Author: K. J. Kronenberg
Publisher:
ISBN:
Category : Ferromagnetic materials
Languages : en
Pages : 30
Book Description
Magnets of iron, cobalt and iron-cobalt particles were made with different matrix materials. Magnets pressed from a gel of magnetic particles and mercury were used to evaluate the progress of the various phases of the process. These magnets are commonly referred to as ''mercury matrix'' magnets. In order to eliminate the mercury these magnets were distilled at high temperatures under a vacuum. This resulted in the production of porous blocks of fine particles which were either vacuum impregnated with resins or crushed, mixed with binder and repressed. Lead was added to the heat treated gel before pressing. These magnets were distilled, crushed and repressed. Magnets were made by superficially oxidizing submicron particles of iron-cobalt. Gross structure in fine particle magnets was revealed by electron micrographs.
Surface Investigations on Permanent Magnets
Author: K. J. Kronenberg
Publisher:
ISBN:
Category : Ferromagnetic materials
Languages : en
Pages : 30
Book Description
Magnets of iron, cobalt and iron-cobalt particles were made with different matrix materials. Magnets pressed from a gel of magnetic particles and mercury were used to evaluate the progress of the various phases of the process. These magnets are commonly referred to as ''mercury matrix'' magnets. In order to eliminate the mercury these magnets were distilled at high temperatures under a vacuum. This resulted in the production of porous blocks of fine particles which were either vacuum impregnated with resins or crushed, mixed with binder and repressed. Lead was added to the heat treated gel before pressing. These magnets were distilled, crushed and repressed. Magnets were made by superficially oxidizing submicron particles of iron-cobalt. Gross structure in fine particle magnets was revealed by electron micrographs.
Publisher:
ISBN:
Category : Ferromagnetic materials
Languages : en
Pages : 30
Book Description
Magnets of iron, cobalt and iron-cobalt particles were made with different matrix materials. Magnets pressed from a gel of magnetic particles and mercury were used to evaluate the progress of the various phases of the process. These magnets are commonly referred to as ''mercury matrix'' magnets. In order to eliminate the mercury these magnets were distilled at high temperatures under a vacuum. This resulted in the production of porous blocks of fine particles which were either vacuum impregnated with resins or crushed, mixed with binder and repressed. Lead was added to the heat treated gel before pressing. These magnets were distilled, crushed and repressed. Magnets were made by superficially oxidizing submicron particles of iron-cobalt. Gross structure in fine particle magnets was revealed by electron micrographs.
U.S. Government Research Reports
Manganese-Aluminum for Permanent Magnet Material
Author: M. A. Bohlmann
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 36
Book Description
Manganese-aluminum alloys with 68-73% Mn were developed for permanent magnet material. Best magnetic properties were obtained in 71% Mn alloys. Maximum energy product was 4.0 x 10 to the 6th power GOe, reached by homogenization, controlled quenching, reducing area 86% by swaging in jackets, and annealing. Process parameters were studied to fine the optima for the brittle alloy. Deformation of the alloy produces a preferred magnetic axis and raises coercive force. Swaging was best, but deforming by turning cast bars into chips on a lathe gave the best ''particle'' magnets and was easiest. A review of the crystal and magnetic structures leads to the deduction that dislocation lines involve Mn atoms arranged antiferromagnetically which subdivide larger ferromagnetic regions. The magnetic saturation is not reached in practical magnetizing field. The magnetic induction decreases with increasing temperatures to Curie point.
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 36
Book Description
Manganese-aluminum alloys with 68-73% Mn were developed for permanent magnet material. Best magnetic properties were obtained in 71% Mn alloys. Maximum energy product was 4.0 x 10 to the 6th power GOe, reached by homogenization, controlled quenching, reducing area 86% by swaging in jackets, and annealing. Process parameters were studied to fine the optima for the brittle alloy. Deformation of the alloy produces a preferred magnetic axis and raises coercive force. Swaging was best, but deforming by turning cast bars into chips on a lathe gave the best ''particle'' magnets and was easiest. A review of the crystal and magnetic structures leads to the deduction that dislocation lines involve Mn atoms arranged antiferromagnetically which subdivide larger ferromagnetic regions. The magnetic saturation is not reached in practical magnetizing field. The magnetic induction decreases with increasing temperatures to Curie point.
