Electrical Insulation 95 97 99 Al2O3 / Al2O3 Alumina Ceramic Sheet
1. Name: Alumina Ceramic sheet
2. Size: as customers' drawing
3. Al2O3 Content: 95%/99% alumina
4. Color: white or ivory
5. Working Temperature: 1600-1700 degree
6. Feature: high mechanical strength, good insulation&high wear
7. Application: for refractory furnace or kiln, electron vacuum decices, spaceflights, pharmaceutical engineerings or other mechanical applications
|Item||Unit Symbol||95% Alumina Ceramics||99% Alumina Ceramics||99.7% Alumina Ceramics|
|Maximum Using Temperature||℃||1600||1700||1700|
|Flexural Strength||MPa (psi x 103)||336||550||550|
|Compressive Strength||MPa (psi x 103)||2000||2500||2500|
|Thermal Conductivity||W/m °K||18-25||30||30.4|
|Thermal Shock Resistance||°C||220||180-220||180-220|
Our alumina substrate has well-balanced properties of insulation,
thermal conductivity and breaking strength. Moreover, one of the
unique properties is its surface roughness. We can provide the
ceramic substrate which is excellent in adhesion with a thin film
and thick film metalization due to fine particles.
■Good smoothness / flatness with less porosity. Excellent in
adhesion with thin film and thick film materials.
■Less variance in outline, plate thickness, slit pitch, etc.
■Minimal warpage, bending, and undulation.
■Physical and chemical properties are stable even under a hot
environment. Excellent in thermal shock resistance. High thermal
conductivity and coefficient of thermal expansion similar to that
■Superior mechanical strength. Products with higher mechanical
strength are also in our lineup.
■Excellent resistance against oil and chemical.
■Excellent in insulation properties, high dielectric breakdown
voltage, high surface resistivity / volume resistivity, and small
■Stable breaking strength, and less variance in shape or
■The high reflective substrate, especially suitable for optical
applications such as LED, is also available.
Alumina (Al2O3) has a wide application due to its versatility and
low material cost. Alumina possesses a high melting point, strong
hardness, and good chemical stability, making it a good material to
withstand high temperature and chemical corrosion. Alumina Plates
and Disks are available in different dimensions and thicknesses.
Call for custom shapes and sizes.
Alumina ceramic plate Specifications
alumina ceramic plate/tile
Alumina plate purity alumina 99.7%
Very small and very large size
High temperature,good abrasaive
Alumina Ceramic Plate Specifications
1. High purity alumina, 99.7%.
2. Very small and very large size can be made.
3. High temperature, good abrasive.
Refractory alumina ceramic substrate/ceramic plate is our main
product.Misson can supply high quality alumina plates with
Very small and very large sized plates can be made.
Fine grinding can made tight tolerance.
High temperature and abrasive resistance is good
Product features :
Applicable to make ceramic wrist watch, watch ctrap, bracelet, ring
and necklace etc. With the property of abrasion resistance,
invariant color, elegance and shining, ceramics are the ideal
decorative material for watch and jewelry industry. All the
ceramics can be customized.
1. High hardness.
2. High heat resistance : Alumina ceramic has excellent thermal
stability,which means that it is
widely used in areas where resistance to high temperatures is
3. Good wear resistance : Alumina ceramic is the material of choice
for alumina wear parts.
4. High electrical resistivity : Alumina is an electrically
5. High corrosion resistance : It is insoluble in water and only
slightly soluble in strong acid and
alkaline solutions. Good chemical stability of alumina leads to
high corrosion resistance.
1. High heat resistance : Zirconia ceramic has excellent thermal
stability,which means that it is widely used in areas where
resistance to high temperatures is essential.
2. Good wear resistance : Zirconia ceramic is the material of
choice for wear parts.
3. High corrosion resistance : It is insoluble in water and only
slightly soluble in strong acid and alkaline solutions. Good
chemical stability of alumina leads to high corrosion resistance.
Alumina ceramic is the most mature of the engineering ceramics,
offering excellent electrical insulation properties together with high hardness and good wear
resistance,but relatively low strength and fracture toughness.Alumina ceramics are generally
white but may also be pink or ivory.The color is derived from either the sintering additives or
impurities in the raw materials.
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|
|Coefficient of thermal expansion||10-6/K||7.9||8.5||10.5|
|Modulus of Elasticity Young's Mod||GPa||280||340||210|
|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|
|Thermol Shock Resistance||△ T ( °C )||220||180-200||280-350|
|Tensile Strength @ 25 °C||MPa||200||248||252|
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
our products more smooth , bright than other competitors.
Alumina ceramic sheet :
1. What kind of industry ceramics do you have ?
We specialized in 95% 97% 99% alumina ceramic and zirconia ceramic
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
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.