Wear Resistant Precision Ceramic Components 99% Al2O3 Alumina
Ceramic Cylinder
Product Description
Alumina is the most cost effective and widely used material in the
family of engineering ceramics. The raw materials from which this
high performance technical grade ceramic is made are readily
available and reasonably priced, resulting in good value for the
cost in fabricated alumina shapes. With an excellent combination of
properties and an attractive price, it is no surprise that fine
grain technical grade alumina has a very wide range of
applications.
Key properties
Hard, wear-resistant
Excellent dielectric properties from DC to GHz frequencies
Resists strong acid and alkali attack at elevated temperatures
Good thermal conductivity
Excellent size and shape capability
High strength and stiffness
Available in purity ranges from 94%, an easily metallizable
composition, to 99.5% for the
Typical Uses
Gas laser tubes
Wear pads
Seal rings
High temperature electrical insulators
High voltage insulators
Furnace liner tubes
Thread and wire guides
Electronic substrates
Ballistic armor
Abrasion resistant tube and elbow liners
Thermometry sensors
Laboratory instrument tubes and sample holders
Instrumentation parts for thermal property test machines
Detailed Images
Properties Sheet:
| Properties | Units | 95 Alumina | 99 Alumina | Zirconia |
| Density | ɡ / cm3 | 3.65 | 3.92 | 5.95 - 6.0 |
| 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 | Mpa | 1400 | 1650 | 1300 - 1365 |
| Flexural Strength @ Room Temperature | Mpa | 280 | 310 | 950 |
| Flexural Strength @ 700℃ | Mpa | 220 | 230 | 210 |
| Compressive Strength@Room Temperature | Mpa | 2000 | 2200 | 2000 |
| Fracture Toughness | Mpa * m½ | 3.8 | 4.2 | 10 |
| Heat Conductivity @ Room Temperature | W / m * k | 18 - 25 | 26 - 30 | 2.0 - 2.2 |
| Electrical Resistivity @ Room Temperature | Ω*mm2 / m | ＞1015 | ＞1016 | ＞1015 |
| Max Application Temperature | ℃ | 1500 | 1750 | 1050 |
| Resistance to Acid Alkaline | / | High | High | High |
| Dielectric Constant | / | 9.5 | 9.8 | 26 |
| Dielectric Strength | KV / mm | 16 | 22 | / |
| Thermal Shock Resistance | Δ T ( ℃ ) | 220 | 180 - 200 | 282 - 350 |
| Tensile Strength @ 25℃ | Mpa | 200 | 248 | 252 |
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Company information
Who Are We?
Mingrui has years of professional OEM experience in manufacturing
industrial ceramic products. And very advanced technologies in the
production of zirconia and alumina ceramic rod, ceramic tube,
ceramic plate, ceramic ring, ceramic shaft, ceramic plunger,
ceramic valve, ceramic sleeve, ceramic nozzle, and semiconductor
ceramics, etc. They are applicable to Electrical, Appliance,
Mining, Oil & Gas, Energy & Power, Food & Medical, Chemistry,
Agriculture, Aerospace, even other high-end fields.
We, an advanced technical team with 10 senior engineers,more than
80 technicians and 100 equipment machines, taking one-stop
production, from the raw material (powder) to final products,
control the quality of every production link well.
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
processing.
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. Your advice and visit is our best
welcome!
Our products with some certificates, such as , CE, TUV, etc..
Factory Show
Production Process Show
We carry out one-stop production, from the raw material ( powder )
to final products, control the quality strickly of every production
link.
Packaging and Shipping
Custom Ceramic Cylinders will be wraped in paper first
individually, then packed in bubble bags, finally put in standard
export carton packing, or OEM packing..
Shipped by Express ( DHL, TNT, UPS, Fedex, EMS ), Air, or Sea
transportation.
