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Vacuum Pumps and Evaporation

Electron Microscopy Sciences

arrow14Metal Wire, Foils, Baskets, and Boats

arrow12Pyrolytic Graphite Foil Boat

For more technical information, see Pyrolytic Graphite Stripper Film.

Boat dimensions:

Thickness of pyrolytic graphite foil is 0.20 mm (0.020”) Overall length is 32mm (1.25”) and width is 9.6mm (0.375”)

Trough Dimension: 12.7 mm (L) x 9.0 mm (W) x 3.2 mm (D) (0.5 x 0.355 x 0.03”)

73808-B1 Pyrolytic Graphite Boat B1 5/pack 100.00 cart

Metal Boatsarrow12Metal Boats

For disc aperture cleaning, vacuum evaporation.
Thickness: 0.05mm (0.002") Overall length: 75mm (3")
Trough Measures: 12mm(1.2") long x 5mm (3/16") wide x 1mm deep.

73810 Molybdenum Boat 5/pack 22.85 cart
73812 Platinum Boat 1/pack 75.00 cart
73814 Tantalum Boat 5/pack 43.00 cart

Tungsten Metal Wire and Boat arrow12Tungsten Metal Wire and Boat

Properties of Tungsten:

Tungsten has the highest melting point and lowest vapor pressure of all metals, and at the temperatures over 1650°C has the highest tensile strength. It has excellent corrosion resistance and is attacked only slightly by most mineral acids.

Tungsten is the most useful material used in vacuum evaporation technique, due to its special properties and cost factor.

Chemical symbol:

W

Atomic Structure:

Atomic Radius: 2.02Å
Atomic Volume, cm3/mol: 9.53
Covalent Radius: 1.3 Å
Crystal Structure: Body centered cube
Number of Electron (with no charge): 74
Atomic Number of Protons: 74
Number of Neutrons (most common/stable nuclide): 110
Ionic Radius: 0.62Å
Cross Section: 18.5barns ± 0.5

Chemical Properties:

Electrochemical Equivalent: 1.1432g/amp-hr
Electron Work Function: 4.55eV
Electronegavity (Pauling): 2.36
Heat of Function: 35.4kJ/mol
Incompatibilities: Bromine trifluoride, Chlorine trifluoride, Fluorine, Iodine pentafluoride
Valence Electron Potential (-eV): 140

Physical Properties:

Atomic Weight: .183.86
Boiling Point: .5928K, 5655°C, 10211°F
Coefficient of Lineal Thermal Expansion: 0.0000046cm/cm/°C (O°C)
Electrical Conductivity: 0.189 106/cm
Thermal Conductivity: 1.74 W/cmK
Density @ 20°C (gm/cc @ 300°K): 19.35
Melting Point/Freezing Point: 3680K, 3407°C, 6165°F
Enthalpy of Atomization: 837 kJ/mole @ 25°C
Enthalpy of Fusion: 35.23kJ/mole
Enthalpy of Vaporization: 799.1 kJ/mole
Hardness Scale: Brinell 2570MN m-2; Mohs 7.5;
  Vickers 3430 MN m-2
Heat of Vaporization: 824 kJ/mo
Optical Reflectivity: 62%
Vapor Pressure = 4.27Pa@3407°C
CAS Number: 7440-33-7
RTECS: Y0717500
OSHA Permissible Exposure Limit (PEL): No limits set by OSHA
TWA: 5 mg/m3; STEL: 10mg/m3

Route of Exposure: Inhalation, Ingestion, skin, and/or eye
Target Organs: Eyes, Skin, Respiratory system, Blood

arrow101. Tungsten Wire:

We are offering tungsten wire in 99.99% purity. Available in 0.02" (.51mm), and 0.009" (0.23mm) diameters.

