Tribological behaviour of colloidally processed sialon ceramics sliding against steel under dry conditions

authors	Reis, P; Davim, J; Xu, X; Ferreira, J
nationality	International
journal	TRIBOLOGY LETTERS
author keywords	wear; friction; advanced structural ceramics; sialon; crystalline phases
keywords	CUTTING-TOOL MATERIAL; MECHANICAL-PROPERTIES; WEAR BEHAVIOR; MICROSTRUCTURE; FRICTION; COMPOSITES; ADDITIVES; POLYOLS; (CA
abstract	Advanced structural ceramics are presently used in several tribological applications such as precision instrument bearings, water pumps, automotive engine parts and cutting tools inserts. In the present work, the tribological behaviours of colloidally processed and pressureless sintered sialon ceramics with different phases (alpha and beta) have been studied, aiming at increasing the industrial applications of sialon ceramics. The friction and wear behaviour of sialon ceramics against steel DIN-Ck45K were investigated using a pin-on-disk tribometer under dry conditions. Scanning electron microscopy (SEM), and energy dispersion spectroscopy (EDS) were used to analyse the worn surfaces of the sialon ceramics. Under the conditions used, sialon ceramics exhibited a typical mild wear (10(-6) mm(3) N-1 m(-1)) and the dominant wear mechanisms present were adhesive and abrasion. The results confirmed that colloidal processing and pressureless sintering are effective methods to prepare wear resistant sialon ceramic components.
publisher	SPRINGER/PLENUM PUBLISHERS
issn	1023-8883
year published	2005
volume	18
issue	3
beginning page	295
ending page	301
digital object identifier (doi)	10.1007/s11249-004-2756-5
web of science category	Engineering, Chemical; Engineering, Mechanical
subject category	Engineering
unique article identifier	WOS:000227937900004