Technical Ceramic FDM Filament

Silicon Carbide Ceramic Filamet™ — 1.75 mm, 0.5 kg

Print silicon carbide (SiC) green parts on the FDM printer you already own. Loaded at 63–68% by weight, this Filamet™ lets researchers prototype with one of the hardest known ceramics — the same chemistry behind cemented carbide tooling, microwave susceptors and semiconductor process hardware.

63–68% Silicon Carbide Ultra-Hard Ceramic Microwave Susceptor Semiconductor Research Material
The Virtual Foundry Silicon Carbide Ceramic Filamet 1.75mm 0.5kg spool

An ultra-hard ceramic, now printable on a desktop FDM

Silicon Carbide Ceramic Filamet™ loads 63–68% SiC into a printable polymer carrier so any FDM printer with a hardened steel nozzle can extrude geometry that, after binder burnout, is silicon carbide ceramic. SiC is one of the hardest engineered ceramics ever produced — outranked only by a handful of materials including diamond and cubic boron nitride.

Industrial SiC powers cemented carbide tooling, abrasive media, microwave susceptors, semiconductor handling components, and thermally stable structural ceramics. With Filamet™ you can prototype in this material on your existing print farm — no powder bed, no slip casting, no green machining.

Research material — sintering schedule by user. TVF has not yet conducted formal sintering trials on this Filamet™. Green prints are immediately useful for prototyping, fixturing and proof-of-geometry; researchers seeking fully sintered parts will need to develop a custom firing schedule for their kiln and ballast configuration.

How it works — the 4-step process

1

Print

Print on any FDM printer with a 0.6 mm hardened steel nozzle. SiC is highly abrasive — brass nozzles will not survive.

2

Pack

Nest the green part in alumina or graphite ballast inside an alumina crucible. SiC behaves well in inert/reducing burnout environments.

3

Sinter (R&D)

No published TVF sintering schedule yet — SiC sintering typically requires very high temperatures and atmosphere control. A custom recipe is required for fully dense parts.

4

Finish

Use green parts for fixtures and prototypes, or fired parts for hard-ceramic geometry. Diamond tooling is recommended for any post-fire machining.

Why silicon carbide

Among the hardest ceramics

SiC sits near the top of the hardness chart — the reason it dominates abrasive papers, cutting tools and wear-resistant components.

Microwave susceptor

Couples efficiently to microwave fields — widely used as a susceptor in microwave processing and as a heating element material.

Semiconductor-grade chemistry

SiC is the substrate of choice for high-power, high-temperature semiconductor devices — this filament shares the bulk chemistry.

High-temperature stability

Once sintered, SiC retains mechanical properties at temperatures where most metals creep or oxidise.

Geometry on demand

SiC is notoriously hard to shape after firing — printing the green part lets you build complex geometry before the ceramic ever hardens.

USA-made, fully supported

Manufactured in South Central Wisconsin by The Virtual Foundry. Direct technical support for research and development teams.

Specifications

Specification Details
Ceramic content (post-burnout) 63.0–68.0% silicon carbide
Filament density 1.88–1.95 g/cc
Diameter 1.75 mm (±0.05 mm)
Spool weight 0.5 kg
Sintering schedule No TVF-published schedule — user must develop
Required nozzle 0.6 mm hardened steel
Linear shrinkage Schedule-dependent — characterise during R&D firing
Hygroscopicity Less hygroscopic than PLA — do NOT dry
Origin Made in South Central Wisconsin, USA

Printing tips

  • SiC is highly abrasive — hardened steel nozzle is mandatory
  • Filawarmer recommended for prints over 4 hours
  • Direct drive preferred — minimises filament path stress
  • Document your sintering schedule — the community is small but active

Common applications

  • Microwave susceptors and heating elements
  • Cemented carbide tooling research geometry
  • Abrasive tooling and wear-component prototypes
  • Semiconductor process fixtures and handling
  • High-temperature ceramic structural prototypes
  • University and industrial materials research

What you can make

Silicon Carbide Filamet spool
Silicon Carbide Ceramic Filamet™ spool — ready to print
Half spool of SiC ceramic filament
Dark grey-blue SiC composite — ready for green-part prototyping

Frequently asked questions

Has TVF developed a sintering schedule for this material?

No — sintering trials have not been conducted on this Filamet™. Customers can extrude green parts immediately for prototyping and proof-of-geometry, but a fully sintered SiC ceramic part requires a custom firing schedule. SiC sintering typically demands very high temperatures and an inert or reducing atmosphere.

What can I do with green (un-sintered) SiC prints?

Plenty — green parts are useful as form-fit fixtures, dimensional studies, microwave coupling experiments at low power, polymer-matrix wear samples, and as a feedstock for your own debinding and sintering R&D programme.

Will this destroy a brass nozzle?

Yes — quickly. SiC is one of the hardest abrasives in the world. A brass nozzle will lose its bore geometry within hours of printing. Always run a 0.6 mm hardened steel or tungsten carbide nozzle.

How does SiC compare to other TVF ceramics?

SiC is the hardest ceramic in the lineup and targets technical/industrial R&D. Zirconium silicate is the workhorse refractory; porcelain is the art-and-tableware ceramic with a published sintering recipe. Pick SiC when hardness, microwave coupling or semiconductor compatibility is the driver.

Can I machine the green part?

Yes — green Filamet™ behaves like a stiff polymer composite and can be drilled, sanded or milled with conventional tooling. After firing, expect to need diamond tooling for any further shaping — that is the nature of dense SiC.

What else you’ll need

TVF FireX Sintering Kiln

Programmable kiln suitable for ceramic sintering R&D — develop your own SiC schedule with full control.

Other Ceramic Filamets

Porcelain and zirconium silicate ship with proven schedules — useful baselines while you develop your SiC recipe.

Made in South Central Wisconsin, USA. World-class technical support provided for all TVF products.

(TVF-FILAMET-SIC-175)

SKU TVF-FILAMET-SIC-175
Brand The Virtual Foundry
Shipping Width 0.220m
Shipping Height 0.080m
Shipping Length 0.220m

Be The First To Review This Product!

Help other 3DPrintergear users shop smarter by writing reviews for products you have purchased.

Write a product review