Tuesday, February 24, 2009

Nanopowders and Technical ceramics

The array of nanopowders applications is very wide but one of the most popular applications that it offers is the one for technical ceramics. The materials used for this application are often zirconia and alumina. 

The contribution nanopowders bring to the products is mainly that it ensures more resistance to heat, a higher compacity. Moreover, it upgrades the mecahnical properties of the products in which it is incorporated. 

For the producer of ceramics, it allows a much less important consumption of energy, due to a lower sintering temperature. Of course, the lesser sintering temperature doesn't stop the product from being harder and more resistant to high temperatures than micropowders. 

Moreover the field of opportunities for this kind of product is quite wide. Thus, one can use it in steel, allegedly to produce hearths much more resistant than the traditional ones and having a higher lifespan. But it can also be used to make batteries (allegedly the superondensators) more efficient, which is an undoubtedly asset to enter the course for a gasfree car, which is the obsession of every carmaker on the planet nowadays. 

The land of plenty offered by these products is, as you can see, very wide, and a lot of young firms engulf themselves in the breach to take advantage of it. Among them, a young society called NanoE, based near Paris and working in partnership with the French center for scientific research and seems one of the most interesting products regarding this area. 

Friday, November 21, 2008

Wednesday, November 19, 2008

Nanopowder & Safety

There is a good article about nanopowder & safety at the industrialist NanoE website.
They explain some basic precautions that you may use when manipulating nanopowders.

Tuesday, October 14, 2008


this is nanopowder, from a french manufacturer : NanoE .


In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. It is further classified according to size: In terms of diameter, fine particles cover a range between 100 and 2500 nanometers, while ultrafine particles, on the other hand, are sized between 1 and 100 nanometers. Similarly to ultrafine particles, nanoparticles are sized between 1 and 100 nanometers, though the size limitation can be restricted to two dimensions. Nanoparticles may or may not exhibit size-related intensive properties that differ significantly from those observed in fine particles or bulk materials.

Nanoclusters have at least one dimension between 1 and 10 nanometers and a narrow size distribution. Nanopowders are agglomerates of ultrafine particles, nanoparticles, or nanoclusters. Nanometer sized single crystals, or single-domain ultrafine particles, are often referred to as nanocrystals. The term NanoCrystal® is a registered trademark of Elan Pharma International (EPIL) used in relation to EPIL’s proprietary milling process and nanoparticulate drug formulations.

Nanoparticle research is currently an area of intense scientific research, due to a wide variety of potential applications in biomedical, optical, and electronic fields. The National Nanotechnology Initiative has led to generous public funding for nanoparticle research in the United States.