73800 Tungsten Wire, 0.020" (0.51mm) Diameter 20 ft 12.75 cart
73801 Tungsten Wire, 0.020" (0.51mm) Diameter 100 ft 60.00 cart
73802 Tungsten Wire, 0.025" (0.64mm) Diameter 20ft 17.00 cart
73803 Tungsten Wire, 0.025" (0.64mm) Diameter 100ft 80.00 cart
73804 Tungsten Wire, 0.009" (0.25mm) Diameter 20ft 12.00 cart
73805 Tungsten Wire, 0.009" (0.25mm) Diameter 100ft 58.00 cart
Tungsten Wire Baskets arrow102.Tungsten Wire Baskets

Clean, Vacuum grade, tungsten wire.

Basket Type Turns I.D. mm Height mm Wire Lead cm Wire Dia. Inches
A 9 4 7 3.5 0.020
C 8 7 9 5.0 0.020
D 8 9 14 4.0 0.030
73830 Tungsten Wire Basket A 50/pack 81.00 cart
73832 Tungsten Wire Basket C 50/pack 142.00 cart
73834 Tungsten Wire Basket D 50/pack 132.00 cart
arrow10Tungsten Wire Filaments

V-Shaped Filaments

High purity, vacuum grade tungsten wire 0.02" (0.50mm) diameter, V-shaped filaments ½" (12.7mm) deep, with a bottom angle of 45°, either single wire or triple strand.

Cat. # Overall Length No. Strand V- Opening Qty    
73840 3" (76.2mm) Single 3⁄4"(19mm) 10/pk 9.00 cart
73842 3" (76.2mm) Triple 5⁄8" (16mm) 10/pk 18.00 cart
73844 3½"(88.9mm) Triple 3⁄4" (19mm) 10/pk 19.00 cart


arrow10Coiled Filaments

Single or 3-strand coiled tungsten filaments, 0.5mm (0.002") diameter wires.

73938-1 4" long Horizontal Helix, Coil length 45mm (13⁄4") with 6 turns, 6.3mm(1⁄4") diameter coil. Single strand 5/pk 12.00 cart
73938-3 4" long Horizontal Helix, Coil length 45mm (13⁄4") with 6 turns, 6.3mm(1⁄4") diameter coil. Triple strand 5/pk 21.00 cart
73939-1 5" long Horizontal Helix, Coil length 51mm (2") with 12 turns, 9.5mm(½") diameter coil. Triple strand 5/pk 40.00 cart


Tungsten Foil Boatsarrow104. Tungsten Foil Boats:

Tungsten Boat B1: Thickness of tungsten foil is 0.05mm (0.002"), overall length is 32mm (1¼").
The trough: 12.7mm(L) x 9.5mm(W) x 3.2mm Deep (½" x 5⁄8" x 1⁄32")

73816 Tungsten Boat 5/pack 24.00 cart

Tungsten Boat B2: Thickness of tungsten foil is 0.25mm (0.010").
The overall length is 101.6mm x 19.05mm (4" x 3⁄4").
Trough: 39.37mm (L) x 2.79mm Deep, 0.92 ml

73816-B2 Tungsten Boat B6 5/pack 46.00 cart

Tungsten Boat B3: Thickness of tungsten foil is 0.25mm (0.010").
The overall length is 101.6mm x 19.05mm (4" x 3⁄4").
Trough: 39.1mm(L) x 6.35mm(W) x 3.3mmDeep, 0.5ml

73816-B3 Tungsten Boat B6 5/pack 48.00 cart

Tungsten Boat B4: Thickness of tungsten foil is 0.25mm (0.010")
The overall length is 100.5mm x 19.05mm (3 ½" x 3⁄4").
Trough: 28.19mm(L) x 15.87(W) x 3.3mm Deep, 0.99ml

73816-B4 Tungsten Boat B4 5/pack 30.00 cart

Tungsten Boat B5: Thickness of tungsten foil is 0.25mm (0.010").
The overall length is 101.6mm x 12.7mm (4" x ½").
Trough: 9.65mm Diameter x 3.81mmDeep, 0.18ml

