MSDS File
Product Overview
Neodymium Oxide Evaporation Materials (Nd2O3) is a ceramic evaporation material for depositing oxide thin films used in optical, dielectric, electronic, magnetic, protective, or research applications. Many oxides have high melting temperatures and can partially dissociate or lose oxygen during evaporation, making electron-beam evaporation a common process option. Source density, pellet or piece geometry, crucible compatibility, oxygen background, deposition rate, and substrate conditions can all affect film stoichiometry and microstructure.
Evaporation Behavior and Process Considerations
Electron-beam evaporation is frequently evaluated for ceramic oxides because many have high melting temperatures. During heating, oxygen can be lost or the source can partially dissociate, so oxygen partial pressure, substrate temperature, deposition rate, and any post-deposition anneal may need optimization. The source should be conditioned gradually to minimize cracking, spitting, and sudden outgassing.
Technical Data
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Purity | 99.9% – 99.999% (3N–5N) | Minimizes contamination in optical/electronic films |
| Form | Powder / Granules / Pellets | Matches evaporation source requirements |
| Particle Size | 1–5 mm (granules) or custom | Influences melting uniformity |
| Melting Point | ~2233°C | Suitable for high-temperature e-beam evaporation |
| Moisture Content | Low (controlled) | Prevents vacuum instability |
| Packaging | Vacuum-sealed, inert-packed | Maintains material integrity |
| Material | Key Advantage | Typical Application |
|---|---|---|
| Neodymium(III) Oxide (Nd₂O₃) | Strong optical absorption bands, high index | Optical & photonic films |
| Yttrium Oxide (Y₂O₃) | Excellent thermal stability, transparent films | Dielectric & optical layers |
| Cerium Oxide (CeO₂) | Oxygen storage & redox capability | Catalytic & functional coatings |
| Lanthanum Oxide (La₂O₃) | High dielectric constant | Electronic thin films |
| Question | Answer |
|---|---|
| Can Nd₂O₃ purity be customized? | Yes, purity levels from 3N to 5N are available depending on application requirements. |
| Is Nd₂O₃ suitable for thermal evaporation? | It can be used in thermal systems, but e-beam evaporation is generally preferred due to its high melting point. |
| Does the material absorb moisture? | Nd₂O₃ is mildly hygroscopic; vacuum storage and pre-baking are recommended. |
| Can particle size be tailored? | Yes, powder, granule, pellet, and tablet forms can be supplied according to equipment needs. |
| Which industries use Nd₂O₃ films most? | Optics, photonics, electronics, advanced materials research, and display technologies. |
Typical Thin-Film Applications
- Optical, dielectric, transparent conductive, magnetic, protective, or functional oxide films
- Displays, photovoltaics, sensors, semiconductors, and multilayer optical coatings where applicable
- Research on composition, oxygen content, phase, and post-deposition treatment
Source Form and Ordering Considerations
For quotation, provide the material or formula, purity, desired source form and size, quantity, evaporation method if known, and any crucible, boat, or e-beam hearth constraints. For compound materials, include the target film composition or application when possible so that source form and process risk can be reviewed together. TFM can supply pellets, pieces, granules, tablets, or other custom forms subject to material manufacturability.
Frequently Asked Questions
Is Neodymium Oxide commonly evaporated by electron beam?
Electron-beam evaporation is frequently evaluated for high-melting ceramic oxides because it can provide localized heating. The exact method depends on the oxide, source form, and required film properties.
Can Neodymium Oxide lose oxygen during evaporation?
Yes. Some oxides can partially dissociate or become oxygen-deficient under vacuum heating. Oxygen partial pressure, substrate temperature, deposition rate, and post-annealing can influence the final film composition.
Why can oxide evaporation sources spit or crack?
Rapid heating, trapped gas, porosity, and thermal gradients can cause cracking or particle ejection. A gradual conditioning ramp and stable source geometry help reduce these effects.
Does the deposited film always match the composition of Nd2O3?
Not always. Preferential evaporation, oxygen loss, decomposition, and substrate conditions can shift film chemistry or phase relative to the source material.
What source form is suitable for Neodymium Oxide?
Pellets, tablets, pieces, or granules may be used depending on the e-beam pocket or crucible. A dense and mechanically stable source form is usually easier to condition reproducibly.
What information should I provide for a Neodymium Oxide quotation?
Provide formula or composition, purity, source form and size, quantity, evaporation method, source-holder dimensions, and any film-composition or documentation requirements.
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