PRODUCTS
Hot Zone For Sapphire Growth
Material: Tungsten, Molybdenum, Molybdenum-Lanthanum, TZM, and Tantalum
Features
|
Material: |
Tungsten, Molybdenum, Molybdenum-Lanthanum, TZM, and Tantalum |
|
Purity: |
99.95% |
|
Density: |
10.2g/cm3(Mo),19.3g/cm3(W) |
|
Type: |
Crucibles, Heaters, Tubes, Heat Insulation Screens, Supports, Covers etc. |
|
Surface: |
Cold Rolled, Ra Less Than 1.6 |
|
Size: |
Per drawings |
Product Description
The hot zone is the critical high-temperature environment inside a sapphire growth furnace, responsible for maintaining thermal stability and ensuring uniform crystal growth. Our hot zones are manufactured from high-purity refractory metals such as tungsten, molybdenum, TZM, and tantalum, offering exceptional heat resistance, minimal deformation, and long service life under extreme conditions.
Features & Properties
✔ High Melting Points – Withstands temperatures up to 3,400°C (W), 2,620°C (Mo), and 3,017°C (Ta)
✔ Excellent Thermal Stability – Ensures consistent heat distribution for crystal uniformity
✔ Oxidation & Creep Resistance – Prevents degradation at elevated temperatures
✔ Low Vapor Pressure – Reduces contamination risk in sapphire crystal growth
✔ Custom-Engineered Designs – Tailored for various furnace configurations
Product Specifications
| Material | Melting Point (°C) | Density (g/cm³) | Thermal Conductivity (W/m·K @ RT) | Strength at High Temperature |
|---|---|---|---|---|
| Tungsten (W) | 3,422 | 19.25 | 174 | Excellent |
| Molybdenum (Mo) | 2,623 | 10.2 | 138 | Good |
| Mo-La Alloy | 2,623 | 10.2 | 138 | Enhanced recrystallization resistance |
| TZM Alloy | 2,623 | 10.22 | 126 | High strength & creep resistance |
| Tantalum (Ta) | 3,017 | 16.6 | 57 | Outstanding oxidation resistance |
Product Standards
✅ ASTM B777 – Tungsten Heavy Alloy Standard
✅ ASTM B386 – Molybdenum & TZM Plate & Sheet Standards
✅ ISO 9001:2015 – Quality Certification
Product Forms
🔹 Hot Zone Assemblies – Complete hot zone solutions for sapphire crystal growth furnaces
🔹 Heat Shields & Reflectors – Improves thermal efficiency in the hot zone
🔹 Crucibles & Melting Pots – High-purity tungsten & molybdenum crucibles for crystal seed melting
🔹 Furnace Components – Heating elements, support structures, and heat insulation parts
Production Method & Production Equipments
Production Method
Powder Metallurgy Processing – High-purity metal powders are compacted & sintered
Vacuum Sintering & HIP Treatment – Enhances density & mechanical properties
Precision Machining & Fabrication – CNC machining for custom designs
Assembly & Quality Inspection – Strict testing for heat resistance & durability
Production Equipments
Vacuum Sintering Furnaces – Ensures high-density, defect-free components
Hot Isostatic Pressing (HIP) Machines – Improves mechanical strength & durability
CNC Machining Centers – Precision cutting, drilling & finishing
Applications & Related Industries
🔹 Sapphire Crystal Growth Furnaces – High-temperature Kyropoulos & HEM processes
🔹 LED & Optoelectronics Industry – Sapphire substrates for LED production
🔹 Semiconductor & Optical Glass Manufacturing – Sapphire used in chip production & optics
🔹 Aerospace & Defense – High-purity refractory metals for extreme heat applications
Synonyms
Sapphire Growth Furnace Hot Zone
High-Temperature Furnace Components
Molybdenum & Tungsten Hot Zone Parts
Sapphire Crystal Growth Equipment
Health & Safety Information
High-Temperature Handling – Requires protective gear & controlled environments
Storage – Store in dry, low-humidity conditions to prevent oxidation
Why Choose Us?
✅ High-Purity Refractory Metals – W, Mo, Mo-La, TZM, Ta available
✅ Custom Hot Zone Solutions – Engineered to meet specific furnace requirements
✅ ISO-Certified Production – Strict quality control for precision & durability
✅ Global Supply & Fast Shipping – Reliable worldwide delivery
Contact Us for Custom Hot Zone Solutions!
Looking for a high-performance hot zone for sapphire growth? Contact us for expert guidance & competitive pricing! 🚀
Physical Properties of Pure Metal Hot Zone
|
Material |
Melting Point |
Density |
Electrical Resistivity |
Temperature Coefficient |
Maximum Operating |
Allowable Surface Load |
|
Molybdenum |
2600℃ |
10.2 g/cm3 |
0.052 Ω·mm2/m |
471 X 10-5/℃ |
1800 ℃ |
20~40 W/cm2 |
|
Tungsten |
3400℃ |
19.6 g/cm3 |
0.051 Ω·mm2/m |
482 X 10-5/℃ |
2400 ℃ |
20~40 W/cm2 |
|
Tantalum |
3000℃ |
16.6 g/cm3 |
0.131 Ω·mm2/m |
385 X 10-5/℃ |
2200 ℃ |
20~40 W/cm2 |
Hot Tags: hot zone for sapphire growth, China, suppliers, buy, for sale, made in China
You Might Also Like
Send Inquiry
