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Anderman Ceramics is a leading developer and supplier of zirconia technology and has a wide range of existing materials

Anderman Ceramics throughout its almost 70 years of operation and experience in technical ceramics has developed a lot of products based in high quality materials.
Zirconia is one of the extensive range of materials Anderman Ceramics has to offer.

The last 40 years has seen the evolution of zirconia as a leading ceramic alloy in a multitude of applications. The first scientific paper (1975) highlighted the many possibilities offered by a transformation toughening mechanism occurring in certain types of zirconia materials. Since 1975 this concept has developed to produce the material we know today.

There are a number of different zirconia types commercially available. These have all evolved as applications and have driven the opportunities to exploit the different properties of zirconia due to its different phases. This enables the material properties to be tailored to achieve traditional ceramic benefits of hardness, wear resistance, corrosion resistance and high temperature capability without the drawback of the traditional ceramic property of brittleness. One might say “an engineering dream”. Typical properties of the different forms of zirconia that are often of interest to design engineers are:

• Thermal expansion and elasticity similar to steel i.e. compatible at most temperatures
• Very hard
• High strength and fracture toughness
• Non magnetic
• Low thermal conductivity (like most ceramics)
• Good wear and corrosion resistance

These various forms of zirconia, often referred to as zirconia alloys, can be categorised as follows:

• MZ – monoclinic zirconia.
• PSZ – partially stabilised zirconia
• FSZ – fully stabilised zirconia
• TZP – tetragonal zirconia polycrystals
• TTZ – transformation toughened zirconia
• ZTA – zirconia toughened alumina
• TTC – transformation toughened ceramics

The most common of these materials are PSZ, FSZ, TZP where the zirconia is combined with a stabilising oxide to produce the desired properties. Typically the abbreviation of the stabilising oxide is placed ahead of the zirconia description and this will be found on most manufacturers’ literature.
Common stabilising oxides used with zirconia are magnesium oxide (MgO), calcium oxide (CaO), yttrium oxide (Y2O3) and cerium oxide (CeO). Usually the name of the oxide is placed ahead of the zirconia type – for example yttria fully stabilised zirconia would have name 12YFSZ where 12% yttria has been used to stabilise the zirconia alloy. The addition of these oxides, by researchers worldwide, has allowed the development of novel and innovative ceramic materials that have found applications in a widening area of business activities.
Ongoing research into stabilising agents is creating a widening range zirconia based alloys that are finding applications in the world’s chemical, automotive, power, medial and electronic industries. All of these utilising the exceptional high temperature, thermal expansion and wear properties that the material exhibits.
Anderman Ceramics is a leading developer and supplier of zirconia technology and has a wide range of existing materials and a number of newer development materials.

Meanwhile, if you need more information about Anderman Ceramics Zirconia products or any other product, please contact:

Anabela Lelis
Marketing Executive
Anderman Ceramics Ltd
Unit 117 Oak Drive
Hartlebury Trading Centre,
Kidderminster
Worcestershire
DY10 4JB
Tel +(44) 1299 252483
e-mail: anabelad@andermanceramics.com
www.earthwaterfire.com

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