Drawing-based graphite crucible assemblies for Physical Vapor Transport (PVT) SiC sublimation growth, including body, lid, liner, sleeve, and seed-holder interfaces.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Purity Target | < 10ppm; < 5ppm reviewed by application | SiC PVT growth is sensitive to metal impurities and outgassing from graphite consumables. |
| Assembly Fit | Defined by drawing and furnace interface | Lid, sleeve, and seed-holder fit influence vapor leakage, thermal symmetry, and repeatability. |
Decision fit
PVT furnace operators and SiC process engineers qualifying repeatable crucible consumables.
Primary proof point
< 10ppm; < 5ppm reviewed by application
SiC PVT growth is sensitive to metal impurities and outgassing from graphite consumables.
RFQ trigger
| Decision Gate | What Buyers Should Check | Acceptance Evidence |
|---|---|---|
| Use-case fit | 4H-SiC and 6H-SiC PVT growth; 6-inch and 8-inch boule development; Replacement consumables for PVT furnaces including custom-built and Aixtron-style systems | Application, furnace duty, and buyer-side validation goal are confirmed before material or process route selection. |
| Parameter baseline | Purity Target: < 10ppm; < 5ppm reviewed by application; Assembly Fit: Defined by drawing and furnace interface | Target ranges, report needs, and pass/fail criteria are written into the RFQ or sample approval plan. |
| Risk closure | Vapor leakage: Review lid, thread, groove, and mating clearances before sample machining.; Uncontrolled carbon source: Evaluate purification and optional coating strategy based on process temperature and run length. | Drawing notes, inspection scope, cleaning, coating, packaging, and traceability controls are agreed before repeat supply. |
| RFQ completeness | PVT furnace application and boule size target; CAD or 2D drawings for crucible, lid, liner, sleeve, and holder; Purity target, ash limits, and coating requirement; Wall thickness, thread, groove, and surface-finish tolerances | Engineering can return a quote direction without avoidable loops for drawing, purity, coating, quantity, or delivery gaps. |
Confirm furnace duty, drawing revision, target purity, operating atmosphere, and replacement cycle before material selection.
Match isostatic graphite grade, purification depth, coating route, and machining allowance to the process risk.
Machine graphite bodies, lids, rings, heaters, carriers, and insulation interfaces against the approved drawing pack.
Align dimensional checks, purity report format, cleaning, vacuum sealing, cushioning, and crate requirements before shipment.
Review how crucibles, hot-zone parts, and insulation fit a PVT growth workflow.
Check the factory workflow for drawing-based graphite part production.
Align inspection reports, sealing, cushioning, and export crate expectations.
Open the related page to continue technical qualification.
Open the related page to continue technical qualification.
Inquiry Email
Attach DWG, STEP, or PDF drawings and include purity, tolerance, quantity forecast, and delivery country.
Instant Chat
WhatsApp Engineering Support
Use WhatsApp for quick engineering clarification before a formal quote.
Yes. A SiC PVT crucible must be reviewed as a growth-system component, with purity, lid fit, seed-holder alignment, and thermal-field interfaces considered together.
Yes. Send the drawing, measured wear notes, target improvements, and annual consumption estimate so we can review material and machining feasibility.
