Zirconia Bulk Fibres 2200°C

Bulk Fibres 2200°C

Zirconia bulk fibres Type ZYBF are yttria stabilized zirconia fibres available in three different forms, all having useful properties up to 2200°C. These polycrystalline fibres can be vacuum formed into rigid shapes, placed into cavities as loose fill insulation, or added to ceramic bodies and coatings for reinforcement. They are differentiated by fiber length, surface area, crystallite size and porosity. Typically, these fibres are 6 to 10 microns in diameter and have a serrated outside surface.

Zirconia Fibres length

  • ZYBF1 : ~0,5 - 1 cm
  • ZYBF2 : ~200 µm
  • ZYBF-5 : ~500 µm

Zirconia bulk Fibre applications

  • ZYBF can be vacuum formed into rigid shapes.

  • ZYBF is used as an additive in ceramic fibre vacuum formed products to improve refractoriness.

  • ZYBF can be added to our Zirconia Cement Type ZR-CEM and used as a coating or as a filler for holes, bonding of mis-matched surfaces, and repairing cracks and openings in furnace walls composed of zirconia insulation.

  • ZYBF can be placed into cavities as loose fill insulation or used as furnace packing.

  • ZYBF is used as thermal insulation in many industrial furnace applications. It is ideal for applications where an insulation exhibiting extremely low thermal conductivity is required.

  • ZYBF is used in aggressive chemical environments due to its high purity stability and stability. It is stable in vacuum, inert or reducing atmospheres.

Technical data

Properties

ZYBF-1

ZYBF-2

ZYBF-5

Nominal Composition, Wt% Calcined ½ hour at 950°C

 

 

 

ZrO2*

90

90

90

Y2O3

10

10

10

Trace Elements

<1

<1

<1

Bulk Density, g/cm3 (lb/ft3)

0.12 (7.5)

0.34 (21)

0.25 (16)

Weight % H2O

2 - 3

0.05 - 0.2

0.05 - 0.2

Weight Cl-

1.5 – 2.0

<0.1

<0.1

Loss on Ignition, ½ hour at 950°C

4 - 6

0.1 – 0.4

0.1 – 0.4

BET Specific Area, m²/g

75

4

0.4

Pierce Adsorption Mesopore

 

 

 

Median Pore Diam1 A

75

1300

2600

Standard Deviation1 A

29

94

110

Median Pore Diam2 A

50

27

23

Standard Deviation2 A

19

15

12

Pierce Desorption Mesopore

 

 

 

Median Pore Diam1 A

60

1100

2700

Standard Deviation1 A

23

85

160

Median Pore Diam2 A

49

28

34

Standard Deviation2 A

17

15

18

* 1 – 2 wt% hafnia occurs naturally with zirconia and does not affect performance.

1 Based on Pore Volume

2 Based on Surface Area

HT° Bulk Fibres (706.84k)

Technical data sheet: high temperature bulk fibres.