73816-B5 Tungsten Boat B5 5/pack 30.00 cart

Tungsten Boat B6: Thickness of tungsten foil is 0.25mm (0.010").
The overall length is 101.6mm x 39.1mm(L) (4" x ½")
Trough: 39.1mm(L) x 12mm(W) x 3.55mmDeep, 1.0ml

73816-B6 Tungsten Boat B6 5/pack 30.00 cart

Tungsten Boat B7: Thickness of tungsten foil is 0.25mm (0.010").
The overall length is 101.6mm x 25.4mmL x (4" x 1")
Trough: 53.84mm(L)x25mm(W) x2.28mmDeep, 2.43ml

73816-B7 Tungsten Boat B7 5/pack 50.00 cart

arrow12Metal Foils

For aperture cleaning, vacuum evaporation

73820 Molybdenum foil, 0.002" thick, (0.05mm); 6x6"(15.2 x 15.2 cm) each 46.00 cart
73822 Tantalum Foil, 0.003" thick, (0.075mm); 6 x6" each 200.00 cart

arrow12Heavy Duty Wire Bending Pliers

These extra heavyduty pliers are used for bending any metal wire at a ‘V’ shaped angle, allowing for the formation of filaments in accordance to your specification.

62185 Wire Bending Pliers, 6½" (165mm) Long each   cart

Precious Metal Wiresarrow12 Precious Metal Wires

High Purity, vacuum grade. These metals wires are suitable for scanning and electron microscopy techniques.

Aluminum Wire: Purity 99.99:

73000 Aluminum Wire,0.010"(0.25mm) diameter 10 ft 5.00 cart
73001 Aluminum Wire,0.010"(0.25mm) diameter 50 ft 15.00 cart

Gold Wire: Purity 99.99:

73100 Gold Wire, 0.008"(0.20mm) diameter 10 ft 96.00 cart
73101 Gold Wire, 0.008"(0.20mm) diameter 50 ft 410.00 cart

Molybdenum Wire: Purity 99.95:

73200 Molybdenum Wire, 0.008"(0.20mm) diameter 10 ft 16.50 cart
73201 Molybdenum Wire, 0.008"(0.20mm) diameter 50 ft 55.00 cart

Palladium Wire: Purity 99.90%

73300 Palladium Wire, 0.008"(0.20mm) diameter 10 ft 32.00 cart
73301 Palladium Wire, 0.008"(0.20mm) diameter 50 ft 140.00 cart
Palladium/Gold Wire 40:60, Purity 99.90
73400 Palladium/Gold Wire, 0.008"(0.20mm) diameter 10 ft 75.00 cart
73401 Palladium/Gold Wire, 0.008"(0.20mm) diameter 50 ft 325.00 cart
Platinum: Purity 99.95%
73500 Platinum Wire, 0.008"(0.20mm) diameter 10 ft 150.00 cart
73501 Platinum Wire, 0.008"(0.20mm) diameter 50 ft 690.00 cart
Platinum/Palladium Wire: Purity 99.90%
73600 Platinum/Palladium Wire, 0.008"(0.20mm) diameter 10 ft 110.00 cart
73601 Platinum/Palladium Wire, 0.008"(0.20mm) diameter 50 ft 450.00 cart

Silver Wire: Purity 99.99%

73700 Silver Wire, 0.008"(0.20mm) diameter 10 ft 16.75 cart
73701 Silver Wire, 0.008"(0.20mm) diameter 50 ft 78.00 cart

Tungsten Wire: Purity 99.99%

73800 Tungsten Wire, 0.020" (0.51mm) diameter 10 ft 12.75 cart
73801 Tungsten Wire, 0.020" (0.51mm) diameter 50 ft 60.00 cart

Carbon and Graphite for Evaporation arrow12arrow12

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