Matches in SemOpenAlex for { <https://semopenalex.org/work/W2201220821> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2201220821 endingPage "455" @default.
- W2201220821 startingPage "455" @default.
- W2201220821 abstract "The performance of ultra-high molecular weight polyethylene (UHMWPE) used in total joint replacement prosthesis depends on its wear resistance, oxidation resistance and mechanical properties. Several studies have now established that radiation crosslinking by applying a dose of 50–100 kGy gamma or electron beam radiation followed by remelting to quench free radicals fulfils the criterion of high wear resistance as well as oxidation resistance. However, post-irradiation remelting leads to a decrease in several mechanical properties of UHMWPE including fracture toughness and resistance to fatigue crack propagation, which are deemed important for components in joints where they are subjected to high stresses, such as in tibial components.In this study, we used uniaxial compression and high-pressure crystallization to disentangle UHMWPE, expecting that this would assist in increasing its crystallinity since disentangled polymer chains would be more readily incorporated into crystalline lamellae, thereby increasing overall crystallinity. This could then result in an increase in some mechanical properties of irradiated, remelted UHMWPE since high crystallinity is associated with high modulus and yield stress. Uniaxial compression of irradiated, remelted GUR 1050 UHMWPE at 130C to a compression ratio up to 2.5 followed by remelting to recover crystallographic orientation showed no statistically significant increase in crystallinity (p>0.05, ANOVA). High-pressure crystallization at 500 MPa and temperatures in a range of 130-220C also did not show statistically significant increase in crystallinity of irradiated, remelted UHMWPE. However high-pressure crystallization at 500MPa pressure and 240C, where crystallization occurs via the hexagonal phase, increased the crystallinity from 46.2% to 56.4% (p<0.05, ANOVA).We conclude that high-pressure crystallization via the hexagonal phase is more effective than uniaxial compression followed by strain recovery or high-pressure crystallization via the orthorhombic phase in increasing the crystallinity of irradiated, remelted UHMWPE, with potential to recover some mechanical properties." @default.
- W2201220821 created "2016-06-24" @default.
- W2201220821 creator A5030246141 @default.
- W2201220821 creator A5057095184 @default.
- W2201220821 creator A5057299422 @default.
- W2201220821 creator A5066989608 @default.
- W2201220821 creator A5075887355 @default.
- W2201220821 creator A5088712918 @default.
- W2201220821 date "2009-09-01" @default.
- W2201220821 modified "2023-09-23" @default.
- W2201220821 title "INCREASING THE CRYSTALLINITY OF CROSSLINKED UHMWPE AFTER POST-IRRADIATION REMELTING" @default.
- W2201220821 hasPublicationYear "2009" @default.
- W2201220821 type Work @default.
- W2201220821 sameAs 2201220821 @default.
- W2201220821 citedByCount "0" @default.
- W2201220821 crossrefType "journal-article" @default.
- W2201220821 hasAuthorship W2201220821A5030246141 @default.
- W2201220821 hasAuthorship W2201220821A5057095184 @default.
- W2201220821 hasAuthorship W2201220821A5057299422 @default.
- W2201220821 hasAuthorship W2201220821A5066989608 @default.
- W2201220821 hasAuthorship W2201220821A5075887355 @default.
- W2201220821 hasAuthorship W2201220821A5088712918 @default.
- W2201220821 hasConcept C111337013 @default.
- W2201220821 hasConcept C121332964 @default.
- W2201220821 hasConcept C159985019 @default.
- W2201220821 hasConcept C178790620 @default.
- W2201220821 hasConcept C185544564 @default.
- W2201220821 hasConcept C185592680 @default.
- W2201220821 hasConcept C192562407 @default.
- W2201220821 hasConcept C203036418 @default.
- W2201220821 hasConcept C2779751980 @default.
- W2201220821 hasConcept C2781263970 @default.
- W2201220821 hasConcept C46275449 @default.
- W2201220821 hasConcept C99595764 @default.
- W2201220821 hasConceptScore W2201220821C111337013 @default.
- W2201220821 hasConceptScore W2201220821C121332964 @default.
- W2201220821 hasConceptScore W2201220821C159985019 @default.
- W2201220821 hasConceptScore W2201220821C178790620 @default.
- W2201220821 hasConceptScore W2201220821C185544564 @default.
- W2201220821 hasConceptScore W2201220821C185592680 @default.
- W2201220821 hasConceptScore W2201220821C192562407 @default.
- W2201220821 hasConceptScore W2201220821C203036418 @default.
- W2201220821 hasConceptScore W2201220821C2779751980 @default.
- W2201220821 hasConceptScore W2201220821C2781263970 @default.
- W2201220821 hasConceptScore W2201220821C46275449 @default.
- W2201220821 hasConceptScore W2201220821C99595764 @default.
- W2201220821 hasLocation W22012208211 @default.
- W2201220821 hasOpenAccess W2201220821 @default.
- W2201220821 hasPrimaryLocation W22012208211 @default.
- W2201220821 hasRelatedWork W1981634200 @default.
- W2201220821 hasRelatedWork W2010332219 @default.
- W2201220821 hasRelatedWork W2024491974 @default.
- W2201220821 hasRelatedWork W2030487991 @default.
- W2201220821 hasRelatedWork W2036481074 @default.
- W2201220821 hasRelatedWork W2047306086 @default.
- W2201220821 hasRelatedWork W2062523179 @default.
- W2201220821 hasRelatedWork W2063003932 @default.
- W2201220821 hasRelatedWork W2091249928 @default.
- W2201220821 hasRelatedWork W2117309583 @default.
- W2201220821 hasRelatedWork W2125174766 @default.
- W2201220821 hasRelatedWork W2161775166 @default.
- W2201220821 hasRelatedWork W2187167833 @default.
- W2201220821 hasRelatedWork W2380661413 @default.
- W2201220821 hasRelatedWork W2394284918 @default.
- W2201220821 hasRelatedWork W2525999723 @default.
- W2201220821 hasRelatedWork W2623915292 @default.
- W2201220821 hasRelatedWork W1020366250 @default.
- W2201220821 hasRelatedWork W2820723849 @default.
- W2201220821 hasRelatedWork W3142894282 @default.
- W2201220821 isParatext "false" @default.
- W2201220821 isRetracted "false" @default.
- W2201220821 magId "2201220821" @default.
- W2201220821 workType "article" @default.