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Chromium Cobalt Evaporation Materials

VD0605 Chromium Cobalt Evaporation Materials, Cr/Co

Catalog No.VD0605
MaterialChromium Cobalt (Cr/Co)
Purity99.9% ~ 99.95%
ShapePowder/ Granule/ Custom-made

TFM is a leading producer of high-purity chromium cobalt evaporation materials, meticulously crafted through rigorous quality assurance processes to ensure exceptional product reliability. We offer these materials in a variety of forms, including tablets, granules, rods, and wires, catering to diverse industry needs.

MSDS File

Introduction

Chromium Cobalt Evaporation Materials (Cr/Co) are alloy sources developed for vacuum thin film deposition where mechanical durability, corrosion resistance, and magnetic functionality are required. By combining chromium’s oxidation resistance and structural stability with cobalt’s ferromagnetic characteristics, Cr/Co alloys provide a versatile material system for advanced coating and magnetic film applications.

In thermal and electron beam evaporation processes, alloy uniformity and compositional control are essential for achieving consistent film performance. Pre-alloyed Cr/Co evaporation materials ensure predictable vapor composition and reproducible thin film characteristics across research laboratories and industrial coating systems.

Detailed Description

Chromium (Cr) is known for its hardness, wear resistance, and strong passivation behavior, while cobalt (Co) exhibits high magnetic moment and good thermal stability. When alloyed, Cr/Co materials enable tuning of magnetic, mechanical, and corrosion-related properties in deposited thin films.

Key characteristics include:

  • Pre-Alloyed Homogeneous Structure – Ensures stable and uniform evaporation behavior.

  • Adjustable Cr/Co Ratio – Customizable compositions (wt% or at%) to meet specific magnetic or mechanical targets.

  • High Metal Purity (typically 3N–4N) – Minimizes impurities that may affect film adhesion or magnetic performance.

  • Dense Microstructure – Reduces particle generation and improves deposition stability.

Cr/Co evaporation materials are typically supplied in lump, granule, or pellet form for compatibility with tungsten boats, molybdenum crucibles, or graphite liners. Due to differences in vapor pressure between chromium and cobalt, careful process control is recommended to maintain film stoichiometry during deposition.

In magnetic film applications, chromium can act as a grain refinement or segregation element, influencing coercivity and magnetic anisotropy of cobalt-based films.

Applications

Chromium Cobalt Evaporation Materials are widely used in:

  • Magnetic Thin Films
    Hard disk media research, magnetic recording layers, and spintronic device studies.

  • Wear-Resistant Coatings
    Protective metallic films with improved hardness and oxidation resistance.

  • Microelectronic Components
    Functional layers requiring controlled magnetic or mechanical properties.

  • Decorative & Functional Coatings
    Durable metallic finishes with enhanced corrosion resistance.

  • Advanced Materials Research
    Alloy thin film development and microstructural engineering studies.

Technical Parameters

ParameterTypical Value / RangeImportance
Purity99.9% – 99.99% (3N–4N)Reduces defect formation and contamination
CompositionCustom Cr/Co ratio (wt% or at%)Controls magnetic and mechanical behavior
FormPieces / Granules / PelletsCompatible with evaporation systems
Melting Range~1400–1900°C (composition-dependent)Influences evaporation method selection
Density≥ 99% theoretical (alloyed form)Promotes uniform vaporization
PackagingVacuum-sealed / inert-packedPrevents surface oxidation

Comparison with Related Materials

MaterialKey AdvantageTypical Application
Chromium Cobalt (Cr/Co)Balanced magnetic strength & corrosion resistanceMagnetic & protective films
Pure Cobalt (Co)Strong ferromagnetismMagnetic recording layers
Pure Chromium (Cr)Excellent hardness & oxidation resistanceAdhesion & barrier layers
Cobalt Nickel (Co/Ni)Tunable magnetic propertiesSpintronic devices

Compared to pure cobalt films, Cr/Co alloys can provide improved corrosion resistance and refined grain structure, while offering better magnetic stability than pure chromium layers.

FAQ

QuestionAnswer
Can the Cr/Co ratio be customized?Yes, alloy composition can be tailored to achieve specific magnetic or mechanical properties.
Is the material pre-alloyed?Yes, standard products are supplied as pre-alloyed materials to ensure uniform evaporation.
What deposition methods are suitable?Compatible with thermal and electron beam evaporation systems.
Are custom sizes available?Yes, particle size and pellet dimensions can be customized according to equipment requirements.
Which industries use Cr/Co films most?Magnetic storage research, electronics, protective coatings, and advanced materials R&D.

Packaging

Our Chromium Cobalt Evaporation Materials are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. We take great care to prevent any potential damage during storage and transportation, ensuring the materials arrive in perfect condition.

Conclusion

Chromium Cobalt Evaporation Materials (Cr/Co) provide a reliable and compositionally flexible solution for depositing magnetic and wear-resistant thin films. With controlled alloy ratios, high purity standards, and adaptable supply forms, Cr/Co materials support both advanced research and industrial thin film production.

For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

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FAQ

  • They are high‐purity substances (e.g. metals, alloys, or compounds) used in thermal or electron‐beam evaporation processes to form thin films on substrates.

  • Typically, they’re processed into a form (often ingots, pellets, or wires) that can be efficiently vaporized. Preparation emphasizes high purity and controlled composition to ensure film quality.

  • Thermal evaporation and electron-beam (e-beam) evaporation are the two main techniques, where material is heated (or bombarded with electrons) until it vaporizes and then condenses on the substrate.

  • Thermal evaporation heats the material directly (often using a resistive heater), while e-beam evaporation uses a focused electron beam to locally heat and vaporize the source material—each method offering different control and energy efficiency.

  • Key parameters include source temperature, vacuum level, deposition rate, substrate temperature, and the distance between the source and the substrate. These factors influence film uniformity, adhesion, and microstructure.

  • Evaporation generally produces high-purity films with excellent control over thickness, and it is especially suitable for materials with relatively low melting points or high vapor pressures.

  • Challenges include issues with step coverage (due to line-of-sight deposition), shadowing effects on complex topographies, and possible re-evaporation of material from the substrate if temperature isn’t properly controlled.

  • Common evaporation materials include noble metals (e.g., gold, silver), semiconductors (e.g., silicon, germanium), metal oxides, and organic compounds—each chosen for its specific optical, electrical, or mechanical properties.

  • Selection depends on desired film properties (conductivity, optical transparency, adhesion), compatibility with the evaporation process, and the final device application (semiconductor, optical coating, etc.).

  • Optimizing substrate temperature, deposition rate, and chamber vacuum are critical for ensuring that the film adheres well and forms the intended microstructure without defects.

  • Troubleshooting may involve checking the source material’s purity, ensuring stable source temperature, verifying the vacuum level, adjusting the substrate’s position or temperature, and monitoring deposition rate fluctuations.

While evaporation tends to yield very high purity films with excellent thickness control, it is limited by its line-of-sight nature. In contrast, sputtering can deposit films more uniformly on complex surfaces and is more versatile for a broader range of materials.

 

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