Engineered Fibres

Engineered Fibres are a family of fibres that have

been developed to meet specific engineering needs.

They are made by melting pure oxides in an electric

furnace and pouring the molten material into a fiberising

chamber. Depending upon the fibre diameter requiredthe

molten material is fiberised either by dropping it onto a

rotating wheelor atomising it with compressed air and

drawing the droplets into fibres in an accelerating air

stream.

SELECTION OF FIBRE TYPE

This is dependent upon the application since certain

applications require fibre without unfiberised particles

whereas in other applications unfiberised materials does

not cause a problem. For advice on the selection of the

correct fibre grade contact your local Thermal Ceramics

distributor.

CLASSIFICATION TEMPERATURE

1100°C

 1200°C

  1260°C

 1425°C

Chopped Fibres

Thermal Ceramics has installed special equipment to

enable the average fibre length to be tailored to suit

individual customer requirements. Mean length can be

controlled from 150 micron up to 25 mm. For the majority

of applicationsthe standard grades of chopped fibres are

sufficient (length is measured using a settling test called

beaker value. The higher the number in this testthe

longer the fibre). The standard grades are :

20 Coarse

Approx. “Beaker value” 200 ml*

 15 Medium

Approx. “Beaker value” 150 ml*

 08 Fine

Approx. “Beaker value” 80 ml*

*Typical Figures TCL QC test

BENEFITS

 Excellent Resistance to chemical attack

 Unaffected by oilwater or steam

 Very low thermal expansion

 Excellent shock resistance

 Good corrosion resistance

 Low moisture absorption

 Low electrical conductivity

 Good tensile strength

 Constant coefficient of friction

TYPICAL APPLICATIONS

Applicationswhere the fibres are used to modify specific

properties of a material : such as wearstrength or fatigue

are as follows :

 Friction Materials

 Mastics

 Paints

 Cements

 Plastics

 Metals