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Overview: Mullite Technic Composite
Our SIZAL®CELL and SIZAL®BOARD range are a complete line of thermal insulators that open the way to many industrial or laboratory applications up to temperatures of 1,800 °C. The mechanical and thermal performance of SIZAL® products guarantee substantial savings in terms of energy and costs.
SIZAL®CELL is a range of non-fibrous insulation products manufactured from alumina microspheres. Ultra-light, SIZAL®CELL is designed for high-temperature applications up to 1,800 °C. The main component of the insulation is a microsphere made from alumina. An exclusive and innovative process allows the industrial production of this unique element. The internal structure of the cell is a honeycomb-like thread that ensures the mechanical quality of the insulation, whatever the temperature of use. A specific binder means the assembly is homogeneous - this particular construction is light and porous and, consequently, insulating and mechanically efficient.
Applications of Mullite Technic Composite
- Insulation panels for industrial or laboratory installations
- Furnace linings (electric and gas)
- Furnace, burner or turbine components.
- Mechanical parts, part supports, and more.
- Repairs
Main Characteristics Mullite Technic Composite
- Guaranteed use up to 1,800 °C
- Density up to 700 kg/m3
- Low thermal conductivity
- Low shrinkage
- Easy to set up (homogeneous structure)
- Very light, dust-free
- Effective in all atmospheres
- Excellent thermal shock resistance
- No carcinogenic classification
Available Formats
- Boards or semi-boards
- Customised cuts
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Product |
Type |
Standard Dimensions |
Max. Dimensions* |
|
1260-380 |
Board |
900x600x50 mm |
650x480x70 mm |
|
1750-700 |
600x400x25 mm |
- |
|
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Customized designs are available on request. *Min. order required |
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Implementation of Mullite Technic Composite
Insulation Panels
SIZAL® is a high-end insulation solution for the thermal management of your industrial installations or laboratories.
Customised Parts
Our machining centres are equipped with suction systems, specific cutting tools, and fastening systems for more fragile parts in order to guarantee the best possible quality.
SIZAL® products have good machinability thanks to their homogeneous structure. However, the minimum tolerance values are ±0.5 mm because of the porosities size.
Furnace Linings and Components
The quality of SIZAL® products is compatible with the construction and renovation of gas and electric furnaces. The use of this material permits greater compactness, with a resulting improvement in efficiency and energy saving.
Mechanical strength tests executed in electric furnaces of various designs, under both reducing and oxidizing atmospheres, have confirmed the exceptional resistance of SIZAL®CELL, particularly in response to high-amplitude hot and cold cycles, from 100 to 800 °C in less than an hour.
Repairs
In the event of problems, our team can propose appropriate solutions for the improvement of the service life of your existing components. If an element is beyond repair, tailor-made reproduction is possible, with rapid delivery.
Certain claddings, refractory cements and adhesive compounds can also improve the performance of components.
SIZAL®CELL permits the advantageous replacement of conventional refractory materials, refractory cement or fibrous insulation bricks, silica-alumina, etc.
Technical Data of Mullite Technic Composite
The technical data table for the available SIZAL®CELL Technic Composite can be downloaded in the data sheet.
Physical variables included in this documentation are provided by way of indication only and do not, under any circumstances, constitute a contractual undertaking. Please contact our technical service if you require any additional information.
FAQs that can help you in this category
Calcium silicate boards have a low density (200–1,000 kg/m³), low thermal conductivity (~ 0.05–0.35 W/m·K) and high temperature resistance of up to 1,000°C. They are used as structural insulators.
Mica boards (phlogopite or muscovite) have great dielectric strength (>20 kV/mm) and temperature resistance up to 500–1,000°C, depending on the type. It must be permanently compressed between 2 other boards to preserve its mechanical integrity (the silicon binder degrades at high temperature). Use of mica composite requires particular attention: please contact Final Advanced Materials for more information.
Yes, the inorganic composites produced by Final Advanced Materials can be CNC machined. Machining of calcium silicate-based (CaSiO₃) refractories or derived materials of the insulating boards type involves specific aspects relating to their low density, high porosity and low mechanical cohesion. Although these composites are not hard, they pose a high risk of scaling and crumbling: loads must therefore be minimised, and stripping of material must be avoided. The resulting powder is very abrasive and it is therefore essential that a dust extraction system is installed on your machinery. We can machine these materials in our production shop.
For continuous use at 1,000°C, Final Advanced Materials recommends composites made of ceramic fibres or calcium silicate. These materials have a low thermal conductivity (~0.08–0.35 W/m·K) and high dimensional stability. Nanoporous composites can go as low as 0.02–0.04 W/m·K but are more mechanically fragile. The choice depends on your requirements: thermal insulation or mechanical resistance. We require a complete description of the application and of the stresses before we can recommend the most suitable product.
Final Advanced Materials' high-temperature composite panels have resistances ranging from 1 to 40 MPa when compressed, depending on the density.
Light insulating materials (fibres and microporous materials) are limited (~1–5 MPa), while denser composites (reinforced silicate, zirconia) can resist up to 10–20 MPa and even as high as 40 MPa in the case of a calcium silicate with a density of 1,300 kg/m3.
Specifically: all inorganic composites which are capable of withstanding exposure to high temperatures (>300°C) have no elasticity and are therefore quite fragile.