Abstract
A model for hardness in multiphase materials is derived that assumes crack propagation is impeded by phase boundaries. The phase boundary surface area density is determined statistically and the crack impedance scales linearly with this quantity. For the (1−x)AlMgB14−xTiB2 material system experimentally determined hardness values and micrographs at x=0.6 are used to accurately calculate the hardness of the microstructure for (0<x<1). The model predicts that refining the microstructure of this system such that the particle size is less than 0.25μm will increase the hardness, making it superhard.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
