Results 71 to 80 of about 3,171 (198)
Evolution of PEKK crystallization measured in laser sintering
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)
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
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
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
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]
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
U radu se opisuje predavanje prof. Kettunena na temu nanovijih reformi lokalne samouprave u Finskoj iz komparativne perspektive.
openaire +6 more sources
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
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]
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

