Sökning: "powder properties"
Visar resultat 21 - 25 av 337 avhandlingar innehållade orden powder properties.
21. Powder Bed Structure and Imbibition - A Study of Spray Dried Dairy Powders
Sammanfattning : The formation of lumps during powder dissolution is undesirable in most cases. In a world where the use of dry products is increasing, incomplete powder dissolution and lump formation can for instance affect the color of a paint or the nutritional content of baby food. LÄS MER
22. Additively Manufactured Inconel 718 : Microstructures and Mechanical Properties
Sammanfattning : Additive manufacturing (AM), also known as 3D printing, has gained significant interest in aerospace, energy, automotive and medical industries due to its capabilities of manufacturing components that are either prohibitively costly or impossible to manufacture by conventional processes. Among the various additive manufacturing processes for metallic components, electron beam melting (EBM) and selective laser melting (SLM) are two of the most widely used powder bed based processes, and have shown great potential for manufacturing high-end critical components, such as turbine blades and customized medical implants. LÄS MER
23. Electron beam powder bed fusion processing of stainless steels
Sammanfattning : Additive manufacturing (AM) is still a relatively new technology. In contrast to traditional machining where material is removed from a blank, AM is used to fuse a feedstock material into complex shapes, layer by layer, starting from an empty workspace. LÄS MER
24. Quasicrystal Approximants in the RE-Au-SM systems (RE = Gd, Tb, Ho, Yb; SM = Si, Ge) : Syntheses, structures and properties
Sammanfattning : In this study, new Tsai-type 1/1 quasicrystal approximants (ACs) in the RE-Au-SM systems (RE = Gd, Tb, Ho, Yb; SM = Si, Ge) were synthesized using high temperature synthesis techniques such as self-flux, arc-melting-annealing and novel arc-melting-self-flux methods. The syntheses not only provided appropriate samples for the intended structural and physical property measurements but could also be adapted to other systems, especially where crystal growth is a challenge. LÄS MER
25. Transition Metal Hydride Complexes and Hydrogenated Gallium Clusters : Synthesis and Structural Properties
Sammanfattning : Synthesis and structural characterisation of metal hydrides in two important systems are presented. The first system presented is low valent cobalt and nickel complex hydrides with the compositions BaMg5Co2H10, RbMg5CoNiH10, SrMg2CoH7and Sr4Mg4Co3H19 featuring nickel with oxidation state of 0 and cobalt with oxidation state +I and -I. LÄS MER