Biomedical Engineering Reference
In-Depth Information
4.8
( a) Macropore in MoSi
2
. SiO
2
glassy phase in the form of globular
particles is also visible. (b) Impurity as a microstructural defect in
tungsten carbide-cobalt system. (c) Porosity as a consequence of large
grain clustering in bimodal microstructure of Si
3
N
4
. (d) Macropore as a
fracture origin in Si
3
N
4
ceramics.
4.9
Micropores at the grain boundaries in alumina prepared by spark
plasma sintering (Puch ´
et al
., 2011).
