Porous Silicon Nitride Through Sinter-Forging

Porous Silicon Nitride Through Sinter-Forging 

The elastic modulus, measured using the pulse echo method, was about 180 GPa, and the fracture strength determined by the three-point flexure test was about 800 MPa in the grain-alignment direction. This strength, which is relatively high for the large porosity of 25%, is almost equivalent to that of commercially available 

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Porous Silicon Nitride Through Sinter-Forging... 

Figure 8.26 Fracture surfaces of porous silicon nitride with fine fibrous grain alignment fabricated through a sinter-forging technique. The porosity is 24%. Illustration courtesy of Naoki Kondo et al.

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