boron nitride ceramics,boron nitride ceramic block,ceramic block,BN block,BN shaft,boron nitride ceramic shaft
Boron nitride ceramics can be used in the manufacture of high-temperature containers for metallurgical melting, semiconductor heat-dissipating insulation parts, high-temperature bearings, thermowells, and glass forming dies.
1) BN is the only machinable ceramic with a processing precision of 0.01mm;
2) Insulation strength 2300v / cm, 8 times Al2O3; RT resistance > 10Ω.cm at 1000 ° C;
3) Its melting point is as high as 2800 ° C, it is a typical electrical insulator, and also an excellent thermal conductor;
4) Excellent thermal shock resistance, returning 100 times from 20 ° C to 1000 ° C without damage;
5) General metals (iron, copper, aluminum, lead, etc.), rare earth metals, precious metals, semiconductor materials (silicon, potassium arsenide), glass, molten salt (crystal, fluoride, slag), inorganic acids, alkalis Does not react.
Most of our products are customized according to customers' drawing or designs,please send you drawings or designs to us,we will check it and send quotation to you.
| type | 99BN |
| Main content | BN＞99% |
| binder | B2O3 |
| density(g/cm³) | 1.95-2.0 |
| flexural strength(Mpa) | 30 |
| compressive strength | 100 |
| electrical resistivity(ohm.cm) | ＞10^14 |
| max working temp(℃)-air | 900 |
| max working temp(℃)-insert gas | 2400 |
| max working temp(℃)-vacuum | 2200 |
| thermal conductivity(w/m.k) | 20 |
| expansion coefficient25-1000 | 1.5 |
Wuxi special ceramic produces BN materials with different composition.
| Material Type | BN-99 | BN + Ca | BN + Al2O3 | BN + ZrO2 | BN + AlN |
| Binder | B2O3 | CaB2O4 | AlBO3 | B2O3 | AlBO3 |
| Density (g/cm3) | 1.95-2.0 | 2.0-2.1 | 2.25-2.35 | 2.9-3.0 | 2.5-2.6 |
| Flexural Strength (Mpa) | 30 | 35 | 85 | 120 | 110 |
| Compressive Strength (Mpa) | 58 | 70 | 150 | 200 | 185 |
| Electrical Resistivity (Ω.cm) | >1014 | >1013 | >1012 | >1012 | >1013 |
| Max. Service Temp. (℃) | 900 | 900 | 1000 | 1000 | 1000 |
| @air condition |
| Max. Service Temp. (℃) | 1900 | 1900 | 1700 | 1800 | 1800 |
| @vacuum condiction |
| Max. Service Temp. (℃) | 2100 | 2100 | 1700 | 1800 | 1800 |
| @inert gas condition |
| Thermal Conductivity (W/mk) | 30 | 32 | 35 | 30 | 55 |
| Thermal Expansion Coefficient | 1.5 | 1.6 | 1.9 | 6 | 3 |
| (25 - 1000℃) (10-6/k) |
Our Company
Wuxi Special Ceramic Electrical mainly produces alumina, Silicon nitride, Zirconia, Steatite, Boron nitride, Cordierite,mullite products, widely used in metal welding, electronic conductor, mechanics, assembling, insulation, chemicals, instrument, textile, nuclear industry, aerial field.We accept trial produce according to the drawing or sample.It usually takes 15 days to finish trial product.Mass produce usually takes 30 days.Goods' package is carton or PLT.It can be negotiable with each other.
We mainly sell goods to toshiba lighting group in Japan and Europe.Our aim is to deliver goods with high quality at quick delivery date.
Quality guarantee:mass produce by 100% inspection
Product Tags:
|
|
Boron Nitride Ceramics Block Shaft Images
|
