameter
pkg/1
24.50

Qty:

pkg/10
225.00

Qty: