INNOVACERA offers boron nitride (BN) ceramic crucibles for melt spinning, with adapter or discharge nozzle configurations available for evaluation. The component design should be selected according to the alloy composition, melting conditions, equipment configuration and required melt outlet geometry.
Product Features
- Designed for Melt-Spinning Equipment: BN crucibles and nozzle components for melt-spinning applications.
- Boron Nitride Ceramic Material: Electrical insulation and thermal properties, subject to the selected BN grade and operating conditions.
- Equipment and Nozzle Compatibility: Crucible dimensions, mounting details and nozzle opening specified according to equipment requirements.
Typical Applications
Boron nitride crucibles and nozzle components can be considered for vacuum melt spinning processes involving compatible molten metals and alloys. Potential use cases include:
- Metal and alloy processing: Containing and discharging selected molten metals or alloys in melt spinning equipment.
- Rapid-solidification research: Laboratory and industrial processes that use melt spinning to produce rapidly solidified materials.
Boron Nitride Material Properties
| Properties | Unit | HB |
|---|---|---|
| Main Composition | - | BN >99% |
| Color | - | White |
| Density | g/cm³ | 2 |
| Three-Point Bending Strength | MPa | 35 |
| Compressive Strength | MPa | 85 |
| Thermal Conductivity | W/(m·K) | 40 |
| Thermal Expansion Coefficient (20–1000°C) | 10⁻⁶/K | 1.8 |
| Max Using Temperature — In Atmosphere | °C | 900 |
| Max Using Temperature — In Inert Gas | °C | 2100 |
| Max Using Temperature — In High Vacuum (Long Time) | °C | 1800 |
| Room Temperature Electric Resistivity | Ω·cm | >10¹⁴ |
| Typical Application | - | High Temperature Furnace |
| High Temperature Electrical Furnace Components | - | ✓ |
| Metal Vaporize Crucible | - | ✓ |
| The Container of Metal or Glass Melting | - | ✓ |
| The Casting Mold Components of The Precious Metal and Special Alloy | - | – |
| High Temperature Support Part | - | – |
| Nozzle and Transport Tube of The Melting Metal | - | ✓ |
| Nitrides Sintering (Sagger and Setter Plate) | - | – |
Please send your component drawing or dimensions, nozzle opening requirements, alloy composition and operating conditions. We’ll use this information to check the design and provide a quote.
Declaration: This is an original article of INNOVACERA®. Please indicate the source link when reprinting: https://www.innovacera.com/product/melt-spinning-boron-nitride-crucible
Frequently Asked Questions
Why Use Boron Nitride Crucibles for Melt Spinning? How Do They Prevent Molten Alloy Contamination?
In rapid-solidification and melt-spinning processes, molten alloys require complete non-wetting containment to prevent nozzle freeze-up and melt pickup. INNOVACERA’s >99% pure boron nitride (HB grade) crucibles provide thermal stability up to 1800°C in vacuum and 2100°C in inert atmospheres, alongside excellent thermal shock resistance. Their natural non-wetting surface ensures smooth, laminar melt ejection through precision slit nozzles without chemical contamination in amorphous and nanocrystalline ribbon production.
Need Tailored Slit Nozzles or Induction Heating Adapters? Where Can You Buy Custom BN Melt Spinning Crucibles?
You can buy tailored boron nitride melt-spinning crucibles and discharge nozzles directly from INNOVACERA. We support custom crucible volumes, tight-tolerance ejection slits (rectangular slots or circular orifices), adapter mounting shoulders, and specialized wall thicknesses to fit laboratory melt-spinners and industrial ribbon-casting systems. Simply submit your alloy melt temperature, nozzle geometry specifications, and chamber drawings to receive engineering verification and quotation.
