Cell Lab 3N (99.9%) Magnesium Aluminate Pieces — high-purity MgAl₂O₄ spinel material for optical coatings, refractories, and battery applications. Exceptional thermal resistance, transparency, and corrosion stability for precision thin-film deposition.
Cell Lab 3N (99.9%) Magnesium Aluminate Pieces — high-purity MgAl₂O₄ spinel material for optical coatings, refractories, and battery applications. Exceptional thermal resistance, transparency, and corrosion stability for precision thin-film deposition.

Cell Lab 3N (99.9%) Magnesium Aluminate (MgAl₂O₄) Pieces Evaporation Materials [3–12 mm]

Cell Lab 3N (99.9%) Magnesium Aluminate (MgAl₂O₄) Pieces Evaporation Materials [3–12 mm] High-Strength Spinel Material for Optical Coatings, Refractory, and Battery Research General Description Cell Lab 3N (99.9%) Magnesium Aluminate (MgAl₂O₄) Pieces, also known as spinel (MAS), are synthetic cubic...
Vendor: Cell Lab
SKU: ST0086
Product type: Evaporation Materials
£209.00
£209.00
Size: 3-12mm pieces
Weight: 100g
Subtotal: £209.00
Description
Description
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Cell Lab 3N (99.9%) Magnesium Aluminate (MgAl₂O₄) Pieces Evaporation Materials [3–12 mm]

High-Strength Spinel Material for Optical Coatings, Refractory, and Battery Research

General Description

Cell Lab 3N (99.9%) Magnesium Aluminate (MgAl₂O₄) Pieces, also known as spinel (MAS), are synthetic cubic crystal materials combining high strength, exceptional thermal stability, and chemical inertness. With a melting point of 2,135 °C and excellent shock and corrosion resistance, MgAl₂O₄ is widely used in transparent optical windows, laser domes, refractory linings, and high-temperature furnaces.

Due to its low thermal expansion and high optical transmission (0.2–8 µm), MgAl₂O₄ spinel is also ideal for infrared optics, sapphire fibre coatings, and lithium battery separators. When evaporated, it provides protective and functional coatings that enhance surface durability and oxidation resistance in metals and ceramics.

Key Features

  • High Purity (99.9%) – Ensures minimal contamination for precise thin-film applications.

  • Exceptional Mechanical & Thermal Strength – Operates reliably under extreme heat and stress.

  • High Optical Transparency – Transmits effectively across visible and infrared wavelengths.

  • Superior Corrosion & Shock Resistance – Suitable for harsh industrial and high-power optical environments.

  • Multi-Industry Applications – Used across optics, metallurgy, energy research, and defence sectors.

Technical Specifications

Parameter Specification
Name Magnesium Aluminate
Chemical Formula MgAl₂O₄
CAS Number 12068-51-8
Molecular Weight 142.27 g/mol
Purity 99.9% (3N)
Appearance White
Thermal Conductivity (bulk) 0.147–0.154 W/cm·K
Melting Point 2,135 °C
Density (Bulk) 3.64 g/cm³
Thermal Expansion Coefficient 9.17 × 10⁻⁶ /°C
Specific Heat 0.29
Optical Transmission Range (Visible + IR) 0.2–8 µm
Refractive Index 1.72
E-Beam Compatibility Excellent
Available Particle Size 3–12 mm (customisable)

Applications & Industries

  • Optical & IR Windows – Used for transparent, high-strength windows and sensor domes.

  • Refractory & Furnace Linings – Ensures long-term stability in high-temperature operations.

  • Battery & Energy Materials – Acts as protective coating or separator layer in Li-ion systems.

  • Metal & Alloy Coatings – Enhances corrosion resistance and surface stability at high temperature.

  • Defence & Aerospace Materials – Applied in armours, optical domes, and laser optics.

FAQ

Q1: Why is MgAl₂O₄ preferred over Al₂O₃ for coatings?
MgAl₂O₄ offers better thermal shock resistance and a lower thermal expansion coefficient, making it superior for applications involving rapid temperature changes.

Q2: Can it be used for optical or IR thin-film coatings?
Yes. Its high optical transmission and durability make it ideal for antireflective and protective optical coatings.

Q3: Is MgAl₂O₄ suitable for E-beam evaporation?
Yes, it performs well under E-beam or thermal evaporation, provided temperature and rate are precisely controlled.

Q4: Does Cell Lab provide custom purities or quantities?
Yes. Purity, granule size, and packaging can be tailored to specific R&D or production requirements.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.