Precision Ceramics USA
Total Ceramic Solutions for the 21st Century
511
West Bay Street, Suite 350, Tampa, FL 33
 |
|
Boron nitride components engineered by Precision Ceramics USA are ideal for high temperature runner systems in hot metal casting |
An excellent choice for all but the most severe refractory applications, Solid Boron Nitride Grade A is a high performance material possessing a glassy B2O3 binder that creates a hard and dense yet fully machinable product.
Applications
-
High temperature electrical insulators and vacuum furnace supports which require electrical resistivity, high temperature strength, thermal shock resistance and low chemical reactivity
-
Crucibles and containers for high purity molten metals
-
Insulators and source fixtures for ion implantation systems which require high temperature purity and electrical insulation
-
Radar components and antenna windows which require exacting electrical and thermal properties
-
Setterplates for the processing of other advanced materials which require stable, inert surfaces
-
Nozzles for powdered metal spraying
|
Typical Properties |
|
| Binder | Boric Acid |
| Binder Melting Point | 550°C |
| Maximum Use Temperature | |
| Oxidizing vs. Inert | 850°C (1800°C) |
|
Specific Heat @ 700° C (J/g°C): Dieletric Strength (V/mil): Hardness-Knoop (kg/mm2) |
1.610 2400 15.51 - 24.19 |
| Pressing Direction (Para (Perp) | |
|
Resistivity Ohm-cm RT: Loss Tangent @ 8.8 GHz: Dieletric Contant @ RT |
>1014 (>1015) .0017 (.0005) 4.58 (4.15) |
| Thermal Conductivity | |
| (W/m/K) @ 25°C: | 30.13 (33.71) |
| Thermal Expansion Coefficient | |
| (RT to 1500°C) (in/in/°C x 10-6) | 11.85 (3.12) |
| Flexural Strength (psi)* | |
|
@ 25°C: @ 1500°C: |
11000 (16400) 900 (1380) |
| Compressive Strength | |
| @ 25°C: | 20780 (27060) |
|
Density (g/cc minimum) % Open Porosity Oxygen - max.: B2O3 - max.: Calcium - max.: Other Impurities - max.: |
2.00 2.84% 4.0% 4.5% 0.1% 0.2% |
*Based on 4-pt bend test-Sample size = 51mm x 4mm x 3mm
Please click on one of the links below, to view further information on our Boron Nitride product range.
Boron Nitride - General Information
Solid Boron Nitride - Grade AX05
Solid Boron Nitride - Grade HP
Solid Boron Nitride - Grades M & M26
Solid Boron Nitride - Grade ZSBN
Precision Ceramics
USA Inc, 511 West Bay Street, Suite 350, Tampa, FL 33
Website designed & managed by CCB Marketing & Promotion Limited - © MMIX/MMXI - Precision Ceramics USA - all rights reserved