FIB-SEM tomography of SiAlON-graphene composite using the TESCAN S9000X

Aug/06/2018
SiAlON ceramics are known for their superior mechanical properties, thermal stability, creep resistance and corrosion resistance. Such properties make these ceramics suitable for a variety of applications. Thermal conductivity of SiAlON ceramics could be further improved by using graphene additive. It is then important to properly characterise these compounds (SiAlON-graphene) in order to control and obtain the desired properties. FIB-SEM tomography is a suitable analytical technique that provides unique 3D structur­al information at microscale with nanoscale resolution. The new TESCAN S9000X is a FIB-SEM analytical platform that combines the next generation Triglav™ UHR SEM column with the new iFIB+™ Xe plasma FIB column. The S9000X has it all what it takes to be ideal for ultra-fast large-scale FIB-SEM to­mography with high-spatial resolution and excellent contrast.
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Application Example

FIB-SEM tomography of SiAlON graphene composite using the TESCAN S9000X
SiAlON ceramics are known for their superior mechanical properties, thermal stability, creep resistance and corrosion resistance. Such properties make these ceramics suitable for a variety of applications; for instance, in production of cutting tools or ball bearings where outstanding thermal stability and conductivity are essential wanted features. However, thermal conductivity of SiAlON ceramics could be further improved. On way of enhancing thermal conductivity in SiAlON ceramics is using graphene. The thermal conductivity of the SiAlON-Graphene composite is beneficial especially in the work zone of the material. Beside of thermal properties, graphene additive could also improve electrical conductivity of normally non-conductive SiAlON ceramics. It is then important to properly characterise these compounds in order to control and obtain the desired properties.
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