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Vitreous Carbon Planchettes

Vitreous Carbon Planchettes

High purity, 2mm or 3mm thick planchettes with smooth polished surfaces, impermeable to gases and liquids. Suitable for analytical work and X-ray investigations. Also available unpolished.

All prices exclude VAT.

Description Tech Data

Name & Code

Grouped product items
Code & Description	Availability	Price	Qty
AGG3428 Vitreous Carbon Planchette 12.7mm Dia. x 2mm, Polished Loading...	Loading...	£94.03	£94.03
AGG3429 Vitreous Carbon Planchette 25mm Dia. x 3mm, Polished Loading...	Loading...	£194.18	£194.18

Product Description

Vitreous carbon planchettes are ideal substrates for X-ray analysis and backscattered electron imaging in a SEM or electron microprobe. They provide excellent conductive, low emission x-ray background (free of any characteristic X-ray peaks except carbon) and they can be cleaned and used again.

For imaging applications and fine powders the vitreous carbon is the best choice. It’s in advanced materials of 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.

Available either 2mm or 3mm thick, and polished or unpolished.

Technical Data

High purity vitreous carbon with impurities less than 30ppm total.

Typical chemical analysis:
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

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

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PRICE & AVAILABILITY: Please note that while we are working closely with our suppliers to minimise any global supply chain issues, prices and availability may be subject to change at short notice.