Untra Thin Zirconia Ceramic Disc / Plate Diameter 22mm Thickness 0.2mm
Zirconia Machining and Grinding
While the same design features common to alumina ceramics; blind holes, threads etc. are easily produced in Zirconia the grinding time required is about fifty percent more. The post-grinding surface finish is significantly better than a comparable feature in most aluminas.
Zirconia is much more dense, finer grain and stronger than alumina ceramic. The combination of these physical properties make Zirconia an excellent material choice when strength and wear resistance are required.
Zirconium Oxide ceramic has unique physical and chemical properties as you will see in the properties data sheet below.
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| Properties | Units | Test | ZTA
Value | YTZP (Sintered)
Value | | Density | gm/cc | ASTM-C20 | 4.01 | 6.02 | | Crystal Size, average | Microns | Thin-Section | 2 | 1 | | Water Absorption | % | ASTM-373 | 0 | 0 | | Gas Permeability | -- | -- | 0 | 0 | | Flexural Strength (MOR), 20° C | MPa (psi x 103) | ASTM-F417 | 450 (65) | 1240 (180) | | Elastic Modulus, 20° C | GPa (psi x 106) | ASTM-C848 | 360 (52) | 210 (30) | | Poisson's Ratio, 20° C | -- | ASTM-C848 | 0.23 | 0.23 | | Compressive Strength, 20° C | MPa(psi x 103) | ASTM-C773 | 2900 (421) | 2500 (363) | | Hardness | GPa(kg/mm2)
R45N | KNOOP 1000 gm
Rockwell 45 N | 14.4 (1475)
85 | 12.7 (1300)
81 | | Tensile Strength, 25° C | MPa (psi x 103) | ACMA TEST #4 | 290 (42) | -- | | Fracture Toughness K(I c) | Mpa m1/2 | NOTCHED BEAM | 5 - 6 | 13 | | Thermal Conductivity, 20° C | W/m K | ASTM-C408 | 27.0 | 2.2 | | Coefficient of Thermal Expansion, 25-1000° C | 1 x 10-6/ °C | ASTM-C372 | 8.3 | 10.3 | | Specific Heat, 100° C | J/kg*K | ASTM-E1269 | 885 | 400 | | Thermal Shock Resistance, Δ Tc | °C | NOTE 3 | 300 | 350 | | Maximum Use Temperature | °C | NO-LOAD COND. | 1500 | 1500 | | Dielectric Strength, 6.35mm | ac-kV/mm (acV/mil) | ASTM-D116 | 9.0 (228) | 9.0 (228) | | Dielectric Constant, 1MHz | 25° C | ASTM-D150 | 10.6 | 29.0 | | Dielectric Loss (tan delta) 1MHz | 25° C | ASTM-D150 | 0.0005 | 0.001 | | Volume Resistivity 25° C | ohm-cm | ASTM-D1829 | > 1014 | > 1013 | | Volume Resistivity 500° C | ohm-cm | ASTM-D1829 | 2 x 109 | 2 x 104 | | Volume Resistivity 1000° C | ohm-cm | ASTM-D1829 | 3 x 106 | < 103 | | Impingement | -- | Note 4 | 0.41 | 0.20 | | Rubbing | -- | Note 4 | 0.49 | 0.20 | |
Hot Isostatic Pressure (HIP)
The hot isostatic pressure process improves the physical structure and capability of ceramics by extracting impurities from the material via application of an inert gas. Once the parts are dense enough from the gas exposure, (usually processed in a chamber) they are suitable for medical applications, though all products are inspected before they are supplied to medical resources.
Injection Molding Technology
Injection molding is a process that involves producing parts (usually metals and ceramics) that are intricate in design, such as dental brackets. This process is executed by molding machines, and numerous devices are capable of being produced in a short time-frame. Injection molding is considered a good alternative to previous processing, as standard stamping and machining techniques of the past took more time and expense.
Alumina ceramic screws/nuts and bolts are used in applications where conventional metal or plastic components will not work. Ceramic nuts and bolts are strong, rigid, non-magnetic and operate at high temperature and in corrosive environments.
Alumina Properties sheet :
| Items | Unit | 95% Al2O3 | 99.5% Al2O3 |
| Density | g/cm3 | 3.7 | 3.9 |
| Flexural strength | MPa | 313 | 340 |
| Compressive strength | MPa | 3400 | 3600 |
| Modulus of elasticity | GPa | 350 | 380 |
| Impact resistance | MPa·m1/2 | 4 | 5.1 |
| Weibull modulus | m | 10 | 10 |
| Vickers hardness | HV0.5 | 1800 | 1900 |
| Thermal conductivity | W/mk | 24 | 27 |
| Highest application temperature | °C | 1600 | 1750 |
| Volume resistivity at 20°C | Ω.cm20 | >1014 | >1014 |
| Dielectric strength | kV/mm | 20 | 25 |
| Thermal expansion | X10-6/K | 5.0-8.3 | 5.4-8.3
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Product features :
High strength and no harm to healthy
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 essential.
3. Good wear resistance : Alumina ceramic is the material of choice for alumina wear parts.
4. High Strength not easy to break
5. Glazed and polished surface very nice looking
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.
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.
Our equipment :
