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Silicon Carbide (SiC) has properties that are strikingly similar to diamond: it is one of the lightest, hardest, and strongest technical ceramic materials, with excellent thermal conductivity, acid resistance, and low thermal expansion. Silicon Carbide is an excellent material to use when physical wear is a concern, making it suitable for a wide range of applications.
Wintrustek produces Silicon Carbide ceramics using two methods: sintering and reaction bonding.
Sintered SiC (SSiC) is made from pure SiC powder and non-oxide sintering aids. The material is sintered in an inert atmosphere at temperatures of up to 2000 °C or higher using standard ceramic forming techniques.
Reaction-Bonded SiC (RBSiC or SiSiC) is formed by mixing liquid silicon with penetrating compacts of SiC and carbon. The silicon reacts with the carbon, producing more SiC and binding the original SiC particles together.
Silicon Carbide (SiC) in both forms is highly wear resistant and has excellent mechanical properties.
| Typical Grades | Sintered SiC (SSiC) Reaction-Bonded SiC (RBSiC or SiSiC) |
| Typical Properties | Exceptionally high hardness Abrasion resistant Corrosion resistant Low Density Very high thermal conductivity Low coefficient of thermal expansion Chemical and thermal stability Excellent thermal shock resistance |
| Typical Applications | Blasting nozzle Heat exchanger Mechanical seal Plunger Semiconductor processing Kiln furniture Grinding balls |
Properties / Material Grades | SSiC | RBSiC (SiSiC) |
Color | Dark Grey | Dark Grey |
| Purity(%) | 99.3 | 88-90% |
Density (g/cm3) | 3.15 | 3.10 |
Flexural Strength (MPa) | 400-450 | 350-400 |
Vicker's Hardness(Kg/mm2) | 2650 | 2350 |
Modulus Of Elasticity(GPa) | 415 | 400 |
| Fracture Toughness (MPa·m1/2) | 4 | 3.5 |
Thermal Conductivity (W/m·K) | 90-120 | 80-100 |
Thermal Expansion Coefficient (10-6/K) | 4.65 | 4.03 |
| Max.Working Temperature (ºC) | 1750 | 1380 |
| Volume Resistivity(Ω.cm) | 102-106 | 102-106 |
1. Many grades of ceramic materials to choose from for your applications.
2. Technical support on consultation, design, and prototypes.
3. Fast delivery from prototype to production quantities.
4. In-house capabilities in forming, sintering, machining, glazing, metalizing, brazing, and assembly.
5. Our highly trained team of quality assurance staff uses advanced measuring devices to ensure that our products always meet the customers' requirements.
"It has been over 6 years since your company became our trusted supplier. During all years' requisitions, we were happy with your good quality products and reliable service. Appreciated your previous service with all efforts: patience, reliability, and responsible quality." --- by CoorsTek, Nov. 2023
Q: What is your minimum order quantity (MOQ)?
A: Our minimum order quantity (MOQ) depends on many factors such as product, material, dimensions, etc.
Q: Do you provide free samples?
A: Yes, we are pleased to provide a free sample for your initial evaluation of our materials if we have the sample in stock and if its cost is bearable to us.
Q: Do you accept a trial order before a bulk purchase?
A: Yes, we welcome your trial order to verify our quality before your bulk purchase.
Q: What is your production time?
A: Our production time depends on materials, production methods, tolerances, quantity, etc. Normally, it takes 15-20 days if we have stock material, and it takes 30-40 days if we don't. Please share your specific requirements with us, and we will quote the fastest production time.
Q: What are your payment terms?
A: Our payment terms are T/T, L/C, and PayPal.
Q: What packaging do you use to ensure ceramics are safe?
A: We pack the ceramic products tidily with foam protection inside the carton, plastic box, and wooden box.
Q: Do you accept custom orders?
A: Of course, most of our orders are custom products.
Q: Would you provide an inspection report and material test certificate for our order?
A: Yes, we can provide these documents upon request.
