Non Conductive Round Zirconia Alumina Ceramic Block / Beads /
Insulator
keywords: ceramic guide block
| - Product Name: | Alumina Ceramic Block |
| - Typical Characteristics: | 1. High Hardness And Wear Resistance
2. Good Thermal Stability
3. Excellent Dielectric Properties 4. Low Loss Tangent |
| - Typical Applications: | 1. Seal Ring 2. Electrical Insulator 3. Thermocouple Tubes 4. Ballistic Armour 5. Electronic Substrate 6. Grinding Media 7. Wear Components 8. Oxygen Sensors |
Advantage of High Temperature 99% Al2O3 Alumina Ceramic Block
1. Refractory, High Temperature Resistance, Maximum Used
Temperature: 1800 ºC (3272ºF)...
2. Hardness Strength Up To Mohs 9.0; HRA 80-90, Wear Resistance
wear rate 0.68 mm3·m-2·h-1....
3. High Voltage, Good Insulation Performance ,Electrical
Resistivity Up To 10∧14 Ohm.Cm...
4. High Polished Surface Up To Rz0.8(Ra0.1) ...
5. Superior Mechanical Strength, Max 10 MPa.m1/2 Fracture
toughness,
6. Pressure Resistance, Max 2300MPa compressive strength...
7. Anti-High Corrosion Resistance, Such As Acid Alkali
Resistance...
8. Long Service Life...
9. Other excellent property
Detailed Description of High Temperature 99% Al2O3 Alumina Ceramic
Block
Technical Data
| Al2O3 Purity (%) | Density (g/cm3) | Bending Strength (Mpa) | Expansion (X10-6/ºC) (25-800ºC) | Thermal Conductivity (W/(m.R)) | Dielectric Strength (kv/mm) | Max Working Temperature (ºC) | Water Absorption (%) |
| 95 | 3.60 | 364 | 7.6 | 20 | 11 | 1500 | <0.2 |
| 99.7 | 3.90 | 450 | 8.0 | 35 | 12 | 1800 | <0.1
|
Produce and machining
We can produce different sizes and shapes of the sheets for
specific applications to different custom products.Such as
drilling, polishing, stripes, concave and convex, screw holes,
metal parts position and so on
1. Can Be Custom By Drawing Or The Parameter
2.Can Be Offer a Samples Within 1--10 Qty
3. The Shipping Time Of The Samples Within 2days
4. Quick Delivery Via Fedex,Dhl,Ups,Tnt Etc.
For more informations (the price,payment etc), Please contact us or email: admin@cerampart.com
Application
Ceramic block can be used for a device or equipment in the special
environment such as Power isolation, high temperature protection,
durable wear, high and low temperature impact etc...and for the
different device should be requiry different ceramic block shapes,
like: some device need the round sheet be machining 8 hole to
fasten to the box.
Properties of Alumina and Zirconia Ceramic :
| Properties | Units | 95 Alumina | 99 Alumina | ZrO2 |
| Density | g / cm³ | 3.65 | 3.92 | 5.95-6.0g/cm³ |
| Water absorption | % | 0 | 0 | 0 |
| Coefficient of thermal expansion | 10-6/K | 7.9 | 8.5 | 10.5 |
| Modulus of Elasticity Young's Mod | GPa | 280 | 340 | 210 |
| Poisson's ratio | / | 0.21 | 0.22 | 0.3 |
| HV Hardness HV | MPa | 1400 | 1650 | 1300-1365 |
| Flexural Strength @ room temperature | MPa | 280 | 310 | 950 |
| Flexural Strength @700°C | MPa | 220 | 230 | 210 |
| Compressive Strength @ room temperature | MPa | 2000 | 2200 | 2000 |
| Fracture Toughness | MPa *m 1/2 | 3.8 | 4.2 | 10 |
| Heat conductivity @ room temperature | W/ m*k | 18-25 | 26-30 | 2-2.2 |
| Electrical Resistivity @ room temperature | Ω*mm2 /m | >1015 | >1016 | >1015 |
| Max use temperature | °C | 1500 | 1750 | 1050 |
| Resistance to acid alkaline | / | high | high | high |
| Dielectric Constant | / | 9.5 | 9.8 | 26 |
| Dielectric Strength | KV/mm | 16 | 22 | / |
| Thermol Shock Resistance | △ T ( °C ) | 220 | 180-200 | 280-350 |
| Tensile Strength @ 25 °C | MPa | 200 | 248 | 252 |
Company Introduction:
We ( Dongguan Mingrui Ceramic Technology Co., Ltd ) are a
professional manufacturer specialized
in R&D, manufacturing and selling customized all kinds of high
precision zirconia and alumina ceramic parts . Our main products
include ceramic rod , ceramic tube, ceramic plunger, ceramic valve,
ceramic plate, ceramic shaft and bearing , ceramic nozzle etc ,
which are mainly used in industrial fields of Machinery,
Petrochemical oil and gas, Valves, Automotive, Food Processing,
Fluid Handling, Process Control, Thermal Processing, Aerospace,
Defense, Eletronic and Electrical, Textile, Mechanical,
Engineering, Mineral Processing, etc.
We have a full service include mold design and development ,
ceramic forming , precision machining
and precision detection technology. We have achieved great
successes in particular requirements
which is based on cooperating with Tsinghua University and getting
rich experience by our professional technical engineer teams . Our
factory have an unique technical called mirror polishing which
improve
our products more smooth , bright than other competitors.
Related products more photos:
1. What kind of industry ceramics do you have ?
We specialized in 95% 97% 99% alumina ceramic and zirconia ceramic
parts .
2. What kind of molding method do can you supply ?
Dry Pressing , isostatic pressing , grouting , hot-chamber die
casting , tape casting , injection molding, etc, injection molding
and isostatic molding is the most commonly used.
3.What stabilizer do you use when processing ?
Yttria stabilizer is the most commonly used in our industrial
ceramic parts.
4.Can you produce free samples for me ?
Yes usually , we can produce free samples for you but it is up to
the product complexity .
5.What terms can you accept for payment ?
T/T, L/C , Western union , Money Gram and Paypal is welcome , but
paypal and western union only for small -sum payment.
