Results 31 to 40 of about 141,858 (165)

Advanced Powder Shaping Process-MIM.

open access: yesShigen-to-Sozai, 1997
Metal Injection Molding (MIM) process allows fully dense and net shaping of a variety of engineering materials. Therefore, MIM process is hoped to be an advanced powder processing technique to replace the conventional powder metallurgy (P/M) processes for exceeding the proven P/M capabilities.This presentation introduces a few examples of how and what ...
openaire   +2 more sources

The effect of particle shape on powder properties

open access: yesJournal of Pharmacy and Pharmacology, 1969
Abstract Sand in the size ranges 18–20 mesh, 30–36 mesh and 44–60 mesh has been separated by means of a vibratory shape-sorting table into fractions of different shape. The ratios of the surface area of the particles to their volumes-the shape coefficients-ranged from 8 to 15.
K, Ridgway, R, Rupp
openaire   +2 more sources

Effects of initial graphite particle size and shape on oxidation time in graphene oxide prepared by Hummers' method

open access: yesJournal of Science: Advanced Materials and Devices, 2017
The effects of initial graphite particle size and shape on oxidation time of graphite prepared by Hummers' method have been investigated. The oxidation was performed on three series of graphite particles, clod powder with two different sizes of 18 and 6 ...
Seyyedeh Saadat Shojaeenezhad   +2 more
doaj   +1 more source

Investigation of Metal Powder Blending for PBF-LB/M Using Particle Tracing with Ti-6Al-4V

open access: yesJournal of Manufacturing and Materials Processing
Laser-based powder bed fusion of metals (PBF-LB/M) is the most used additive manufacturing (AM) technology for metal parts. Nevertheless, challenges persist in effectively managing metal powder, particularly in blending methodologies in the choice of ...
Ina Ludwig   +2 more
doaj   +1 more source

Powder Manufacturing-Driven Variations in Flowability and Deformation Behavior of Pure Copper Powders for Cold Spray Additive Manufacturing

open access: yesMetals
The quality of the feedstock powder plays a key role in determining the properties of coatings produced by cold spray (CS). However, most commercially available powders are not specifically designed for CS, which makes it difficult to tailor powder ...
Niloofar Eftekhari, Hamid Jahed
doaj   +1 more source

Preparing of Barium Titanate Using Chemical Method and Studying of Its Structural Properties [PDF]

open access: yesEngineering and Technology Journal, 2012
Single crystalline BaTiO3 (BT) was prepared using TiCl4, BaCl2 and oxalic acid. The structure of the prepared nanocrystalline BT powders were a tetragonal perovskite according to XRD and HRTEM analysis.
Mukhlis M. Ismail   +4 more
doaj   +1 more source

Three-Jet Powder Flow and Laser–Powder Interaction in Laser Melting Deposition: Modelling Versus Experimental Correlations

open access: yesMetals, 2020
Powder flow and temperature distribution are recognized as essential factors in the laser melting deposition (LMD) process, which affect not only the layer formation but also its characteristics.
Muhammad Arif Mahmood   +6 more
doaj   +1 more source

Near-net shape powder metallurgy rhenium thruster [PDF]

open access: yes36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2000
This paper describes the development of a method to produce a near-net shape (NNS) powder metallurgy (PM) rhenium combustion chamber of the size 445 N (100 lbf) used in a high performance liquid apogee engine. These engines are used in low earth Orbit and geostationary orbit for satellite positioning systems.
Todd Leonhardt   +4 more
openaire   +1 more source

Factors Influencing Food Powder Flowability

open access: yesPowders
The flowability of food powders is a critical determinant of their processing efficiency, product quality, and overall operational success. This review delves into the intricacies of powder flowability, elucidating the factors that govern it and ...
Rajat Suhag   +2 more
doaj   +1 more source

3D Shape Analysis of Powder for Laser Beam Melting by Synchrotron X-ray CT

open access: yesQuantum Beam Science, 2019
The quality of components made by laser beam melting (LBM) additive manufacturing is naturally influenced by the quality of the powder bed. A packing density <1 and porosity inside the powder particles lead to intrinsic voids in the powder bed.
Tobias Thiede   +5 more
doaj   +1 more source

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