Nuclear Science Abstracts
Business Service Check List
Electrorheological Fluids and Magnetorheological Suspensiosn
Author: Georges Bossis
Publisher: World Scientific
ISBN: 9810249373
Category : Science
Languages : en
Pages : 906
Book Description
This book contains up-to-date information on the state of the art of research and applications in electro- and magnetorheology. A total of 130 papers are presented in four sections. The first section is devoted to the various applications of ER and MR fluids, like polishing, microfluidics, vibration control, robots, shock absorbers and dampers, MR and ER valves. The second part deals with the experimental characterization as well as the theoretical prediction of the mesostructure resulting from field-induced phase separation. The dynamics of phase separation is also included in this section. The third section is about the material properties; it includes papers on new compositions of ER or MR fluids, polymer blends, magneto- or electroactive elastomers and gels. The last section, about physical mechanisms, presents experiments and theories on the rheology of the fluids and its connection with microhydrodynamics and the structure of field-induced aggregates.
Publisher: World Scientific
ISBN: 9810249373
Category : Science
Languages : en
Pages : 906
Book Description
This book contains up-to-date information on the state of the art of research and applications in electro- and magnetorheology. A total of 130 papers are presented in four sections. The first section is devoted to the various applications of ER and MR fluids, like polishing, microfluidics, vibration control, robots, shock absorbers and dampers, MR and ER valves. The second part deals with the experimental characterization as well as the theoretical prediction of the mesostructure resulting from field-induced phase separation. The dynamics of phase separation is also included in this section. The third section is about the material properties; it includes papers on new compositions of ER or MR fluids, polymer blends, magneto- or electroactive elastomers and gels. The last section, about physical mechanisms, presents experiments and theories on the rheology of the fluids and its connection with microhydrodynamics and the structure of field-induced aggregates.
Issues in General Physics Research: 2013 Edition
Author:
Publisher: ScholarlyEditions
ISBN: 1490106901
Category : Science
Languages : en
Pages : 1211
Book Description
Issues in General Physics Research / 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Quantum Physics. The editors have built Issues in General Physics Research: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Quantum Physics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Physics Research: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Publisher: ScholarlyEditions
ISBN: 1490106901
Category : Science
Languages : en
Pages : 1211
Book Description
Issues in General Physics Research / 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Quantum Physics. The editors have built Issues in General Physics Research: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Quantum Physics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Physics Research: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Bureau of Mines Research
Field and Service Robotics
Author: Christian Laugier
Publisher: Springer Science & Business Media
ISBN: 3540754032
Category : Technology & Engineering
Languages : en
Pages : 589
Book Description
This books presents the results of the 6th edition of "Field and Service Robotics" FSR03, held in Chamonix, France, July 2007. The conference provided a forum for researchers, professionals and robot manufacturers to exchange up-to-date technical knowledge and experience. This book offers a collection of a broad range of topics including: Underwater Robots and Systems, Autonomous Navigation for Unmanned Aerial Vehicles, Simultaneous Localization and Mapping, and Climbing Robotics.
Publisher: Springer Science & Business Media
ISBN: 3540754032
Category : Technology & Engineering
Languages : en
Pages : 589
Book Description
This books presents the results of the 6th edition of "Field and Service Robotics" FSR03, held in Chamonix, France, July 2007. The conference provided a forum for researchers, professionals and robot manufacturers to exchange up-to-date technical knowledge and experience. This book offers a collection of a broad range of topics including: Underwater Robots and Systems, Autonomous Navigation for Unmanned Aerial Vehicles, Simultaneous Localization and Mapping, and Climbing Robotics.
Magnetical Investigations
Author: William SCORESBY (the Younger.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 472
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 472
Book Description