Sustainable & digital engineering Advanced materials

SINTERED: red ceramic material

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Ceramic parts are currently used in a wide range of industrial sectors. These materials need to have high mechanical strength, low density, high hardness, high rigidity and high resistance to wear, cracking and heat. They are generally black, white, blue, or brown in colour. 
The technology presented here makes it possible to obtain red ceramics produced by spark plasma sintering (SPS), with all the physical advantages of conventional ceramic.

COMPETITIVE ADVANTAGES

  • Red ceramic
  • High mechanical strength
  • Low density (light)
  • High hardness
  • High rigidity
  • High resistance to wear, cracking and heat

APPLICATIONS

  • Mechanical industries
  • Instrumentation in all types of fields

INTELLECTUAL PROPERTY

  • Patent

DEVELOPMENT STAGE

Laboratory validation of the technology

LABORATORY

pictrogramme d'illustration
  • CIRIMAT

Description

The Spark Plasma Sintering (SPS) process enables the mixture of nanostructured and nanocomposite powders to be densified very quickly, in just a matter of tens of minutes
A ceramic material with a homogeneous red colour is produced from a mixture of zirconia, alumina or zirconia/alumina ceramic powders, including a proportion of pigment.

Photo de la céramique

Technical specifications

  • Hardness (Vickers): Between 1220 and 1490 Hv
  • Toughness (Vickers micro-indentation): Between 4.5 MPa.m 1/2 and 6.8 MPa.m 1/2
  • Density: Around 99%
  • Colorimetry (L*/a*/b*): L* (between 30 and 60)/a* (between 10 and 40)/b* (between 0 and 20) depending on pigment dose