CER - Central Repository
Institute of Chemistry, Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Oxidative processes during heat treatment in intermetallic SmCo5 powder

Oksidacioni procesi pri zagrevanju praha intermetalnog jedinjenja SmCo5

Thumbnail
1996
bitstream_18835.pdf (809.4Kb)
Authors
Talijan, Nadežda M.
Milutinović Nikolić, Aleksandra
Jovanović, Žarko
Article (Published version)
,
Serbian Chemical Society / Srpsko hemijsko društvo
Metadata
Show full item record
Abstract
Understanding of the thermal stability of intermetallic SmCo5 powder is essential for designing the working atmosphere in all phases of the technological procedure in the production of sintered SmCo5 magnets to obtain maximal magnetic properties. The thermal stability of the SmCo5 powder with defined chemical composition and particle size was investigated in the interval from 20 to 900*C. It was found by thermogravimetic analysis (TGA) that up to 240*C, the oxidation of SmCo5 does not occur. X-Ray diffraction of the thermogravimetric experimental residue of the SmCo5 powder, heated at 240*C, yielded only the presence of the SmCo5 phase. By X-ray diffraction analysis different crystal forms were identified depending on the maximal heating temperature. The following phases were identified: Sm2O3, Co, CoO, Co3O4 and SmCoO3. According to TG and X-ray results, for each of the investigated temperatures, the corresponding chemical reactions were established. The experimental data from both ...the thermal and X-ray investigations confirm that the phases of pressing and aligning the SmCo5 powder, in the process of producing sintered SmCo5 magnets, may be performed without a protective atmosphere.

Keywords:
SmCo5 magnet / SmCo5 powder / oxidation / thermogravimetric analysis / X-ray analysis
Source:
Journal of the Serbian Chemical Society, 1996, 61, 3, 189-195
Publisher:
  • Belgrade : Serbian Chemical Society / Beograd : Srpsko hemijsko društvo
Projects:
  • Ministry of Science and Technology of Serbia (Project S. 3.03.26.029 1994/97)

ISSN: 0352-5139

Scopus: 2-s2.0-0040063692
[ Google Scholar ]
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/4136
Collections
  • Radovi istraživača / Researchers' publications
Institution
IHTM

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB