{"title":"Magical spherical particles produced by centrifugal atomization","authors":"Dragan Uskoković , Vuk Uskoković","doi":"10.1016/j.powtec.2024.120017","DOIUrl":null,"url":null,"abstract":"<div><p>Centrifugal atomization by the rotating electrode process enables the production of powders with perfectly spherical particles. In this article, the history of centrifugal atomization and the selected recent innovations in this particle processing technology are discussed. Numerous materials and applications directly benefitting from this process are highlighted. Traditionally, this has included the alloys of titanium, tungsten, molybdenum and other metals, which continue to be widely applied in high technologies. More up-and-coming materials discussed include uranium-based fuels for nuclear fission reactors, neutron multipliers for fusion reactors, and magnetocaloric materials for converting gaseous into liquid hydrogen. In addition to the review of materials obtained for these distinct applications using the rotating electrode process, the fundamental principles governing the mechanism of formation of spherical particles constituting such materials are elaborated. Key limitations of the method are also discussed alongside the present and future directions for innovation inspired by the desire to solve them.</p></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":null,"pages":null},"PeriodicalIF":4.5000,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0032591024006612/pdfft?md5=d33e28caba8bb7bf0bb9e7a9cf552323&pid=1-s2.0-S0032591024006612-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Powder Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0032591024006612","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Centrifugal atomization by the rotating electrode process enables the production of powders with perfectly spherical particles. In this article, the history of centrifugal atomization and the selected recent innovations in this particle processing technology are discussed. Numerous materials and applications directly benefitting from this process are highlighted. Traditionally, this has included the alloys of titanium, tungsten, molybdenum and other metals, which continue to be widely applied in high technologies. More up-and-coming materials discussed include uranium-based fuels for nuclear fission reactors, neutron multipliers for fusion reactors, and magnetocaloric materials for converting gaseous into liquid hydrogen. In addition to the review of materials obtained for these distinct applications using the rotating electrode process, the fundamental principles governing the mechanism of formation of spherical particles constituting such materials are elaborated. Key limitations of the method are also discussed alongside the present and future directions for innovation inspired by the desire to solve them.
期刊介绍:
Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests:
Formation and synthesis of particles by precipitation and other methods.
Modification of particles by agglomeration, coating, comminution and attrition.
Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces).
Packing, failure, flow and permeability of assemblies of particles.
Particle-particle interactions and suspension rheology.
Handling and processing operations such as slurry flow, fluidization, pneumatic conveying.
Interactions between particles and their environment, including delivery of particulate products to the body.
Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters.
For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.