Results 111 to 120 of about 569,570 (305)
, 2000 The effect of the powder average on the peak shapes and positions in neutron pair distribution functions of polycrystalline materials is examined. It is shown that for highly anisotropic crystals, the powder average leads to shifts in peak positions and ...
A. R. Bishop +29 more
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Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
MetalsThis review explores the critical role of powder quality in metal 3D printing and the importance of effective powder recycling strategies. It covers various metal 3D printing technologies, in particular Selective Laser Melting, Electron Beam Melting ...
Alex Lanzutti, Elia Marin
doaj +1 more source
Effect of Particle Shape on the Mixing of Powders
Journal of Pharmacy and Pharmacology, 1990 AbstractMixtures were prepared containing 200 g of 600 μm lactose and 0.5 g of 3 μm calcium carbonate of different particle shapes using a Y cone mixer. Measurements were made of the time required to achieve the acceptable standard deviation of mixing σA and of the segregation that occurred on subsequently vibrating the mixtures.
L W, Wong, N, Pilpel
openaire +2 more sources
A Nonvolume Preserving Plasticity Theory with Applications to Powder Metallurgy [PDF]
, 1983 A plasticity theory has been developed to predict the mechanical response of powder metals during hot isostatic pressing. The theory parameters were obtained through an experimental program consisting of hydrostatic pressure tests, uniaxial compression ...
Cassenti, B. N.
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Advanced Engineering Materials, EarlyView.The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann +6 more
wiley +1 more source
Application of superalloy powder metallurgy for aircraft engines [PDF]
In the last decade, Government/Industry programs have advanced powder metallurgy-near-net-shape technology to permit the use of hot isostatic pressed (HIP) turbine disks in the commercial aircraft fleet.
Dreshfield, R. L., Miner, R. V., Jr.
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Carbonates in space - The challenge of low temperature data
, 2007 Carbonates have repeatedly been discussed as possible carriers of stardust emission bands. However, the band assignments proposed so far were mainly based on room temperature powder transmission spectra of the respective minerals. Since very cold calcite
Baier, A. +3 more
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Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
Advantages and effectiveness of the powder metallurgy in manufacturing technologies
Metalurgija, 2018 Powder metallurgy is the manufacturing science of producing solid parts of desired geometry and material from powders. Although the process has existed for more than 100 years, over the past quarter century it has become widely recognized as a superior ...
A. Panda +4 more
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