Tungsten Oxide (WO₃) Pieces Evaporation Materials

Overview
Calculators

Tungsten Oxide (WO₃) Pieces Overview

We sell these pellets and pieces by unit weight for evaporation use in deposition processes. These approximate materials prices are published to provide budgetary guidelines. Actual prices can vary and may be higher or lower, as determined by availability and market fluctuations. To speak to someone directly about current pricing, please click here .

Tungsten Oxide (WO₃) Specifications

Material Type	Tungsten Oxide
Symbol	WO₃
Color/Appearance	Lemon Yellow, Solid
Melting Point (°C)	1,473
Theoretical Density (g/cc)	7.16

Z Ratio	**1.00
E-Beam	Good
Thermal Evaporation Techniques	Boat: W
E-Beam Crucible Liner Material	Tungsten
Temp. (°C) for Given Vap. Press. (Torr)	10^-4: 980
Comments	Preheat gently to outgas. W reduces oxide slightly.
Suggested QCM Crystal	Alloy Crystal: 750-1002-G10****

** The z-ratio is unknown. Therefore, we recommend using 1.00 or an experimentally determined value. Please click here for instructions on how to determine this value.

**** Suggestion based on previous experience but could vary by process. Contact local KJLC Sales Manager for further information

E-beam Crucible Liner Fill Rate Calculator

Instructions for use:
Input the Crucible Liner Volume, Select Material (if not available in menu, manually input Material Density in g/cm³), and input fill rate %.

KJLC recommends a fill rate between 67-75%. Overfilling the crucible will cause the material to spill over and create an electrical short between the liner and the hearth causing the crucible to crack. Placing too little material in the crucible or allowing the melt level to get too low can be detrimental to the process as well. When the melt level is below 30%, the e-beam is likely to strike the bottom or walls of the crucible which immediately results in breakage.

The fill rate above assumes that the material is fully melted and does not take into account packing density. It should be noted that the crucible liner may need to be loaded multiple times, pre-melted, and topped off in order to achieve the final desired melt level/fill rate. When loading the crucible, do not load more than 80% of the height of the crucible liner.

This calculator is for estimation purposes only.

Crucible Liner Volume (in cc):

Material:

- or -
Density of the material in g/cm³:

Fill Rate %:

Result

See highlighted results that match your result in the table below.

Material Needed to Deposit a 1 Micron Film Calculator

Instructions for use:
Select source type, input distance from source to substrate and Select Material (if not available in menu, manually input Material Density in kg/m³).

This calculator is for estimation purposes only. The estimated mass is that needed to produce a desired film thickness (1 micron in this case) on a flat substrate at a point directly above the source, accounting for the approximate plume distribution of the selected source type. It does not account for any expected nonuniformity in thickness over a larger substrate area. More complex geometries, e.g. those with offset and/or tilted sources, may have higher material requirements. The estimated mass is for the film deposition only; additional margin should be included to account for loss during ramp-up, burn-in, stabilisation and ramp-down.

Source:

Distance of source to substrate (in cm):

Material:

- or -
Density of the material in kg/m³:

Multiplier:

Mass for 1 micron layer

Ordering Table

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Material	Description	Size	Quantity	Purity	Part Number	Price	In Stock	Add To Cart
Material	Description	Size	Quantity	Purity	Part Number	Price	In Stock	Add To Cart
Tungsten Oxide	TUNGSTEN OXIDE PIECES, WO3, 99.99% PURE, 3-12MM PIECES, 25 GRAMS	3mm - 12mm Pieces	25 g	99.99%	EVMWOX3-12A	$92.00
Tungsten Oxide	TUNGSTEN OXIDE PIECES, WO3, 99.99% PURE, 3-12MM PIECES, 50 GRAMS	3mm - 12mm Pieces	50 g	99.99%	EVMWOX3-12B	$112.00
Tungsten Oxide	TUNGSTEN OXIDE PIECES, WO3, 99.99% PURE, 3-12MM PIECES, 100 GRAMS	3mm - 12mm Pieces	100 g	99.99%	EVMWOX3-12D	$167.00
Tungsten Oxide	Tungsten Oxide Pieces (3mm - 12mm Pieces, 1 kg, 99.99% pure)	3mm - 12mm Pieces	1 kg	99.99%	EVMWOX3-12KG	P.O.R.
Tungsten Oxide	TUNGSTEN OXIDE PIECES, WO3, 99.99% PURE, 3-12MM PIECES, 500 GRAMS	3mm - 12mm Pieces	500 g	99.99%	EVMWOX3-12T	$601.00