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M Ramrakhiani

Publications and source records attributed to M Ramrakhiani.

3 recordsLinked to original sources
PubMed1980

Effect of heating on the hardness of human bone.

Specimens of dry human bone wee subjected to gradual or sudden heating up to different temperatures. After heating they were cooled suddenly or gradually to room temperature. Their hardness was studied by the Vickers and ball indentation tests. The deformation produced was studied by interferometric and phase-contrast techniques. Heating caused the bone to become brittle without any considerable changes in the surface features. Gradual cooling induced surface hardening. Heating was not found to affect indentation-induced surface distortion.

Bone and Bones↗
PubMed1979

Micro-indentation hardness studies on human bones.

Bones from different portions of human skeleton are polished and cut to suitable sizes and then subjected to micro-indentation at various loads using Vicker's diamond pyramidal indenter. The Vicker's hardness number is found to differ slightly from portion to portion of the skeleton. Interferometric studies of the indentation reveal that the applied stress of indentation causes a 'pile-up' of material near the corners of the pyramidal indents.

Bone and Bones↗