Aluminum Targets


Aluminum (Al) is a silvery white, soft, ductile metal that is the third most abundant element (after oxygen and silicon) and makes up about 8% by weight of the Earth's crust. Aluminum is remarkable for its light weight, strength, durability and for its ability to resist corrosion, due to the formation of an extremely thin yet very strong layer of oxide film. Other useful properties of aluminum are its high electrical and thermal conductivity, and its reflectivity; it is a good reflector of visible light and infrared radiation.


Sputtering is a process of dislodging atoms from a target material, such as a metal, to coat a thin film onto a surface (substrate). One method involves introducing a controlled gas, usually chemically inert argon, into a vacuum chamber, electrically energizing a cathode to establish a self-sustaining plasma, and then accelerating the ions from this plasma into a source material, the target. The target is eroded by the arriving ions via energy transfer and is ejected in the form of neutral particles - atoms, clusters of atoms, or molecules. A substrate is placed in the path of these ejected particles, to be coated by a thin film of the source material.

Thin film deposition uses sputtering to apply coatings of pure materials onto the surface of objects. The coatings are usually in the thickness range of angstroms to microns. Some applications for thin film deposition are the manufacture of mirrors, hard disk drives, electronic components, LEDs, optical coatings, hard coatings on cutting tools, thin film solar cells, and thin-film batteries.

ESPI manufactures high purity aluminum targets in thicknesses starting at 0.001” (.025mm) and diameters of up to 6” (150mm). Whatever your requirement, we can probably make it, just ask.




Atomic Number:


Atomic Weight:



2.6989 gm/cc

Melting Point:

660.37 oC

Boiling Point:

2467 oC

Thermal Conductivity:

2.37 W/cm/ K @ 298.2  K

Electrical Resistivity:

2.6548 microhm-cm @ 20


1.5 Paulings

Specific Heat:

0.215 Cal/g/ K @ 25

Heat of Vaporization:

67.9 K-cal/gm atom at 2467 oC

Heat of Fusion:

2.55 Cal/gm mole

TYPICAL ANALYSES - Impurities in ppm

Material / Purity:
























Aluminum Sputtering Target 2"D X .125"T

3N, 4N, 5N

Aluminum Sputtering Target 2"D X .250"T

3N, 4N, 5N

Aluminum Sputtering Target 3"D X .125"T

3N, 4N, 5N

Aluminum Sputtering Target 3"D X .250"T

3N, 4N, 5N

Aluminum Sputtering Target 4"D X .125"T

3N, 4N, 5N

Aluminum Sputtering Target 4"D X .250"T

3N, 4N, 5N

Targets are made to order and packaged individually. Call or email for additional diameters, thicknesses or custom sizes.


Material Safety Data Sheet - MSDS

 Aluminum MSDS



Technical Data Sheets

Machining Aluminum

Home Page Content Under Periodic Table


Click on the Alloy to go to the Online Catalog page.


Welcome to

ESPI was incorporated in 1950 with a mission to provide a competitive source for high purity metals, metal compounds and alloys. We are a valuable resource for virtually all major universities worldwide, global corporate R&D laboratories, thousands of domestic and international manufacturing companies and all U.S. government research laboratories. ESPI offers unique advantages often unavailable from larger organizations with no minimum order size & all business hour calls are handled by a competent sales representative. Automated answering systems and voice mail are not an option at ESPI.

Located within our fabrication facility is the melting department, forging & shaping areas, and the rod & wire, and sheet & foil departments providing the following manufacturing capabilities:

  • Casting of pure metals and alloys
  • Vacuum arc melting
  • Induction melting
  • Rod and wire drawing/extrusion
  • Sheet, foil and ribbon rolling
  • CNC milling and machining

Tel: 541-488-8311 - Email: - or click the "Live Help/Chat Now" icon, upper right.



ESPI produces and sells 68 elements and dozens of alloys in various forms for your custom needs. Click on the forms below to be directed to detailed information on manufacturing.



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