Results 251 to 260 of about 90,054 (299)

Influence of Manufacturing Process on the Conductivity of Material Extrusion Components: A Comparison between Filament- and Granule-Based Processes. [PDF]

Polymers (Basel)
Nowka M, Hilbig K, Schulze L, Heller T, Goutier M, Vietor T.   +5 more
europepmc   +1 more source

Investigating the effects of extrusion temperatures and material extrusion rates on FFF-printed thermoplastics [PDF]

International Journal of Advanced Manufacturing Technology, 2021
Fused filament fabrication (FFF) is one of the most widely used additive manufacturing processes in the market. It is based on material extrusion and utilises thermoplastic materials to manufacture bespoke products.
Javaid Butt, Raghunath Bhaskar, Vahaj Mohaghegh   +2 more
exaly   +3 more sources

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Extrusion Rheometry of Fluid Materials

Journal of Dental Research, 1979
A capillary extrusion rheometer was developed and tested using Newtonian oils of known viscosity and seven endodontic sealers. The described ap paratus and technique appear appropriate for com parative assessment of the rheological characteristics of a variety of fluid dental materials.
S G, Vermilyea, E F, Huget, L B, De Simon   +2 more
openaire   +2 more sources

Recent Developments in Mechanochemical Materials Synthesis by Extrusion

Advanced Materials, 2016
Mechanochemical synthesis, i.e., reactions conducted by grinding solid reactants together with no or minimal solvent, has been demonstrated as an excellent technique for the formation of both organic and inorganic compounds. Mechanochemistry is viewed as an alternative approach to chemical synthesis and is not always considered when developing ...
Crawford, Deborah E., Casaban, J.
openaire   +4 more sources

Extrusion and Co-extrusion: A Technology in Probiotic Encapsulation with Alternative Materials

Current Pharmaceutical Biotechnology
: Encapsulation, in particular extrusion and co-extrusion, is a common practice to protect probiotics from the harsh conditions of the digestive tract as well as processing. Hydrocolloids, including proteins and carbohydrates, natural or modified, are a group of ingredients used as the wall material in extrusion.
Aziz Homayouni-Rad, Amir M. Mortazavian, Hadi Pourjafar, Saba Kamalledin Moghadam   +3 more
openaire   +2 more sources

Extrusion behavior of viscoelastic materials

Journal of Colloid Science, 1950
Abstract The relation between viscoelastic properties and extrusion characteristics is discussed. It is shown that materials characterized by nonlinear deformation-time properties necessarily exhibit a nonlinear relation between volume rate of discharge and pressure in extrusion.
F.D Dexter, G.J Dienes
openaire   +1 more source

Capillary extrusion of composite materials

Polymer Engineering & Science, 1971
AbstractInvestigations on the extrusion characteristics of composite systems were performed on the Sieglaff‐McKelvey capillary rheometer, with particular emphasis on the characterization of flow instability and “melt fracture” phenomena. The mechanisms of melt fracture appear to be identical for both the filled and unfilled polymers (1.
openaire   +2 more sources

The Extrusion of Rate Sensitive Materials

1971
The principal factors affecting extrusion pressure, viz., temperature, ram speed, die geometry and conditions of lubrication, are discussed briefly. Emphasis is given to the importance of determining the area profile of the die, and through it the strain rate profile.
J. J. Jonas, T. Chandra
openaire   +1 more source