High Wear Resistant Porous Alumina Ceramic Plate / Substrate For
High Temperature Resistance
Alumina ceramic Al2O3 content is high, the structure is relatively compact, with special
properties, it is known as the special ceramics. The Al2O3 ceramic materials are densely
arranged six party structure for oxygen ion and aluminum ion, filled in 2/3 with eight sides in the gap, which is the same with natural corundum stable alpha Al2O3 structure, so the ceramics with high melting point, high
hardness, good wear - resistance.
3.Wide scope of application
4.Extremely abrasive resistance performance
Alumina ceramic is mainly used in large power equipment, IC MOS
tube, IGBT chip heat conducting insulation, high frequency power supply, communication, mechanical equipment,
strong current, high voltage, high temperature and other thermal heat insulation parts need products. Physical properties: high thermal conductivity, high voltage
insulation resistance, high temperature resistant, abrasion resistant, high strength
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|
Dongguan Ming Rui Ceramic Technology Co., LTD., a professional
manufacturer of machined ceramic parts, has 10 senior engineers and
lots of technicians. We produce strengthened structure zirconia
ceramic bar, ceramic tube, ceramic shaft, ceramic plate, ceramic
sleeve, ceramic valve, ceramic plunger and ceramic arm. The
products are applicable to instruments, medical instruments, clocks
and electronic products, mills, energy and power, machine and
metals, autocar and military and some other high-end areas.
In cooperation with Tsinghua University, we've achieved great
successes in particular requirements. With our professional
knowledge and business experience in machined ceramic parts,
low-budget and high-performance new ceramic products are made of
high–quality raw materials. The value of our ceramic products is
greatly increased due to the composite technology and precise
Our high efficiency machined ceramic parts, perfect service and
good reputation roots in our professional machined ceramic
technology, continuous innovation, great sincerity and our pursuit
for sustainable development. We have a unique technnology called
“mirror polishing” that has improved the brightness, color,
smoothness of our ceramic parts.
More photos of Thin Ceramic Sheet / Ceramic Disc :
Our High precision Machining Machine :
Laser Cutting machine making holes :
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.