Cell Lab high-purity Al₂O₃ rectangular crucible covers provide thermal stability and chemical resistance up to 1600 °C — ideal for calcination, metal casting and ceramic processing applications.
Cell Lab high-purity Al₂O₃ rectangular crucible covers provide thermal stability and chemical resistance up to 1600 °C — ideal for calcination, metal casting and ceramic processing applications.

Cell Lab Covers for High-Purity Alumina (Al₂O₃) Boat Crucibles [Rectangular Type]

Cell Lab Covers for High-Purity Alumina (Al₂O₃) Boat Crucibles [Rectangular Type] Protective ceramic lids for stable, controlled high-temperature operations General Description Cell Lab high-purity alumina (Al₂O₃) crucible covers are engineered to pair perfectly with rectangular boat crucibles. They offer outstanding...
Vendor: Cell Lab
SKU: CL0795
Product type: Laboratory Supplies
£6.00
£6.00
Size: Cover for 50x20x20 mm
Subtotal: £6.00
Cell Lab high-purity Al₂O₃ rectangular crucible covers provide thermal stability and chemical resistance up to 1600 °C — ideal for calcination, metal casting and ceramic processing applications.

Cell Lab Covers for High-Purity Alumina (Al₂O₃) Boat Crucibles [Rectangular Type]

£6.00
Cell Lab high-purity Al₂O₃ rectangular crucible covers provide thermal stability and chemical resistance up to 1600 °C — ideal for calcination, metal casting and ceramic processing applications.

Cell Lab Covers for High-Purity Alumina (Al₂O₃) Boat Crucibles [Rectangular Type]

£6.00
Size: Cover for 50x20x20 mm
Description
Description
x

Cell Lab Covers for High-Purity Alumina (Al₂O₃) Boat Crucibles [Rectangular Type]

Protective ceramic lids for stable, controlled high-temperature operations

General Description

Cell Lab high-purity alumina (Al₂O₃) crucible covers are engineered to pair perfectly with rectangular boat crucibles. They offer outstanding thermal stability, mechanical strength and corrosion resistance, providing a reliable seal to reduce contamination, prevent spillage and maintain a low-oxygen atmosphere during calcination, metal casting or ceramic material synthesis.

With > 99 % purity and a maximum working temperature of 1600 °C, these covers are ideal for use in laboratories, furnaces and high-temperature processing environments across the materials, metallurgical and chemical industries.

Key Features

  • High Purity > 99 % Al₂O₃: Ensures superior thermal stability and chemical inertness even under extreme conditions.

  • Excellent Thermal Shock Resistance: Withstands rapid temperature changes without cracking or deformation.

  • Low Oxygen Operation: Maintains a controlled environment to minimise oxidation and contamination during calcination.

  • Precise Fit for Rectangular Crucibles: Reduces heat loss and prevents liquid splashes during heating processes.

  • Customisable Dimensions: Covers can be manufactured to specific sizes to match any crucible type on request.

Technical Specifications

Property Specification
Material High-purity Alumina (Al₂O₃) > 99 %
Maximum Use Temperature 1600 °C
Form Type Rectangular Boat Crucible Cover
Surface Finish Smooth ceramic finish with uniform thickness
Customisation Dimensions and tolerances available upon request

Note: Consumable products are non-returnable and non-refundable. Quality issues must be reported within 1 week of delivery.

Applications & Industries

  • Chemical calcination and ceramic sintering

  • Metal casting and alloy melting

  • Semiconductor and photolithography component fabrication

  • Laboratory research and high-temperature material testing

  • Controlled atmosphere thermal treatment

FAQ

Q1: Why use a crucible cover during calcination or sintering?
A1: It reduces oxygen exposure and prevents splattering or loss of volatile substances, ensuring more consistent processing results.

Q2: Can these covers be used with non-rectangular crucibles?
A2: Yes. Custom round or elliptical designs are available upon request to fit different crucible geometries.

Q3: How should I prepare the cover before first use?
A3: Dry the cover in an oven at 105 °C for 2 hours to remove moisture, then heat/cool slowly (< 5 °C per minute below 1200 °C).

Q4: Are these covers resistant to acidic or alkaline corrosion?
A4: They are resistant to most chemicals but not recommended for use with strong acids or alkalis.

Q5: Is there a matching alumina crucible series available?
A5: Yes. Cell Lab offers a complete range of high-purity Al₂O₃ crucibles in various shapes and capacities for perfect compatibility.

Shipping & Return
Shipping & Return
x

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.

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