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Tungsten filaments for electron microscopes
Tungsten hairpin filaments are the standard type filaments widely used in Scanning Electron Microscopes, Transmission Electron Microscopes and Microprobe systems. Tungsten filaments are also called cathodes or electron emitters or electron sources. The high quality filaments we offer are made to the original equipment manufacturer's specifications using special tools to guarantee the correct shape for the filaments and to generate the optimum electron beam. The filaments are annealed in vacuum, stress-free and precisely aligned before they are shipped. Please consult the list below for the correct type of filament for your SEM, TEM, or EPMA.
The tungsten filaments are manufactured from high grade tungsten. Of all metals in pure form, tungsten has the highest melting point (3422°C), the lowest vapour pressure at temperatures above 1650°C and has the highest tensile strength. Tungsten also has the lowest coefficient of thermal expansion of any pure metal. This combination of properties makes tungsten the ideal material.
Compatible EM: JEOL K-type Filaments
Specifications:
- Ceramic in stainless steel alignment ring.
- Diameter of ceramic disc: 28.0mm
- Diameter of pins: 1.2mm
- Centre to centre distance of pins: 8.0mm
| Code | Title | Pack Size | Availability | Price | Updated: 27-12-2024 |
|---|---|---|---|---|---|
| M76K | Tungsten filaments for electron microscopes | Pack/6 | 3 weeks | $1,062.00 AUD | |
| M77V | Tungsten filaments for electron microscopes | Pack/10 | 3 weeks | $1,046.00 AUD | |
| M79 | Tungsten filaments for electron microscopes | ZEISS/LEO filaments | 2 in stock | $1,214.00 AUD | |
| MTP-1427-1 | Tungsten filaments for electron microscopes | Tescan filaments | 3 weeks | P.O.R. | Quote |
* Availability Explanation
X weeks – the estimated lead time, based on the average time taken previously to fill orders from this particular supplier. Lead times are from when we receive your order until when we fill your order. For delivery times, please see shipping information below.
In Stock – Plenty of stock on the shelf, ready to ship.
No ETA – our supplier has advised they cannot provide an accurate ETA. Generally there is some issue with supply, and it may be more than 6 months.
