Results 161 to 170 of about 3,071 (184)

CRYSTALLISATION STUDIES ON NEAT PEKK AND CARBON FIBRE/PEKK COMPOSITES

2023
Study of the crystallisation behaviour, morphology, kinetics and modelling of unreinforced PEKK and carbon fibre-PEKK composite.
Helena Pérez-Martín, Dipa Ray, Conchúr Ó Brádaigh, Paul Mackenzie, Alex Baidak   +4 more
openaire   +1 more source

Accuracy of patient-specific temporal implants using PEKK

Journal of Cranio-Maxillofacial Surgery, 2021
The main aim of this study was to evaluate the accuracy of immediate CAD/CAM reconstruction of the temporal hollowing following temporalis muscle surgery, using a patient-specific implant (PSI) PEKK model. This case series included ten patients who underwent maxillofacial reconstruction using temporalis muscle flap (TMF).
Mohammed M, Khashaba, Hamed A, Shaheen, Waleed H, Ibrahim, Duaa Gawad, AlDainy   +3 more
openaire   +2 more sources

Microstructure and Phase Separation of Pekk, Pekk and their Blends

MRS Proceedings, 1996
ABSTRACTMicrostructures of PEEK|PEKK blends at both structural and lamellar levels were studied using simultaneously time-resolved small-angle and wide-angle x-ray scattering (SAXS and WAXS) with synchrotron radiations. Lamellar dimensions and unit cell parameters were determined, and phase separation within the blends were observed.
Wu. Wang, Jerold M. Schultz, Benjamin S. Hsiao   +2 more
openaire   +1 more source

Thermomechanical investigations of PEKK-HAp-CS composites

Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2019
In this experimental study, a composite of poly-ether-ketone-ketone by reinforcement of hydroxyapatite and chitosan has been prepared for possible applications as orthopaedic scaffolds. Initially, different weight percentages of hydroxyapatite and chitosan were reinforced in the poly-ether-ketone-ketone matrix and tested for melt flow index in order ...
Rupinder Singh, Gurchetan Singh, Jaskaran Singh, Ranvijay Kumar, Md Mustafizur Rahman, Seeram Ramakrishna   +5 more
openaire   +2 more sources

Coupling between thermal ageing/degradation and creep behavior of PEKK and C/PEKK composites above the glass transition temperature

Composites Part A: Applied Science and Manufacturing, 2022
Abstract The present work aims at investigating the coupling between thermal ageing/degradation and creep behavior of PEKK and C/PEKK composites at 200 °C, above the glass transition temperature (which is close to 160 °C). Ageing tests were carried out at 200 °C, under 5 bar of oxygen conditioned atmosphere. DSC scans and DMA tests were carried out.
Giuseppe Pedoto, Jean-Claude Grandidier, Marco Gigliotti, Alain Vinet   +3 more
openaire   +1 more source

Processing and Properties of Bioactive Surface-Porous PEKK

ACS Biomaterials Science & Engineering, 2016
Bioactive surface-porous polyetherketoneketone materials (PEKK-BSP) were prepared by first leaching hydroxyapatite (HA) microsphere templates from compression molded PEKK/HA composites (i.e., PEKK-P) followed by sulfonation with 80% sulfuric acid for 3 h (i.e., PEKK-SP) and then soaking in a simulated body fluid (SBF) for 5 days.
Bo, Yuan, Yangmei, Chen, Hai, Lin, Yueming, Song, Xi, Yang, Hai, Tang, En, Xie, Tim, Hsu, Xiao, Yang, Xiangdong, Zhu, Kai, Zhang, Xingdong, Zhang   +11 more
openaire   +2 more sources

PEEK-PEKK en de PEAK-familie

Tandartspraktijk, 2016
Sinds 1980 wordt PEEK in de orthopedie en de traumatologie gebruikt voor onder andere kunstheupen en als transplantaat bij botdefecten. Sinds de opmars van cad/cam-toepassingen in de tandheelkunde is dit lichte maar sterke materiaal ook toepasbaar in de tandheelkunde. Op de IDS-beurs van 2014 in Keulen liet een fabrikant als Cendres+Metaux toepassingen
Frederique van der Werff, Hilko de Wolf
openaire   +1 more source

Nanotribological Properties of Poly(ether ketone ketone) (PEKK) and Sulfonated Poly(ether ketone ketone) (S-PEKK) Thin Films

High Performance Polymers, 2002
An atomic force microscope (AFM) was used to determine the nanotribological properties of poly(ether ketone ketone) (PEKK) and sulfonated poly(ether ketone ketone) (S-PEKK) thin films, by sliding the AFM tip on the polymer surfaces and stepwise increasing the loading forces on the cantilever.
Caisheng Song, Yiwang Chen, Daoji Gan, Zhijian Wang   +3 more
openaire   +1 more source

Fiber/Matrix Adhesion in Graphite/PEKK Composites

Journal of Thermoplastic Composite Materials, 1992
Experiments with poly ether ketone ketone (PEKK) resin and AS-4, IM-7, and G30-500 fibers showed excellent correlation between resin/fiber contact angle and composite transverse flexural strength as measures of resin/fiber interfacial strength. Both tests indicate the strongest interface for G30-500/PEKK followed by IM-7/PEKK and AS-4/PEKK.
R.A. Bucher, J.A. Hinkley
openaire   +1 more source

Depositing Aluminum onto PEKK Composites by Cold Spray

Journal of Thermal Spray Technology, 2020
High-pressure cold spray (HP-CS) was used to deposit aluminum onto polyetherketoneketone (PEKK) composite substrates. Aluminum powders were sprayed using N2 and He carrier gas and a bond layer (BL) of commercial-purity Al (CP Al). Dense 7075 and CP Al deposits were achieved via combinations of BL-N2, 7075/BL-N2, and 7075/BL-He. Cold spray using 7075 Al
P. Feng, M. R. Rokni, S. R. Nutt
openaire   +1 more source