Results 71 to 80 of about 106,979 (359)
Radiopacity degree of Bulk Fill composite resins [PDF]
RGO: Revista Gaúcha de OdontologiaObjective: To verify and compare the radiopacity of four composite resins available in the national market and analyze their compliance with International Standards Organization 4049 guidelines.
Tâmila da Silva Lopes Nunes +4 more
doaj +1 more source
Polyimide composites: Application histories [PDF]
, 1985 Advanced composite hardware exposed to thermal environments above 127 C (260 F) must be fabricated from materials having resin matrices whose thermal/moisture resistance is superior to that of conventional epoxy-matrix systems.
Poveromo, L. M.
core +1 more source
Advanced Engineering Materials, EarlyView.Ni‐base superalloys produced using additive manufacturing (AM) have a different response to heat treatments when compared to their conventional counterparts. Due to such unpredictability, various alloys with industrial interest are currently overlooked in most prior AM research.
Guilherme Maziero Volpato +6 more
wiley +1 more source
Acta Scientiarum. Health Sciences, 2015 The aim of this study was investigate the optical density of four different brands of composite resins of nanotechnology. The composite resins Estelite Sigma Quick® (Tokuyama), Esthet –X HD® (Dentsply), 4 Seasons® (Ivoclar Vivadent) and Filtek Z350XTTM (
Lilian Cristina Vessoni Iwaki +4 more
doaj +1 more source
Synthesis of improved phenolic resins [PDF]
Twenty seven addition cured phenolic resin compositions were prepared and tested for their ability to give char residues comparable to state-of-the-art phenolic resins.
Delano, C. B., Mcleod, A. H.
core +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley +1 more source
In Vitro Biocompatibility of Three Orthodontic Composite Resins on Human Oral Fibroblasts
Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2007 Introduction: In orthodontic therapy ,different materials are used and their presence in oral cavity may modify their properties. The purpose of this study was to evaluate the direct and indirect biocompatibility of three orthodontic composite resins on ...
M Vatani, MH Nasr Esfahani, S Sadeghian
doaj
Journal of the Formosan Medical Association, 2014 Polymerization shrinkage is one of the main causes of dental restoration failure. This study tried to conjugate two diisocyanate side chains to dimethacrylate resins in order to reduce polymerization shrinkage and increase the hardness of composite ...
Yih-Dean Jan +3 more
doaj +1 more source
Chemical and rheological evaluation of polymides [PDF]
Chemical and rheological evaluation techniques were developed for polyimide composite matrix resins. LARC 160 (AP-22), LARC 160 (Curithane 103), PMR 15 and PISO2 resins were investigated. Liquid and solid state rheological techniques were used to develop
Galeos, R., Maximovich, M., Wereta, A.
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Advanced Engineering Materials, EarlyView.A multimaterial approach is introduced to improve upon auxetic structures by combining two different polymers into the same reentrant honeycomb structure via additive manufacturing. The deformation behavior as well as the resulting Poisson's ratio are thereby improved significantly.
Alexander Engel +2 more
wiley +1 more source