Particulate strengthened cobalt-partially stabilized zirconia composites were produced by conventional electro-codeposition method. Tribological properties of the deposits were evaluated against a hardened steel disc under dry sliding conditions on a thrust bearing type disc on disc machine. Dispersion of the particles improved the hardness and tribological properties of cobalt. Load and sliding velocity variations at the interface significantly influence the tribological properties of the deposits. Partially stabilized zirconia showed phase transformations during wear. © 1995.

Amita Iyer

Suresh Krishnamoorthy Seshadri

Coatings

Cobalt

Composite materials

Electrochemistry

Electrodeposition

Hardness

Interfaces (materials)

Phase Transitions

tribology

Wear of materials

CONVENTIONAL ELECTRO-CODEPOSITION

DRY SLIDING

HARDENED STEEL DISC

PARTIALLY STABILIZED ZIRCONIA

PARTICULATE STRENGTHENED

SLIDING VELOCITY VARIATIONS

TRIBOLOGICAL PROPERTIES

Zirconia

Composites

Sliding

Wear

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Tribological properties of cobalt-partially stabilized zirconia (PSZ) composites in dry sliding conditions

The frictional and wear behaviour and hardness of cobalt and cobalt-titania (anatase) particulate composites, developed by sediment electro-codeposition method, were studied. Frictional and wear studies, performed on a disc-on-disc type machine, show that the microhardness of the composite increases as the titania content in the composite increases. A decrease in both the coefficient of friction and specific wear rate was observed for the composites with increasing titania content in the cobalt matrix. The effect of sliding velocity and load on the coefficient of friction and specific wear rate of cobalt and cobalt titania composites was also investigated. The optical microphotographs and X-ray diffractogram reveals that the tribo-deformation is oxidation dominated for cobalt. A probable mechanism is discussed. © 1991 Chapman & Hall.

Journal of Materials Science

A study of the tribological properties of cobalt-titania composite

Oxford Dictionary of National Biography

Jones, Rhys (1713–1801)

ICTACT Journal on Soft Computing

FEATURE EXTRACTION FOR EMG BASED PROSTHESES CONTROL

Surface and Coatings Technology

Composite materials deposited from the vapour phase under vacuum

Acta Metallurgica

Cavity nucleation at high temperatures involving pile-ups of grain boundary dislocations

Journal	Wear
ISSN	00431648
Open Access	No