Results 71 to 80 of about 130,855 (301)

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source

Mechanisms for removing impurities in a single crystal superalloy by electron beam drip melting

Journal of Materials Research and Technology
The development of clean and green manufacturing of superalloys has attracted widespread attention. The returned scrap of superalloys, however, contains a significant amount of oxygen (O), nitrogen (N), and inclusions, which cannot be used effectively ...
Gengyi Dong, Yijiala Yiliti, Xiaoying Liu, Xiaogang You, Wenjun Han, Liyang Dong, Kai Chang, Haijing Zhou, Pengting Li, Yinong Wang   +9 more
doaj   +1 more source

A review of critical repeatability and reproducibility issues in powder bed fusion

Materials & Design, 2020
Due to the many advantages associated with metal additive manufacturing (AM) processes, research into these technologies has grown significantly over the last number of years.
L. Dowling, J. Kennedy, S. O'Shaughnessy, D. Trimble   +3 more
doaj   +1 more source

The development and applications of ultrafast electron nanocrystallography

, 2009
We review the development of ultrafast electron nanocrystallography as a method for investigating structural dynamics for nanoscale materials and interfaces.
Aric Pell, Chong-Yu Ruan, Hargittai, Kern, McGreevy, Peng, Ramani K. Raman, Richard J. Worhatch, Ryan A. Murdick, Sato, Warren, Yoshie Murooka   +11 more
core   +1 more source

Gamma-ray bursts and X-ray melting of material as a potential source of chondrules and planets [PDF]

, 2004
The intense radiation from a gamma-ray burst (GRB) is shown to be capable of melting stony material at distances up to 300 light years which subsequently cool to form chondrules.
Carr, A. J., Duggan, P., French, J., Hanlon, L., McBreen, B., McBreen, S., Metcalfe, L., Winston, E.   +7 more
core   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Additive manufacturing of novel complex tungsten components via electron beam melting: Basic properties and evaluation of the high heat flux behavior

Nuclear Materials and Energy
The basic principle of electron beam melting (EBM) technology is the additive generation of structures by the selective melting of metal powder layer by layer with an electron beam under vacuum conditions.
Steffen Antusch, Alexander Klein, Siegfried Baumgärtner, Carsten Bonnekoh, Bernd Böswirth, Daniel Dorow-Gerspach, Stefan Dietrich, Marco Ehrhardt, Bradut-Eugen Ghidersa, Henri Greuner, Markus Guttmann, Thomas Hanemann, Judith Jung, Joachim Konrad, Michael Rieth   +14 more
doaj   +1 more source

The Effect of Post-Processing on the Mechanical Behavior of Ti6Al4V Manufactured by Electron Beam Powder Bed Fusion for General Aviation Primary Structural Applications

Aerospace, 2020
In this work a mechanical characterization of Ti6Al4V processed by electron beam powder bed fusion additive manufacturing was carried out to investigate the viability of this technology for the manufacturing of flyable parts for general aviation aircraft.
Carmine Pirozzi, Stefania Franchitti, Rosario Borrelli, Antonio Chiariello, Luigi Di Palma   +4 more
doaj   +1 more source

A greedy algorithm for optimal heating in powder-bed-based additive manufacturing

Journal of Mathematics in Industry, 2021
Powder-bed-based additive manufacturing involves melting of a powder bed using a moving laser or electron beam as a heat source. In this paper, we formulate an optimization scheme that aims to control this type of melting.
Robert Forslund, Anders Snis, Stig Larsson   +2 more
doaj   +1 more source