Third Body Wear of UHMWPE-on-PEEK-OPTIMA™ [PDF]
Materials, 2020 PEEK-OPTIMA™ is being considered as an alternative to cobalt chrome (CoCr) in the femoral component of total knee replacements. To date, investigations of ultra-high molecular weight polyethylene (UHMWPE)-on-PEEK have shown an equivalent wear rate to conventional implant materials under standard conditions.
Cowie, RM +3 more
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Third body damage and wear in arthroplasty bearing materials: A review of laboratory methods [PDF]
Biomaterials and Biosystems, 2021 Third body wear of arthroplasty bearing materials can occur when hard particles such as bone, bone cement or metal particles become trapped between the articulating surfaces. This can accelerate overall implant wear, potentially leading to early failure.
Raelene M Cowie, Louise M Jennings
doaj +2 more sources
Roughness Evolution Induced by Third-Body Wear [PDF]
Tribology LettersAbstractSurface roughness is a key factor when it comes to friction and wear, as well as to other physical properties. These phenomena are controlled by mechanisms acting at small scales, in which the topography of apparently flat surfaces is revealed.
Garcia-Suarez, Joaquin +2 more
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Ultrasound gel minimizes third body debris with partial hardware removal in joint arthroplasty [PDF]
Arthroplasty Today, 2017 Hundreds of thousands of revision surgeries for hip, knee, and shoulder joint arthroplasties are now performed worldwide annually. Partial removal of hardware during some types of revision surgeries may create significant amounts of third body metal ...
Aidan C. McGrory +2 more
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A Comparison of Averaged and Full Models to Study the Third-Body Perturbation [PDF]
The Scientific World Journal, 2013 The effects of a third-body travelling in a circular orbit around a main body on a massless satellite that is orbiting the same main body are studied under two averaged models, single and double, where expansions of the disturbing function are made, and ...
Carlos Renato Huaura Solórzano +1 more
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Third Body Wear of an All-Polymer, PEEK-OPTIMA™ on Ultra-High-Molecular-Weight Polyethylene Total Knee Replacement [PDF]
BioengineeringExperimental wear simulation of a PEEK-OPTIMA™ polymer-on-UHMWPE total knee replacement has shown equivalent UHMWPE wear to conventional knee replacement materials (cobalt chrome-on-UHMWPE) when tested in a clean environment. The aim of this study was to
Raelene M. Cowie +4 more
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Aluminum and alumina/MoS2/cellulose derivative composite: design and performance
Materials Research Express, 2022 Nanoparticles were added to improve the tribological performance of the biopolymer-based composite films. Aluminum and alumina were used as additives. The matrix of the composite was MoS _2 /hydroxypropyl methylcellulose (HPMC).
Shih-Chen Shi +2 more
doaj +1 more source
Four-Body Bound State Formulation in Three-Dimensional Approach (Without Angular Momentum Decomposition) [PDF]
, 2006 The four-body bound state with two-body forces is formulated by the Three-Dimensional approach, which greatly simplifies the numerical calculations of few-body systems without performing the Partial Wave components.
Bayegan, S., Hadizadeh, M. R.
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Thermodynamical Description of Running Discontinuities: Application to Friction and Wear
Entropy, 2010 The friction and wear phenomena appear due to contact and relative motion between two solids. The evolution of contact conditions depends on loading conditions and mechanical behaviours.
Claude Stolz
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HAT-P-7: A Retrograde or Polar Orbit, and a Third Body [PDF]
, 2009 We show that the exoplanet HAT-P-7b has an extremely tilted orbit, with a true angle of at least 86 degrees with respect to its parent star's equatorial plane, and a strong possibility of retrograde motion.
Albrecht, Simon +6 more
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