A new stratified approach to pre-clinical tribological simulation of joint replacements is presented, which extends beyond present standard conditions used. It includes variations in surgical delivery, variations in kinematics, variations in the patient population and degradation of the biomaterials technology. Examples of the new methods are presented, which have been validated against clinica...

M. Madej, D. Ozimina, Kielce University of Technology, Poland R.Gałuszka, The Jan Kochanowski University in Kielce, Poland G. Gałuszka School of Economics, Law and Medical Sciences in Kielce, Poland The a C:H:W, TiN/a C:H:W and the CrN/a C:H:W coatings were deposited on steel surface by physical vapour deposition methods and studied for corrosion and tribological properties, after elemental and...

Intermetallic compounds are increasingly being expected to be utilized in tribological environments, but to date their implementation is hindered by insufficient ductility at low and medium temperatures. This paper presents a novel multiphase intermetallic alloy with the chemical composition of Mo-40Ni-13Si (at %). Microstructure characterization reveals that a certain amount of ductile Mo phas...

A numerical, tribological data collection system with 15,000 data records was developed to find materials for tribological operations. The database enables the user to search, retrieve and display information and data about the appropriate material couples in a fast and convenient way. The database is intended to be used by researchers, engineers, consultants and developers. All tribological ch...

Recently, some novel surface engineering techniques have been developed, which may be used for extending lifetime of artificial joints; however, the full potential will not be realised until the tribological behaviour of surface engineered bio-medical materials has been fully characterised. In the present investigation, a pin-on-disc tribometer has been used to evaluate the tribological respons...

A novel flexure-based biaxial compression/shear apparatus has been designed, built, and utilized to conduct tribological studies of interfaces relevant to MEMS. Aspects of our new apparatus are detailed and its capabilities are demonstrated by an investigation of two interfaces for MEMS applications. Tribological tests may be performed with normal and tangential forces in the μN to N range and ...

Carbon-based systems comprise an impressively broad and continually expanding range of materials, from the building blocks of biology to carbon allotropes with extreme and exotic properties such as nanotubes, buckyballs, graphene1, and diamondoids2. The myriad of stable forms that carbon can adopt is largely because of its ability to hybridize in multiple stable bonding states, and to bond stro...

Ti-Si-C thin films were deposited onto silicon, stainless steel and high-speed steel substrates by magnetron sputtering, using different chamber configurations. The composition of the produced films was obtained by Electron Probe Micro-Analysis (EPMA) and the structure by X-ray diffraction (XRD). The hardness and residual stresses were obtained by depth-sensing indentation and substrate deflect...