Results 21 to 30 of about 1,407 (188)

DFT-based investigation of polyetherketoneketone materials for surface modification for dental implants [PDF]

European Journal of Medical Research
Background Polyetherketoneketone (PEKK) is a high-performance thermoplastic polymer with unique structural and mechanical properties that make it a promising candidate for surface modification of dental implants.
Ravinder S. Saini, Rayan Ibrahim H. Binduhayyim, Mohamed Saheer Kuruniyan, Artak Heboyan   +3 more
doaj   +2 more sources

Flexural performance of shape memory alloy/CF-PEKK fiber metal laminates for aircraft morphing under varied temperature conditions [PDF]

Scientific Reports
In this study, novel Fiber Metal Laminates (FMLs) were manufactured using Nickel Titanium (NiTi) sheets together with Carbon Fiber-Polyetherketoneketone (CF-PEKK) prepregs for different aerospace applications.
Muzafar Hussain, Wael Zaki, Rehan Umer
doaj   +2 more sources

Interaction of PEKK and CF/PEKK composites with water and Skydrol [PDF]

, 2023
Alléger les avions reste une problématique majeure pour l’industrie aéronautique. Le développement de composites à matrices thermoplastiques, en remplacement des thermodurcissables, permet d’obtenir des matériaux soudables et recyclables, avec une température de service supérieure.
Lesimple, Gwladys
openaire   +2 more sources

Shrinkage behaviour of semi-crystalline polymers in laser sintering: PEKK and PA12

Materials and Design, 2019
Shrinkage is extensively mentioned in the literature as one of the main causes for dimensional instability or poor performance in Laser Sintering (LS).
L Benedetti, K E Evans, O Ghita
exaly   +3 more sources

Multiscale Mechanical Characterization of Polyether-2-ketone (PEKK) for Biomedical Application [PDF]

Bioengineering
Polyether-ether-2-ketone (PEKK) is a high-performance thermoplastic polymer used in various fields, from aerospace to medical applications, due to its exceptional mechanical and thermal properties.
Gianpaolo Serino, Fabio Distefano, Elisabetta M. Zanetti, Giulia Pascoletti, Gabriella Epasto   +4 more
doaj   +4 more sources

Biomechanical effects of digitally constructed titanium, modified polyetheretherketone, and polyetherketoneketone subperiosteal implants on atrophied maxilla: a finite element analysis [PDF]

BMC Oral Health
Aim This study aimed to evaluate how different combinations of subperiosteal and superstructure framework materials—titanium, modified PEEK, and PEKK—affect stress distribution on bone in atrophic maxillae, using finite element analysis (FEA).
Mohammed A. El-Sawy, Basin El-Khatib, Hesham S. Borg, Mohamed T. Khater   +3 more
doaj   +2 more sources

Evolution of PEKK crystallization measured in laser sintering [PDF]

Frontiers in Manufacturing Technology, 2022
The rising popularity of laser sintering (LS) technology has increased by the broadening of available materials for this process. Kepstan 6002 poly (ether ketone ketone) (PEKK) was recently launched as a high-performance polymer grade with a lower processing temperature and unique crystallization kinetics.
Benedetti, L, Brulé, B, Decraemer, N, Evans, KE, Ghita, O   +4 more
openaire   +3 more sources

Influence of different polymeric materials of implant and attachment on stress distribution in implant-supported overdentures: a three-dimensional finite element study [PDF]

BMC Oral Health
Purpose Investigating high performance thermoplastic polymers as substitutes to titanium alloy, in fabrication of implants and attachments to support mandibular overdenture, aiming to overcome stress shielding effect of titanium alloy implants.
Sherif Elsayed, Yousra Ahmed, Mohamed I. El-Anwar, Enas Elddamony, Reem Ashraf   +4 more
doaj   +2 more sources

Stereomicroscope-Based in Vitro Study Evaluating the Marginal and Internal Fit of PEEK and PEKK Crowns [PDF]

Journal of Pharmacy and Bioallied Sciences
PurposeThe aim of the in vitro study was to compare the internal merge and marginal perfection of polyetheretherketone (PEEK) and polyetherketoneketone (PEKK) crowns under a stereomicroscope.
Chandramohan Giri, Soundar Joephin, Shankar Kamala, Missier Mary Sheloni, Hines Allen Jim   +4 more
doaj   +2 more sources

Biomechanical Evaluation of Cantilevered 2-Unit Implant-Supported Prostheses: A 3D Finite Element Study [PDF]

International Dental Journal
Objective: To assess the biomechanical performance of cantilevered 2-unit implant-supported prostheses with zirconia and polyetherketoneketone (PEKK) under 3 loading conditions.
Hatem S. Sadek, Noha M. Anany, Al-Hassan Diab, Mohamed I. El-Anwar, Abdulaziz Alhotan, Mostafa Aldesoki, Christoph Bourauel, Tarek M. Elshazly   +7 more
doaj   +2 more sources