Static Indentation Hardness Testing for Coals

Static indentation test for neocartilage surface hardness in repair of periosteal articular cartilage defects.

The objective of this study was to determine whether hardness of the superficial layer is a useful parameter to characterise cartilage produced by periosteal neochondrogenesis, using rabbit knee lesions as a model. A cartilage defect was created in the right hind knee of anesthetised young adult rabbits, and the defect was then covered with an autologous periosteal graft. At one and eight month...

Spherical Indentation Hardness of Shape Memory Alloys

Instrumented Indentation Testing

INSTRUMENTED INDENTATION TESTING (IIT), also known as depth-sensing indentation, continuous-recording indentation, ultra-low-load indentation, and nanoindentation, is a relatively new form of mechanical testing that significantly expands on the capabilities of traditional hardness testing. Developed largely over the past two decades, IIT employs high-resolution instrumentation to continuously c...

Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests

We evaluate Vickers hardness and true instrumented indentation test (IIT) hardness of 24 metals over a wide range of mechanical properties using just IIT parameters by taking into account the real contact morphology beneath the Vickers indenter. Correlating the conventional Vickers hardness, indentation contact morphology, and IIT parameters for the 24 metals reveals relationships between conta...

Indentation Hardness of the Bill Keratin of the European Starling’

DUFFY, D. C. 1989. Seabird foraging aggregations: a WANLESS, S., A. E. BURGER, AND M. P. HARRIS. 1991. comparison of two southern upwellings. Colon. Diving depths of shags Phalacrocorax aristoletis Waterbirds 12: 164-l 75. breeding on the Isle of May. Ibis 133:37-42. PIATT, J. F., AND D. N. NETTLESHIP. 1985. Diving WILSON, R. P. 1985. The Jackass Penguin (Sphendepths of four alcids. Auk 102:293...