Barium (Ba) Pieces Evaporation Materials

Overview
Calculators

Barium (Ba) 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 .

Barium (Ba) Specifications

Material Type	Barium
Symbol	Ba
Atomic Weight	137.327
Atomic Number	56
Color/Appearance	Silvery White, Metallic
Thermal Conductivity	18 W/m.K
Melting Point (°C)	725
Coefficient of Thermal Expansion	20.6 x 10-6/K
Theoretical Density (g/cc)	3.51

Z Ratio	2.1
E-Beam	Fair
Thermal Evaporation Techniques	Boat: W, Ta, Mo Coil: W Basket: W Crucible: Metals
Temp. (°C) for Given Vap. Press. (Torr)	10^-8: 545 10^-6: 627 10^-4: 735
UN Number	1400
Comments	Wets without alloying, reacts with ceramics. Not recommended for sputtering.
Suggested QCM Crystal	Silver Crystal: 750-1001-G10****

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

Note:

Due to the highly reactive nature of these materials, packaging in oil is required to reduce the opportunity for oxidation or other reaction. Please click here for the recommended cleaning procedure.

Hazard Notes:

Hazardous Materials: Hazardous shipping charges may apply.

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
Barium	BARIUM PIECES, Ba, 99.5% PURE Ex Sr, 3-6MM PIECES, 200 GRAM LOT, PACKAGED IN MINERAL OIL, HAZARDOUS SHIPPING	3mm - 6mm Pieces	200 g	99.5%	EVMBA253-6MM	P.O.R.
Barium	BARIUM PIECES, Ba, 99.5% MIN. PURE Ex Sr, 3-6MM PIECES, 25 GRAMS, PACKAGED IN MINERAL OIL, HAZARDOUS SHIPPING	3mm - 6mm Pieces	25 g	99.5%	EVMBA3-6MMA	P.O.R.
Barium	BARIUM PIECES, Ba, 99.5% MIN. PURE Ex Sr, 3-6MM PIECES, 50 GRAMS, PACKAGED IN MINERAL OIL, HAZARDOUS SHIPPING	3mm - 6mm Pieces	50 g	99.5%	EVMBA3-6MMB	$415.00
Barium	BARIUM PIECES, Ba, 99.5% MIN. PURE Ex Sr, 3-6 MM RANDOM PIECES, 100 GRAMS, PACKAGED IN MINERAL OIL, HAZARDOUS SHIPPING	3mm - 6mm Pieces	100 g	99.5%	EVMBA3-6MMD	$431.00
Barium	BARIUM PIECES, Ba, 99.5% MIN. PURE Ex Sr, 3−6MM RANDOM PIECES, 500 GRAMS, PACKAGED IN MINERAL OIL, HAZARDOUS SHIPPING	3mm - 6mm Pieces	500 g	99.5%	EVMBA3-6MMT	P.O.R.

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Barium (Ba) Pieces Evaporation Materials

Barium (Ba) Pieces Overview

Barium (Ba) Specifications

Ordering Table

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