SiC hmoov

 

Silicon Carbide (SiC) hmoov yog siab -cov khoom siv ceramic paub txog nws qhov tshwj xeeb hardness, thermal conductivity, thiab tshuaj tiv thaiv. Nws yog synthetically tsim los ntawm lubAcheson txheej txheem(carbothermal txo ntawm silica) los yog advanced chemical vapor deposition (CVD) txoj kev. SiC hmoov yog dav siv nyob rau hauv abrasives, refractories, semiconductors, thiab advanced ceramics vim nws superior txhua yam thiab thermal zog.

 

🔹 Tshuaj Formula:SiC
🔹 CAS Nr:. 409-21-2
🔹 Qhov tsos:Dub los yog ntsuab crystalline hmoov

 

 

 

Peb lub siab -purity SiC hmoov muaj nyob rau hauv ntau qib kom tau raws li kev lag luam thiab kev tshawb fawb xav tau:

Khoom	Specifications
Purity	99% min, 99.9% (High-Purity Qib)
Particle Loj	0.5µm – 100µm (Customizable)
Qhov ntom	3.21 g / cm³
Mohs Hardness	9.5 (thib ob nkaus rau pob zeb diamond 💎)
Melting Point	~ 2,700℃(4,892℃F)
Thermal conductivity	120-200 W/m·K
Hluav taws xob Resistivity	10³ - 10⁶ Ω·cm (Semi{2}}conductive)

Muaj nyob rau hauv-SiC (hexagonal)thiab-SiC (cubic)siv lead ua qauv.

 

 

 

✅ Siab tawv heev (Mohs 9.5 - Ze ntawm - Pob Zeb Diamond Performance)

Superior rau Alumina & Tungsten Carbide: SiC lub hardness (9.5 Mohs) outperforms alumina (9.0) thiab rivals boron carbide (9.3), ua rau nws zoo tagnrho rau:

Cov cuab yeej txiav: CNC machining inserts rau non{0}}ferrous hlau.

Abrasives: Blasting media rau etching iav / hlau (xws li, 80-grit SiC rau precision nto prep).

Hnav Txheej: Plasma- cov tshuaj tsuag SiC coatings ncua lub neej ntawm cov khoom siv mining.

 

✅ Cov khoom siv hluav taws xob siab (120-200 W / m·K - 3 x Aluminium!)

Thaum tshav kub kub Dissipation Mastery: SiC substrates txias siab - hluav taws xob hluav taws xob 50% sai dua aluminium nitride (AlN).

Electronics: Baseplates rau EV inverters (xws li Tesla's SiC MOSFETs).

LED Kub Sinks: Tiv thaiv lumen lwj nyob rau hauv siab - brightness LEDs.

 

✅ Tshuaj Inertness (Corrosion-Cov pov thawj Txawm nyob ntawm 1,600 degree)

Acid / Alkali Resistance: Withstands HF, HNO₃, thiab molten ntsev (qhov tseem ceeb rau cov tshuaj reactor linings).

Oxidation Resistance: Ua ib txheej SiO₂ passive hauv huab cua mus txog 1,700℃(vs. graphite, uas oxidizes ntawm 600 degree).

 

✅ Tsawg Thermal Expansion (4.0 × 10⁻⁶ /℃- Kev ruaj ntseg nyob rau hauv thermal shock)

Qhov tseem ceeb rau Refractories: SiC kiln txee ciaj sia 1, 000+ thermal cycles tsis tawg.

Daim ntawv thov chaw: Satellite mirrors siv SiC composites kom tsis txhob muaj kev cuam tshuam hauv lub orbit.

 

✅ Tunable Electrical Properties (Wide Bandgap: 2.3–3.3 eV)

Fais fab Electronics: SiC diodes txo lub zog poob los ntawm 70% vs. silicon (xws li, EV ceev chargers).

RF Devices: 5G hauv paus chaw nres tsheb leverage SiC qhov siab -frequency stability.

 

 

 

🔸 Abrasives & Polishing

Lapping Compounds: 0.5µm SiC rau kho qhov muag lo ntsiab muag (xws li, Zeiss lub koob yees duab lo ntsiab muag).

Pob Zeb Diamond Alternatives: Nqi -SiC slurry zoo rau wafer backgrinding (semiconductors).

 

🔸 Refractories

Kev lag luam hlau: SiC crucibles (99% purity) rau melting non-ferrous alloys (Al, Cu).

Foundries: SiC-coated graphite pwm rau precision casting.

 

🔸 Advanced Ceramics & Composites

Lub cev Armor: SiC-Al₂O₃ composites nres 7.62 hli puag ncig ntawm ib nrab ntawm qhov hnyav ntawm cov hlau.

Qhov chaw Telescopes: SiC iav (piv txwv li, James Webb's beryllium-SiC hybrid).

 

🔸 Electronics

Wafer substrates: 150mm SiC wafers rau 1,200V + fais fab khoom siv (Wolfspeed, Infineon).

Sensors: SiC MEMS rau qhov hnyav ib puag ncig (xws li, dav hlau cav ntsuas kub ntsuas).

 

🔸 Automotive & Aerospace

Nres Systems: Porsche's PCCB brakes siv SiC- txhawb nqa carbon fiber.

Rocket Nozzles: SpaceX's Raptor engine liners withstand 3,500℃tso.

 

🔸 Zog

Nuclear Fusion: SiC-SiC cladding rau TRISO roj pebbles (tom ntej-gen reactors).

Roj teeb Anodes: Nano-SiC boosts Li- ion lub neej voj voog los ntawm 300%.

 

 

 

🔹 Quality & Consistency

Batch Traceability: Txhua qhov ntau tau kuaj ntawm XRD (crystallinity) thiab laser diffraction (particle loj).

ISO 9001 tau ntawv pov thawj: Tsawg dua los yog sib npaug rau 0.1% metallic impurities (Fe, Al, Ca).

 

🔹 Customization

Particle Morphology: Spherical (rau coatings) vs. angular (rau abrasives).

Doped Variants: N-type (nitrogen) lossis P-hom (aluminium) rau semiconductor R&D.

 

🔹 Nqi Efficiency

Nqis ntau: 20% txuag ntawm 1-tuj xaj.

Local Warehouses: Tshuag hauv EU/US/Asia kom txiav nqi shipping.

 

🔹 Logistics & Txhawb nqa

Tsuas yog -nyob rau hauv -Tshaj Tawm Sijhawm: 48-teev turnaround rau ceev R & D tej yaam num.

Daim ntawv thov Engineers: Kev sab laj pub dawb rau SiC sib xyaw tsim (xws li, optimizing sinterability).

 

🔹 Sustainability

Recycled SiC: Upcycled los ntawm solar wafer ntau lawm pov tseg (20% qis CO₂ hneev taw).

 

Cim npe nrov: Tuam Tshoj sic hmoov manufacturers, lwm tus neeg, Hoobkas