Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sanchez, J.L. Neiva, A.C. Marques, J.M. Missell, F.P. de Amorin, H.S. Domingues, P.H. Amaral Jr., M.R. |
| Copyright Year | 1965 |
| Abstract | This work reports the existence of the new ternary phase Nd/sub 3/Fe/sub 29-x/W/sub x/ (monoclinic, prototype Nd/sub 3/(Fe,Ti)/sub 29/), opening the perspective of a W-stabilized family of compounds. Alloys with starting composition Nd/sub 3/Fe/sub 27.5/W/sub 1.5/ were prepared by argon arc melting from pure elements. As-cast ingots were wrapped in tantalum foils and annealed at 1100/spl deg/C during three weeks followed by quenching in water. The homogeneous region of the best sample was characterized by structural and magnetic measurements. X-ray diffraction patterns were analyzed by the Rietveld method. For the 3:29 structure the space group A2/m was successfully assumed. The analysis shows that Nd/sub 3/(Fe,W)/sub 29/ is the main phase (73 wt.%) with lattice parameters a=10.615(2) /spl Aring/, b=8.588(2) /spl Aring/, c=9.754(2) /spl Aring/ and /spl beta/=96.74(1)/sup 0/. It co-exists with Nd/sub 2/(Fe,W)/sub 17/ (25 wt.%) and /spl alpha/-(Fe,W) (2 wt.%). The thermomagnetic curve of the specimens shows well defined transitions at 72/spl deg/C and 123/spl deg/C, which we attribute to the 2:17 and 3:29 phases, respectively. The composition of the 3:29 compound, measured by EDAX analysis, is Nd/sub 10.1/Fe/sub 85.6/W/sub 4.3/. The average composition of the homogeneous region, calculated from the composition (measured by EDAX analysis) and weight fractions (calculated by Rietveld analysis of the XRD patterns) of the phases, is Nd/sub 10.1/Fe/sub 86.0/W/sub 3.9/. In addition, a small amount of /spl alpha/-(Fe,W) is detected. The saturation magnetization was estimated as 102 emu/g. The temperature dependence of the saturation magnetization and AC susceptibility are reported. The latter shows a magnetic anomaly at 259 K which suggests the existence of a spin reorientation transition. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3847 |
| Ending Page | 3849 |
| Page Count | 3 |
| File Size | 335640 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 33 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic properties Neodymium Magnetic analysis Pattern analysis Saturation magnetization Prototypes Iron alloys Argon Annealing Magnetic variables measurement |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|