Journal ArticleDOI
Powder flowability and density ratios: the impact of granules packing
TLDR
In this paper, a new flowability criterion based on a novel technique to determine a high packing density was proposed, which is more sensitive to differences in flowability, as quantified by the repose angle.About:
This article is published in Chemical Engineering Science.The article was published on 2003-07-01. It has received 222 citations till now. The article focuses on the topics: Angle of repose.read more
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Additive manufacturing of metallic components – Process, structure and properties
Tarasankar Debroy,Huiliang Wei,J.S. Zuback,T. Mukherjee,John W. Elmer,John O. Milewski,Allison M. Beese,Alexander E. Wilson-Heid,Amitava De,Wei Zhang +9 more
TL;DR: A review of the emerging research on additive manufacturing of metallic materials is provided in this article, which provides a comprehensive overview of the physical processes and the underlying science of metallurgical structure and properties of the deposited parts.
Journal ArticleDOI
The metallurgy and processing science of metal additive manufacturing
TL;DR: In this article, a review of additive manufacturing (AM) techniques for producing metal parts are explored, with a focus on the science of metal AM: processing defects, heat transfer, solidification, solid-state precipitation, mechanical properties and post-processing metallurgy.
Journal ArticleDOI
Additive manufacturing
TL;DR: Marshall has unique expertise in leveraging new digital tools, 3D printing, and other advanced manufacturing technologies and applying them to propulsion systems design and other aerospace materials to meet NASA mission and industry needs.
Journal ArticleDOI
The relationship between attractive interparticle forces and bulk behaviour in dry and uncharged fine powders
TL;DR: The physics of granular materials in ambient gases is governed by interparticle forces, gas-particle interaction, geometry of particle positions and geometry of particles contacts as mentioned in this paper, which are strongly dependent on the external forces, boundary conditions and on the assembling procedure.
Journal ArticleDOI
Dry particle coating for improving the flowability of cohesive powders
TL;DR: In this paper, the magnetic assisted impaction coater (MAIC) and the hybridizer (HB) were used to coat cornstarch powder with different size silica particles and the improvement in flowability was determined from angle of repose measurements using a Hosokawa powder tester.
References
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Journal ArticleDOI
The use of bulk density determination as a means of typifying the flow characteristics of loosely compacted powders under conditions of variable relative humidity
TL;DR: A countour diagram of constant Hausner ratio on coordinates of particle size and relative humidity allows the prediction of critical process relative humidities and zones of relatively stable process operation.
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Experimental investigation of a free falling powder jet and the air entrainment
TL;DR: In this article, a free falling powder jet of glass beads is investigated in terms of axial velocity profile at several distances ranging between 1 to 1500 mm from different orifices using a laser-Doppler velocimeter.
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Effect of size distribution on tapping properties of fine powder
TL;DR: In this article, the effect of size or size distribution on the packing density of fine powder under 50 μm was investigated. But no systematic data can be found about the effect that size distribution has on packing properties of a fine powder.
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Predicting the densest packings of ternary and quaternary mixtures of solid particles
Norio Ouchiyama,Tatsuo Tanaka +1 more
TL;DR: In this article, the methode d'estimation de la porosite proposee par les auteurs (1986, 1988) was used to predict nouvelles relations.
Journal ArticleDOI
Characteristics of fixed beds packed with anisotropic particles—Use of image analysis
Agnès Montillet,Laurence Le Coq +1 more
TL;DR: In this article, the top and bottom effects of fixed beds of anisotropic particles have been investigated in chemical engineering processes: beds of cylindrical catalyst pellets or beds of wood shavings in paper industry.