Microhardness anisotropy of lamellar bone

Riches, Philip and Everitt, Nicola and Heggie, Alistair and McNally, Donal (1997) Microhardness anisotropy of lamellar bone. Journal of Biomechanics, 30 (10). pp. 1059-1061. ISSN 0021-9290

Abstract

The Knoop microhardness test has been utilised to observe in-plane microhardness anisotropy of rat tibiae. The elongated rhombohedral geometry of the Knoop indenter enables the Knoop microhardness (HK) to be calculated for a given indenter orientation. Two indenter orientations were used the major axis of the indenter was aligned along the length of, and across the mid-sagittal section. The statistical analysis demonstrated that the variation in HK was primarily due to the orientation of the Knoop indenter (p < 0.001). HK was consistently greater when the indenter was aligned with the major diagonal radial on the mid-sagittal section.

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