HD Fractalins™

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 Product Highlights
High porosity (75%)
Low density (~1.1 g/cc)
High temperature (up to 1850°C)
Long service life
High purity
FIBERFREE™
 
 
 

FractalBalls™ are high strength, high porosity ceramic balls available in the HMG1 material and HA material. Fractalins™,  HD Fractalins™, and HA Fractalins™ are preformed structures (boards and bricks). Fractalins™ have a density of ~0.7g/cc, and HD Fractalins™ have a density of ~1.1g/cc. HA Fractalins™ are made of  high Alumina material.  HD Fractalins™ are made of HMG1 material.

HD Fractalins™ made of HMG1:
 

Color:  White
Nominal Composition,wt % SiO2: 8% maximum (mostly combined with alumina)
 Al203: ~92%
Other Metal: less than 1%
Density, g/cc: ~1.1 g/cc
Porosity, %: (average) ~ 75%
Maximum Use Temperature,°C:  1850° C
Flexural Strength: 6MPa 
Linear Thermal Expansion: order of 10-6 

FIBERFREE™ Is Here!

HDFRACTALINS™  are unique lightweight non-fiber high temperature insulating boards (and other shapes) which display medium low density and high strength. HD fractalins™ have a higher density than normal Fractalins™. HD fractalins™ have a bulk density of about 1.1g/cc. The boards have excellent low thermal conductivity, high thermal shock resistance heat, and chemical and mechanical stability. FRACTALINS™, made from the HMG1 material, are available in various sizes and shapes for a variety of applications.

Typical applications are furnace linings, hot plate, filters, and kiln furniture. 
 
 

SEM Micrographs of HD Fractalin™ surface

 

TYPICAL USAGE of  HDFRACTALINS™:   HDFRACTALINS™ are excellent material for use as insulation boards in furnace lining and kiln furniture. They have a higher service life compared to any fiber insulating board, due to their mechanical and chemical stability at high temperatures. Other applications include hot plates, gas combustion burners, fire protection and stops. Due to its high porosity, high strength, and high melting point FRACTALINS™ may find other uses. Typical applications are molten metal filtration, oil trapping and recovery, grease filters, hot-gas and steam cleaning filters, and chemical and water purification processes. They may also be used as substrate support for membrane reactors. 

Product Specifications:
FractalBalls™ are high strength, high porosity ceramic balls. 
Fractalins™ and HD fractalins™ are preformed structures (bricks). 
Fractalins™ have a density of ~0.7g/cc, and HD fractalins™ have a density of ~1.1g/cc.

FRACTALBALLS™ may be used as thermal insulation, chemical substrates or as structural materials when bonded with FRACTALPASTE™. 

Use as thermal insulation: FRACTALBALL™ has very low density, low thermal conductivity, high strength, and high melting point; it can be formed into any shape and size and be used in any refractory/insulation parts for high and low temperature application. 
Use for high surface reactivity: FRACTALBALLS™ have very high porosity/low density, high strength, and high melting point. They may be used for high temperature filter and membrane substrate applications. 
Typical Applications are: 

  • Light weight structure materials. 
  • Composite manufacture reinforcement additive for metal, ceramic, or polymer. 
  • Armor, bio-ceramic, abrasive brake pads etc. 
  • Coatings for surfaces (metals, ceramics, polymers.) 
  • Thermal insulation 
  • Fire protection and stops 
  • High temperature furnace linings 
  • Kiln furniture 
  • Gas combustion burners 
  • Repairing or relining refractory cracks and holes 
  • Other applications are: 
  • Filter 
  • Molten metal castings (aluminum, copper, iron) 
  • Steam cleaning
  • Apply as light weight coating for vehicles
  • Oil trapping and recovery; grease filters; chemical and water purification processes 
  • Hot-gas filter substrates for electrode
  • Electronic substrate carriers for bio-reactors
  • Desiccants 
  • Substrates for catalytic converters 
  • Use as light weight structural materials 
FRACTALBALL™ has an unique microstructure, very low density, high strength, and high hardness 
What is the difference between FRACTALINS™ and FRACTAL™ bonded FRACTALBALLS™? 
The FRACTALIN™ material and the FRACTALPASTE™ bonded FRACTALBALLS™ are bulk materials consisting of stacked/bonded FRACTALBALLS™. However, because of differences in the manufacturing process, they display slightly different properties as shown below. FRACTALINS™ are factory products shapes/boards made by a special joining process. The FRACTALPASTE™ bonded FRACTALBALLS™, on the other hand, are made into shapes/boards with the mixing and firing of FRACTALBALLS™ and FRACTALPASTE™ by the user. (See section on how to bond FRACTALBALLS™ with FRACTALPASTE™). The HMG1 material, of which the FRACTALBALLS™ are made, and the FRACTALPASTE™ material may be used up to temperatures in excess of 1850°C. All trade marks on this document belong to MATTECH CORPORATION unless otherwise stated.