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95% 99% 99.5% Alumina Ceramic Square Ring / Ceramic Frame Alumina Ceramic Parts
Alumina is kind of structural ceramic with the performance of good
insulation , accurate size,high electrical insulation, high
mechanical strength, high wear and chemical resistance. Using
purity material and particular glazing process ensure to get the
splendid surface.
Innovacera provides state-of-the-art technical ceramic
manufacturing by the most cost-effective processes.
MingRui maintains efficient manufacturing facilities that support quick-turn prototype development and high volume production.
■Good smoothness / flatness with less porosity. Excellent in
adhesion with thin film and thick film materials.
Industrial Ceramic Ring with 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
of silicon.
■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
dielectric constant.
■Stable breaking strength, and less variance in shape or
dimensions.
■The high reflective substrate, especially suitable for optical
applications such as LED, is also available.
This Industrial Ceramic Ring is characterized by its extremely high strength and thermal conductivity. The outstanding surface quality on both sides makes it the perfect companion for any commercial thick film paste and even makes it suitable for a number of thin film applications (sputtering).
With its extremely fine surface quality, Industrial Ceramic Ring is designed especially to meet the highest demands in thin-film technology.
Industrial Ceramic Ring offers consistently reliable and convincing performance even when subject to high thermal and electrical loads in terms of its:
Thermocycling capability
Thermal shock resistance
Flexural strength
Surface quality
Thermal conductivity
Industrial Ceramic Ring Features :
1) High hardness, high strength, high wear and chemical corrosion
resistance, low expansion coefficient. |
All products through the German DIN standards: DIN43724 / DIN43725
/ DIN40680
We only make high purity alumina ceramics
1. High-purity alumina content 99.3% -99.5%, other alumina ceramics
92% -99%.
2. The color of high purity alumina product is milky white, and
other products are pink or white. The higher the purity, the more
transparent the color.
3. Alumina is a refractory material, the higher the purity, the
better the refractory effect
4. After high-purity alumina ceramics are fired and cooled in a
1800-degree high-temperature kiln, the products are not easy to
break when they encounter high temperatures. Other ceramics are
fired at 1500 ºC ~ 1800 ºC.
5. The volume density of high-purity alumina> 3.92 g / cm3 has a
smooth surface and is not easily corroded by chemicals. The bulk
density of other ceramics is> 3.70 g / cm3 ~> 3.85 g / cm3.
6. High purity alumina has good hardness and good wear resistance.
7. High purity alumina products have a longer service life.
Small Ceramic Block /Ceramic Block Insulation :
Alumina substrates can withstand high temperature and maintain high
strength and hardness. Alumina plates also have superb performances
in electrical insulation, high chemical resistance and low thermal
expansion. We have various sizes of semi finished shapes in stock
and are able to conduct custom manufacturing for all kinds of
alumina components.
Industrial Ceramic Ring Specifications
Refractory alumina ceramic substrate/ceramic plate is our main product.Misson can supply high quality alumina plates with competitive prices.
Very small and very large sized plates can be made.
Fine grinding can made tight tolerance.
High temperature and abrasive resistance is good
Quality assurance:
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 | 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 |
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.
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.