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Ceramisis Ltd
29, Harley Street,
London,
W1G 9QR,
England
Tel:44(0)20 7927 6710
Fax:44(0)20 7637 0419
sales@ceramisis.com
 

 

 

                                 

In vacuum substrate heating Vacuum & high temperature materials Vacuum furnace insulation


>Boron Nitride Silica (BNS26) Material Properties.

BNS26 is a unique material combining Boron Nitride with Silica, essentially giving some of the best properties of both Macor and Boron Nitride. BNS26 is a hydrophobic advanced ceramic and is resistant to moisture (unlike boron nitride). It is suitable for the most severe electrical applications, is an excellent refractory material up to 1400C, and has excellent resistance to thermal shock. It is an ideal material for heater element supports and bases.

  • General Technical specifications

Material

BNS26

Units
Volume resistivity @ RT

                          @ 150C

para 6.4x10e14   perp 52.9x10e15

para 2.4x10e13    perp 3.3x10e13

ohm/cm
Surface resistivity @ RT

                          @ 150C

4.2x10e16

1.5x10e15

ohm/cm
Coefficient of Thermal expansion

para 3.0   perp 0.1

x 10-6C
Thermal conductivity @ RT

                               @ 1000C

para 11    perp 29

para 6    perp 16

w/mk
Max use temp. 1400 C
(in oxidizing atmosphere) 1200 C
Bending strength para 64    perp 34 Mpa
Open porosity 6.7 %
Specific Heat @ 25C

                     @ 700C

0.765

1.550

J/gC
Dielectric Strength. 1690 V/mm
Colour White  

If you have a component part you need made or would like pricing on the raw material, contact us by E-mail, Telephone or Fax to discuss. We have years of technical knowledge and experience to help with your applications.

 

 

Tel: +44 (0)20 7927 6710 Fax: +44 (0)20 7637 0419 sales@ceramisis.com Ceramisis Ltd, 29, Harley Street, London, W1G 9QR