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VD0545 Dysprosium Evaporation Materials, Dy

Material Type: Dysprosium
Symbol: Dy
Color/Appearance: Silvery Metallic
CAS Number: 7429-91-6
Purity: 99.5% ~ 99.9%
Shape: Powder/ Granule/ Custom-made

TFM is a leading manufacturer and supplier of high-purity dysprosium evaporation materials, as well as a diverse range of other evaporation products. We provide our dysprosium materials in both powder and granule forms, with customizable options available to meet specific requirements.

Introduction

Dysprosium Evaporation Materials (Dy) are high-purity rare earth metal sources developed for vacuum thin film deposition in magnetic, optical, and advanced functional material systems. Dysprosium is known for its strong magnetic anisotropy, high magnetic moment, and neutron absorption capability, making it particularly valuable in magnetic alloy engineering and research-driven thin film applications.

In physical vapor deposition (PVD) processes such as thermal and electron beam evaporation, rare earth metals require strict purity control and proper handling due to their chemical reactivity. Carefully processed Dy evaporation materials provide stable vaporization behavior and consistent thin film composition for both laboratory-scale experiments and industrial coating systems.

Detailed Description

Dysprosium (Dy) is a silvery rare earth metal with a melting point of approximately 1407°C. It exhibits high magnetic susceptibility and plays a critical role in enhancing coercivity in permanent magnet systems and magnetic multilayer films.

Key characteristics include:

  • High Metal Purity (3N–5N typical) – Minimizes oxygen, carbon, and metallic impurities that may degrade magnetic or electronic performance.

  • Controlled Microstructure – Dense, homogeneous metal ensures stable evaporation and uniform deposition.

  • Customizable Form – Supplied as pieces, granules, or pellets compatible with standard evaporation sources.

  • Stable Vaporization Profile – Suitable for controlled deposition under high vacuum conditions.

Because dysprosium is reactive, particularly at elevated temperatures, storage under vacuum or inert atmosphere is recommended. During evaporation, gradual power ramping helps prevent spitting and ensures stable vapor flux. In reactive deposition environments, oxygen or nitrogen partial pressure must be carefully controlled to achieve desired compound formation.

Dy thin films can serve as magnetic layers, alloying components, or precursors for rare earth oxide and nitride coatings.

Applications

Dysprosium Evaporation Materials are widely used in:

  • Magnetic Thin Films & Spintronics
    Alloying component in rare earth-transition metal magnetic layers.

  • Permanent Magnet Research
    Thin film studies related to coercivity enhancement mechanisms.

  • Optical & Functional Oxide Films
    Precursor material for Dy-containing oxide coatings.

  • Nuclear & Neutron Research (R&D Scale)
    Thin films for neutron absorption studies.

  • Advanced Materials Development
    Exploration of rare earth-based electronic and magnetic systems.

Technical Parameters

ParameterTypical Value / RangeImportance
Purity99.9% – 99.999% (3N–5N)Reduces impurity-related defects
Chemical SymbolDyDefines elemental rare earth source
Melting Point~1407°CSuitable for thermal & e-beam evaporation
FormPieces / Granules / PelletsCompatible with evaporation systems
Density≥ 99% theoreticalEnsures uniform vaporization
PackagingVacuum-sealed / inert atmospherePrevents oxidation

Comparison with Related Rare Earth Metals

MaterialKey AdvantageTypical Application
Dysprosium (Dy)High magnetic anisotropy & neutron absorptionMagnetic thin films
Terbium (Tb)Strong magneto-optical effectsMagneto-optic films
Gadolinium (Gd)High magnetic momentMagnetic & dielectric films
Neodymium (Nd)Key magnet componentRare earth alloy films

Compared to Gd and Nd, dysprosium provides superior coercivity enhancement in magnetic alloy systems, making it valuable for high-temperature magnetic applications and research.

FAQ

QuestionAnswer
Can purity levels be customized?Yes, different purity grades are available depending on application requirements.
Is Dy suitable for thermal evaporation?Yes, it is compatible with both thermal and electron beam evaporation under controlled conditions.
Does dysprosium oxidize easily?Yes, it is reactive and should be stored and handled in inert or vacuum environments.
What forms are available?Pieces, granules, and pellets can be supplied to match equipment compatibility.
Which industries use Dy films most?Magnetic materials research, semiconductor R&D, advanced coatings development, and nuclear research laboratories.

Packaging

Our Dysprosium 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

Dysprosium Evaporation Materials (Dy) provide a high-purity and compositionally reliable source for depositing rare earth metal thin films with enhanced magnetic and functional properties. With controlled purity, flexible supply forms, and secure packaging, Dy materials support advanced magnetic, electronic, and research-driven thin film applications.

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

Ordering Table

Material Size Quantity Purity Part Number
Dysprosium < 5mm 100 g 99.9% EVMDYX5MM-D

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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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