High Strength Black Ceramic Substrate / Black Ceramic Block Square
Shape
Black Ceramic Substrate / Black Ceramic Block
Black Ceramic Substrate / Black Ceramic Block with the charateristic of High Hardness , wear resistant ,
Thermal insulation , Thermal shock resistant , high temperauture
resistant , Mingrui Ceramic Technology can reach tolerance as fine
as 0.001mm, roughness as good as Ra 0.02mm . With good flatness ,
unformity . It is very wear resistant and chemical resistant
material .
■Good smoothness / flatness with less porosity. Excellent in
adhesion with thin film and thick film materials.
Black Ceramic Substrate / Black Ceramic Block 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.
Black Ceramic Substrate / Black Ceramic Block :
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.
Black Ceramic Substrate / Black Ceramic Block Specifications
1. material : Alumina ceramic
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
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
1. 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.
2. Good wear resistance : Alumina eramic 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 |
| 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 |
Machining precision data: (reference data,the actual data is subject to the actual
conditions)
(1)Shaft parts: Radial dimensions can reach 0.0015 mm; roundness
0.001 mm, concentricity 0.0025 mm, roughness 0.01
(2)Hole type parts:Machining minimum aperture of 0.3 mm, depth can
reach 3 mm;The diameter of 1 mm can be radial 0.002 mm;Roughness
0.02-0.04;
(3)Plane processing:The tolerance can reach 0.002 mm, and the plane
is 0.0015mm.
(4)Ceramic thread processing:the internal thread M2 can be grinds,
thread precision GB-7h; The outer thread size is not limited, the
precision GB-6g;
More photos of Black Ceramic Substrate / Black Ceramic Block :
Our High precision Machining Machine :
Laser Cutting machine making holes :
FAQ :
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.
