Cell Lab 3N5 (99.95%) Chromium Pieces for Optical Coatings, Photovoltaics and Thin-Film Deposition with High Purity, Corrosion Resistance and Adhesion
Cell Lab 3N5 (99.95%) Chromium Pieces for Optical Coatings, Photovoltaics and Thin-Film Deposition with High Purity, Corrosion Resistance and Adhesion

Cell Lab 3N5 (99.95%) Chromium (Cr) Pieces Evaporation Materials

Cell Lab 3N5 (99.95%) Chromium (Cr) Pieces Evaporation Materials High-Purity Chromium for Optical, Decorative, and Functional Thin-Film Coatings General Description Cell Lab 3N5 (99.95%) Chromium (Cr) Pieces are high-purity metallic materials designed for vacuum evaporation, optical coatings, and microelectronic fabrication. Chromium...
Vendor: Cell Lab
SKU: ST0115
Product type: Evaporation Materials
£129.00
£129.00
Size: 0.8~6mm
Weight: 500g
Subtotal: £129.00
Description
Description
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Cell Lab 3N5 (99.95%) Chromium (Cr) Pieces Evaporation Materials

High-Purity Chromium for Optical, Decorative, and Functional Thin-Film Coatings

General Description

Cell Lab 3N5 (99.95%) Chromium (Cr) Pieces are high-purity metallic materials designed for vacuum evaporation, optical coatings, and microelectronic fabrication. Chromium is a silvery, lustrous, and hard metal known for its mirror-like finish, excellent corrosion resistance, and strong adhesion to a wide variety of substrates.

With a melting point of 1,857 °C and vapour pressure of 10⁻⁴ Torr at 1,157 °C, chromium is ideal for thermal and electron-beam evaporation in creating decorative, protective, and conductive films. It plays a critical role in automotive coatings, photovoltaic cell layers, and semiconductor applications due to its stability and reflectivity.

The element’s name originates from the Greek chroma, meaning “colour”, referring to its vibrantly coloured compounds widely used in pigments and finishes.

Key Features

  • High Purity (99.95%) – Guarantees minimal contamination for advanced research and industrial coatings.

  • Exceptional Corrosion Resistance – Forms stable, durable films with high adhesion to various substrates.

  • High Reflectivity & Lustre – Ideal for optical, mirror, and decorative coatings.

  • Thermally Stable – Maintains structure and conductivity under high vacuum and temperature.

  • Versatile Applications – Extensively used in automotive, photovoltaic, and semiconductor industries.

Technical Specifications

Parameter Specification
Material Type Chromium
Symbol Cr
Purity 99.95% (3N5)
Atomic Weight 51.9961
Atomic Number 24
Colour / Appearance Silvery, Metallic
Melting Point 1,857 °C
Thermal Conductivity 94 W/m·K
Coefficient of Thermal Expansion 4.9 × 10⁻⁶ /K
Theoretical Density 7.2 g/cm³
Z Ratio 0.305
Vapour Pressure (10⁻⁴ Torr) ~1,157 °C
Thermal Evaporation Techniques Boat: Cr-Plated W Rods; Coil: W; Basket: W
E-Beam Crucible Liner Material Graphite, Tungsten

Applications & Industries

  • Optical Coatings – Provides reflective and protective layers for mirrors, glass, and lenses.

  • Automotive Finishes – Used in wheels, trims, and bumpers for bright, corrosion-resistant surfaces.

  • Photovoltaic Cells – Serves as a transition or barrier layer in solar and semiconductor devices.

  • Battery Fabrication – Applied in thin-film electrode layers to enhance adhesion and durability.

  • Decorative & Functional Coatings – For jewellery, consumer electronics, and architectural finishes.

FAQ

Q1: Why is chromium preferred for decorative coatings?
Because of its mirror-like lustre, hardness, and oxidation resistance, chromium is the metal of choice for aesthetic and protective applications.

Q2: What evaporation technique is recommended for chromium?
Chromium performs well in both thermal and e-beam evaporation using W or Cr-plated tungsten boats.

Q3: Can chromium be co-evaporated with other metals?
Yes. It is often co-evaporated with nickel, titanium, or aluminium to modify reflectivity and adhesion.

Q4: Is chromium suitable for high-temperature vacuum processes?
Absolutely. Its high melting point and low vapour pressure make it ideal for stable thin-film deposition.

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.