Ceramic Alumina Crucible
3 year ago
Refractory Corundum Ceramic Sagger for Kiln Furniture
We offer a variety of ceramic crucibles in aluminum oxide ceramics, mullite-corundum, zirconium oxide ceramics. The regular shape contains square, rectangular, cylinder, tray, boat and so on. In addition to special shape, we could support as well.
The ceramic crucibles are highly resistant to chemical attack, resistant to high temperature, resistant to corrosion. They are commonly used in various metal or non-metal melting materials, or melting items analysis in the lab. also, it's a regular application for smelting &sintering for phosphors, rare earth material, precious metal.
We are capable of dealing with small size ceramic crucible to very big size ones. The max. dimensions can be 400mm x 500mm x 300mm.
The checklist of standard ceramic crucibles
Type 1: Cylindrical ceramic crucibles
| Model# |
Outer diameter (mm) |
Height (mm) |
Wall thickness (mm) |
Volume (ml) |
| JT2030 | 20 | 30 | 1.5 | 10 |
| JT3030 | 30 | 30 | 1.8 | 15 |
| JT3060 | 30 | 60 | 1.8 | 30 |
| JT3645 | 36 | 45 | 2.5 | 30 |
| JT4032 | 40 | 32 | 1.6 | 30 |
| JT4050 | 40 | 50 | 2.5 | 45 |
| JT4342 | 43 | 42 | 1.8 | 50 |
| JT6060 | 60 | 60 | 2.5 | 130 |
| JT5590 | 59 | 90 | 2.5 | 200 |
| JT10040 | 100 | 40 | 5.5 | 200 |
| JT8080 | 80 | 80 | 3.3 | 350 |
| JT100100 | 100 | 100 | 4.0 | 550 |
| JT135160 | 135 | 160 | 6.0 | 2000 |
Type 2: Cone-shape crucibles
| Model# |
Upper OD (mm) |
Bottom OD (mm) |
Height (mm) |
Wall thickness (mm) |
Volume (ml) |
| JT2020-14 | 25 | 14 | 20 | 1.5 | 5 |
| JT3030-18 | 30 | 18 | 30 | 1.7 | 10 |
| JT3438-20 | 34 | 20 | 38 | 1.9 | 20 |
| JT4640-25 | 46 | 25 | 40 | 2 | 30 |
| JT5645-30 | 56 | 30 | 45 | 2.9 | 50 |
| JT5553-48 | 55 | 48 | 53 | 2.5 | 90 |
| JT5768-37 | 47 | 37 | 68 | 3.5 | 100 |
| JT5572-48 | 55 | 48 | 72 | 2.6 | 140 |
| JT-7085-44 | 70 | 44 | 85 | 2.9 | 200 |
| JT7590-50 | 75 | 50 | 90 | 2.9 | 300 |
| JT80110-65 | 80 | 65 | 110 | 3.3 | 400 |
| JT 100120-70 | 100 | 70 | 120 | 3.5 | 600 |
| JT105150-70 | 105 | 70 | 150 | 4.5 | 800 |
| JT113160-75 | 113 | 75 | 160 | 3.5 | 1200 |
| JT125155-80 | 125 | 80 | 155 | 3.5 | 1200 |
Type 3: Other shapes
| Model# | Shape |
Length (mm) |
Width (mm) |
Height (mm) |
Wall thickness (mm) |
Volume (ml) |
| JT272310 | Rectangular | 27 | 23 | 10 | 2 | 5 |
| JT971712 | Rectangular | 97 | 17 | 12 | 2 | 7 |
| JT603015 | Rectangular | 60 | 30 | 15 | 2 | 20 |
| JT1002020 | Rectangular | 100 | 20 | 20 | 2 | 25 |
| JT757540 | Square | 75 | 75 | 40 | 2.5 | 130 |
| JT858540 | Square | 85 | 85 | 40 | 3 | 200 |
| JT15512055 | Rectangular | 155 | 120 | 55 | 5.5 | 550 |
| JT10010040 | Square | 100 | 100 | 40 | 4 | 550 |
| JT16016078 | Square | 160 | 160 | 78 | 6 .5 |
1400 |
The description and main features
1. Material: 99% alumina ceramic, corundum-mullite ceramic, zirconia ceramics, boron nitride optional2. Shape: we supply various shapes, including cylinder, rectangular, square, boat, and so on.
3. Features: all-ceramic crucibles are with excellent chemical resistance, thermal - shock performance.
4. Working temperature: It can be work under max. 1650ºC long term in air, or higher temperature under inert gas
5. Application: They are commonly used in a variety of metal or non-metal melting material, or melting items analysis in the lab, also it's a regular application for smelting & sintering for phosphors, rare earth material, precious metals.
Material Properties
| Property | Units | Materials | ||||
| 99.5%Al2O3 | 99%Al2O3 | 95%Al2O3 | ZrO2 | Si3N4 | ||
| Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥6.0 | ≥3.2 |
| Water absorption | % | 0 | 0 | 0 | 0 | 0 |
| Hardness | HV | 1700 | 1700 | 1500 | 1300 | 1550 |
| Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥600 |
| Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | ≥2500 |
| Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 6 |
|
Max. service temperature
(Non-loading)
|
ºC | 1675 | 1600 | 1500 | 1000 | 1200 |
| CTE (20-800ºC) | 1×10 -6 /ºC | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 3.1 |
| Thermal shock | T(ºC) | ≥250 | ≥200 | ≥220 | ≥300 | ≤1000 |
| Thermal conductivity(25ºC) | W/m.k | 30 | 29 | 24 | 3 | 15~20 |
| Volume resistivity (25ºC ) | ohm.cm | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 | >1 x 10 11 | >1 x 10 12 |
| Insulation strength | KV/mm | 19 | 18 | 18 | 17 | |
| Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 |
|
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Main Product:
Metallized ceramics,
Precision ceramics,
Pepper Grinder Mechanism,
Ceramic Grinding Mechanism,
Alumina Ceramic Plate,
Ceramic Substrate
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