Results 71 to 80 of about 3,171 (198)

Evolution of PEKK crystallization measured in laser sintering

open access: yesFrontiers 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   +4 more
openaire   +2 more sources

A Kinetic Framework for the Pyrolysis of Poly(Ether‐Ketone‐Ketone) (PEKK)

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 13, April 5, 2026.
Crosslinking influences poly(ether‐ether‐ketone) (PEKK) pyrolysis. ABSTRACT Research to date on the thermal degradation of poly(ether‐ketone‐ketone) (PEKK) has largely been limited to low temperatures or analysis as part of a composite. Herein, we investigate the pyrolysis kinetics of neat PEKK from 480°C to 1000°C and characterize the degradation by ...
Matthew S. Schwenger   +3 more
wiley   +1 more source

Alveolar Bone Regeneration: Smart Biomaterials and Physical Stimulation

open access: yesJournal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 114, Issue 4, April 2026.
ABSTRACT Large‐area bone loss from disease, trauma, or congenital defects requires surgical procedures and bone grafting. Alveolar bone loss from severe periodontal disease and non‐unions often demands immediate grafting. Treating large alveolar bone defects using grafts and substitutes is challenging due to the complex oral environment, infection ...
Allen Zennifer   +5 more
wiley   +1 more source

Comparative Stress Analysis of Polyetherketoneketone (PEKK) Telescopic Crowns Supported by Different Primary Crown Materials

open access: yesApplied Sciences, 2022
The present study aimed to investigate the stress distribution of secondary telescopic crowns made of polyetherketoneketone (PEKK) combined with different primary crown (PC) materials (Zirconia, CoCr, Titanium, and PEKK) using finite element analysis ...
João Paulo Mendes Tribst   +6 more
doaj   +1 more source

Mechanical Characterization of Additively Manufactured Poly(3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate) Biopolymer

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 9, March 5, 2026.
Thermal behavior, specimen fabrication, and mechanical benchmarking of PHBH produced by additive manufacturing and injection molding. ABSTRACT Poly(3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate) (PHBH) is a biodegradable polyester with strong potential for marine and packaging applications common for thermoplastic polymers, yet its performance after being ...
Lorenzo De Noni   +4 more
wiley   +1 more source

Modelling the crush behaviour of thermoplastic composites [PDF]

open access: yes, 2016
Thermoplastic composites are likely to emerge as the preferred solution for meeting the high-volume production demands of passenger road vehicles. Substantial effort is currently being directed towards the development of new modelling techniques to ...
Falzon, Brian G., Tan, Wei
core   +1 more source

Predavanje Pekke Kettunena

open access: yesHrvatska i komparativna javna uprava, 2013
U radu se opisuje predavanje prof. Kettunena na temu nanovijih reformi lokalne samouprave u Finskoj iz komparativne perspektive.
openaire   +6 more sources

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

open access: yesJournal 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   +4 more
doaj   +1 more source

Impact of different CAD/CAM materials on internal and marginal adaptations and fracture resistance of endocrown restorations with: 3D finite element analysis

open access: yesBMC Oral Health, 2023
Purpose To assess and compare the impact of various computers aided design/manufacturing (CAD/CAM) materials on internal and marginal discrepancies, fracture resistance and failure probability of Endocrown restorations with 3D Finite Element analysis ...
Shaimaa Ahmed Abo El-Farag   +3 more
doaj   +1 more source

Kloosterman sums, elliptic curves, and irreducible polynomials with prescribed trace and norm [PDF]

open access: yes, 2007
Let $\F_q$ ($q=p^r$) be a finite field. In this paper the number of irreducible polynomials of degree $m$ in $\F_q[x]$ with prescribed trace and norm coefficients is calculated in certain special cases and a general bound for that number is obtained ...
Moisio, Marko
core   +1 more source

Home - About - Disclaimer - Privacy