It has been documented (Grigoriev et al. 2010) that bending strength of ZrB2–SiC ceramics increases with increase in volume fraction (0-30%) of Sic particulates. Although both matrix and filler behave as brittle. Considering brittle behaviour, the composite strength should not exceed the matrix strength as matrix will fail first even if strength of particulates are more than matrix specially in tensile loading. Please correct me and comment
Thanks in advance
Regards,
Manik
http://linkinghub.elsevier.com/retrieve/pii/S0955221910001512
the mechanical properties of Sic is greater than ZrB2, therefore, the composite materials properties is increasing respect to increasing of volume fraction
the mechanical properties of Sic is greater than ZrB2, therefore, the composite materials properties is increasing respect to increasing of volume fraction
is there any additional lowering of surface energy between the matrix and dispersed phase due to the chemical interaction between the two? If there is,this can be the cause of increase structure stabilty
Dear manik Improving the mechanical properties of materials with adding a second nano phase into base material is commonly used but it can not be said that with increasing the volume fraction of nano phase mechanical characteristic will be enhanced. in some cases they increase the properties of materials but it depends on a lot of thing. generally, adding them causes the material to be more brittle followed by an enhancement in hardness of the material. also the material strength can be improved but we can not certainly say that increasing the amount of nano particles leads to an improvement in tensile strength of the material. it needs some experiments
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