Nanoporous Silica Nano-T Composite

Overview: Nanoporous Silica Nano-T Composite

Nanoporous ceramic are extremely light products for insulation purposes. Their high insulation capacity is a direct result of their nanoporous structure. There are only temporary contacts between particles and the surface ratio is the lowest possible. As a result, the thermal conduction between solid particles is reduced to a minimum. Nanopores also limit convective heat transfer.

All these characteristics make this type of material more efficient than conventional insulating materials such as mineral fibres, refractory bricks and other inorganic products.

This product consists of silica and opacifying agents to minimize infrared radiation.

This material can be protected by various types of packaging, in order to facilitate its use and conservation. For example, PE film or aluminium foils can be employed as a reinforcing material. This packaging also protects the product against mould. Nano T must also be protected against liquids, which may destroy its nanoporous structure. 

Applications of Nano-T

  • Tapping launders
  • Refractory coatings
  • Storage, heating systems
  • Melting furnaces
  • Industrial furnaces
  • Flame protection
  • Thermal insulation
  • Glass treatment

Main Characteristics of Nano-T

  • Resistance to high temperatures
  • Very low thermal conduction
  • Good machinability for shaping parts
  • Reinforcement by PE film, aluminium foil and more available
  • Class A1 flame protection
  • Thermal shock resistance
  • Excluded from all carcinogenic classifications
  • Stored as a non-hazardous and non-pollutant product
  • Protective packaging is required

Available Nano-T Products

Product

Type

Dimensions

 Thickness

115-1000

Board

1,000 x 650 mm
1,320 x 1,000 mm

10, 12,15, 17, 20, 25, 30, 35, 40, 45, 50 mm

Customed designs are available on request.

Storage 

This product can be stored indefinitely in a dry environment, and may be resistant to humidity, provided that condensation is prevented.

Technical Data of Nano-T

Property

Unit

Nano T Ultra

Item N°

115-1000

Chemical Composition, after firing

SiO2

%

75-85

SiC

12-20

Other

3-10

Ignition Loss

%

< 1.5

Density

kg/m3

230

Fire Classification

°C

950

Cold Compressive Strength

MPa

0.42

Shrinkage

Both side at 950 °C, 24 hrs

%

< 3

One side at 950 °C, 12 hrs

< 0.5

Thermal Conductivity

at 200 °C

W.m-1.K-1

0.02

at 400 °C

0.027

at 600 °C

0.034

at 800 °C

0.044

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.

Composite Nano T Ultra (146.61k)

Technical data sheet : Nano T Ultra Nanoporous Silica

Composite Materials (387.24k)

Composite Materials

FAQs that can help you in this category

What is the difference between a calcium silicate board and a mica board?

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.

Can rigid composites be machined with a CNC machine?

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.

What insulating technical composite should I choose for continuous thermal use of up to 1,000°C?

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.

What is the mechanical strength of compressed high-temperature composite panels?

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.