Evaporation coating materials must possess high melting points, low volatility, and minimal brittleness after high-temperature cooling. When purchasing these materials, many factors need attention—we recommend sourcing from a reliable manufacturer. Below, AtoZmat provides a guide on where to buy Evaporation coating materials.
What Is Evaporation coating materials?
Evaporation coating materials, commonly known as vacuum coating, is a process where materials are evaporated under vacuum conditions and condense onto a glass surface to form a thin film. After high-temperature heat treatment, a strongly adherent film layer forms on the glass surface. Under proper process conditions, the resulting ions or atoms can create functional thin films on the substrate—such as ferroelectric films and flexible films. Currently, over 70 elements, more than 50 inorganic compounds, and various alloy materials are available for selection.
AtoZmat is one of the leading professional Evaporation coating materials manufacturers and R&D companies. This article summarizes key information about Evaporation coating materials.
Key Requirements for Evaporation coating materials
When selecting Evaporation coating materials, both the material and shape must be considered. General requirements include:
- High Melting Point — Most evaporation temperatures (at an equilibrium vapor pressure of 1.3 Pa) range from 1000°C to 2000°C. Therefore, the melting point of the source material must exceed this range.
- Low Equilibrium Vapor Pressure — This prevents or minimizes the source material itself from evaporating at high temperatures and contaminating the deposited film as an impurity. Only with sufficiently low equilibrium vapor pressure can the self-evaporation rate remain minimal, ensuring system vacuum integrity and film purity.
- Chemical Stability — The source material must not react chemically with the evaporant at high temperatures. At elevated temperatures, certain source materials may react or diffuse with the coating material to form compounds or alloys. In particular, the formation of low-eutectic-point alloys can cause the source material to burn out. Therefore, select materials that will not react with or alloy with the coating material.
Product Categories
High-purity thermal Evaporation coating materials include:
- High-purity metals: Al, Sb, W, Ba, Cr, Mo, Nd, Ru, etc.
- High-purity precious metals: Au, Ag, Pt, Pd, etc.
- High-purity metal compounds: ZnO, ZnS, ZnSe, TiN, ZrC, AlF₃, KF, ITO, TiO₂, SiO₂, Fe₂O₃, Al₂O₃, Gd₂O₃, etc.
Case Study: High-Purity Platinum (Pt) Pellets
Here we use AtoZmat’s high-purity platinum pellets as an example to illustrate specific product specifications:
| Property | Specification |
|---|---|
| Appearance | Silvery white |
| Density | 21.45 g/cm³ |
| Melting Point | 1774°C |
| Boiling Point | 3825°C |
| Evaporation Temperature | 2020°C |
| Standard Sizes | φ2 × 5 mm, φ3 × 3 mm, φ3 × 6 mm, or custom sizes available |
About AtoZmat
Interested customers are welcome to contact AtoZmat for Evaporation coating material purchases.
Since its founding, AtoZmat has upheld a customer-first, quality-first philosophy, producing stable and reliable sputtering target products tailored to client requirements.
AtoZMat is a high-tech company with technical guidance provided by professors from MIT, Northwestern, Harvard, and Stanford. We specialize in customizing high-purity, high-density sputtering targets for your magnetron sputtering and pulsed laser deposition (PLD) systems to produce high-quality thin films.
Custom Services
- Custom alloy design: If you wish to research a single-crystal thin film that does not yet exist, you may design the composition yourself, and we will tailor-make dedicated Evaporation coating materials for you. We can also organize experts to provide advice on thin film growth.
- Full thin film fabrication & characterization: We can also produce corresponding thin films for you via magnetron sputtering or PLD, and even perform XRD, SEM, and AFM characterization.
- Lead time: After you submit your requirements and sign the contract, we will deliver your dedicated high-quality target within 4–6 weeks.
- Purity guarantee: The raw material purity for each of our targets is guaranteed at 99.9% or higher; some targets can achieve raw material purity of 99.99%.
- Pricing: Target prices are determined by raw material costs and processing complexity. Please contact us for a detailed quote!