title: Microhardness anisotropy of lamellar bone.
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.
authors.affiliation: Department of Aerospace Engineering, University of Bristol, U.K.
authors.forename: P E
authors.initials: PE
authors.lastname: Riches
authors.forename: N M
authors.initials: NM
authors.lastname: Everitt
authors.forename: A R
authors.initials: AR
authors.lastname: Heggie
authors.forename: D S
authors.initials: DS
authors.lastname: McNally
mesh_terms: D000818:Animals; D016880:Anisotropy; D006244:Hardness; D008297:Male; D008954:Models, Biological; D051381:Rats; D017208:Rats, Wistar; D013977:Tibia / Q000502:physiology*