Results 1 to 10 of about 9,059 (162)
Assessing the robustness of powder rheology and permeability measurements
Additive Manufacturing, 2020 Abstract Powder metallurgy processes rely on powder flowability. However, flowability is not an intrinsic property and depends on the measurement conditions. Standards have been developed to adjust measurement methods to various flow conditions but there is presently questions whether current methods are adapted to the specific requirements of powder
Lefebvre, L. P. +5 more
exaly +3 more sources
Experimental investigation of cohesive powder rheology
Powder Technology, 2000 An annular shear cell-type cohesive powder rheometer has been fabricated, which measures the shear and normal stress states over a range of shear rate and powder concentration. The rheological behavior of a 30-μm spherical silica powder and a 40-μm industrial polymer powder have been experimentally investigated for powder flow in the frictional regime.
J F Klausner
exaly +3 more sources
316L Stainless Steel Powders for Additive Manufacturing: Relationships of Powder Rheology, Size, Size Distribution to Part Properties [PDF]
Materials, 2020 Robert Groarke +2 more
exaly +2 more sources
Influence of powder state and rheology on sintering behaviour of SiC
Open Ceramics, 2021 The influence of conditioning state of a nano-SiC powder on its spark plasma sintering behaviour and microstructural properties is discussed. The powders were firstly deeply characterized by means of SEM, X-ray diffraction, specific surface area ...
Judith Boehmler +5 more
doaj +2 more sources
Recycled strontium hexaferrite powder behavior in the magneto fluidized state in dependence of the chamber fill factor [PDF]
E3S Web of Conferences, 2023 The magnetic powders affected by external magnetic fields can be transferred in the pseudo fluidized state to intensify the process of permanent magnets production.
Egorov Ivan +2 more
doaj +1 more source
Powder rheology and characterization of new and zinc recycled WC-6wt%Co powders
International Journal of Refractory Metals and Hard MaterialsFour industrially manufactured WC-6wt%Co powders were studied in terms of bulk properties, morphology and powder rheology. Two powders, comprising 100 % fresh raw material, a 100 % zinc recycled powder and a powder comprising 60 wt% zinc recycled and 40 wt% new material, were investigated.
Natasha Sacks
exaly +3 more sources
Rheological Behavior of Inconel 718 Powder for Electron-Beam Melting
Metals, 2022 Understanding the impact of powder reuse in powder-bed-fusion electron beams (PBF-EB) is key to maintain the processability and yield. Powder oxidation, due to exposure to high temperatures for a prolonged period of time, can lead to a decrease in ...
Laura Cordova, Ahmad Raza, Eduard Hryha
doaj +1 more source
Journal of Manufacturing and Materials Processing, 2023 Powder-bed-based additive manufacturing processes (PBAM) are sensitive to variations in powder feedstock characteristics, and yet the link between the powder properties and process performance is still not well established, which complicates the powder ...
Salah Eddine Brika, Vladimir Brailovski
doaj +1 more source
Impact of Powder Properties on the Rheological Behavior of Excipients
Pharmaceutics, 2021 With the emergence of quality by design in the pharmaceutical industry, it becomes imperative to gain a deeper mechanistic understanding of factors impacting the flow of a formulation into tableting dies. Many flow characterization techniques are present,
Pauline H. M. Janssen +4 more
doaj +1 more source
Effect of Moisture and Feedstock Variability on the Rheological Behavior of Corn Stover Particles
Frontiers in Energy Research, 2022 Continuous feeding, processing, and handling of biomass powders is pivotal to the economic viability of integrated biorefineries. However, current challenges associated with the operational reliability of bulk solids handling and transport greatly impact
Ziwei Cheng +8 more
doaj +1 more source