Oxidative processes during heat treatment in intermetallic SmCo5 powder
Oksidacioni procesi pri zagrevanju praha intermetalnog jedinjenja SmCo5
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
SmCo5 magnet / SmCo5 powder / oxidation / thermogravimetric analysis / X-ray analysisИзвор:
Journal of the Serbian Chemical Society, 1996, 61, 3, 189-195Издавач:
- Belgrade : Serbian Chemical Society / Beograd : Srpsko hemijsko društvo
Финансирање / пројекти:
- Ministry of Science and Technology of Serbia (Project S. 3.03.26.029 1994/97)
Институција/група
IHTMTY - JOUR AU - Talijan, Nadežda M. AU - Milutinović Nikolić, Aleksandra AU - Jovanović, Žarko PY - 1996 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4136 AB - 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. PB - Belgrade : Serbian Chemical Society / Beograd : Srpsko hemijsko društvo T2 - Journal of the Serbian Chemical Society T1 - Oxidative processes during heat treatment in intermetallic SmCo5 powder T1 - Oksidacioni procesi pri zagrevanju praha intermetalnog jedinjenja SmCo5 VL - 61 IS - 3 SP - 189 EP - 195 UR - https://hdl.handle.net/21.15107/rcub_cer_4136 ER -
@article{ author = "Talijan, Nadežda M. and Milutinović Nikolić, Aleksandra and Jovanović, Žarko", year = "1996", 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.", publisher = "Belgrade : Serbian Chemical Society / Beograd : Srpsko hemijsko društvo", journal = "Journal of the Serbian Chemical Society", title = "Oxidative processes during heat treatment in intermetallic SmCo5 powder, Oksidacioni procesi pri zagrevanju praha intermetalnog jedinjenja SmCo5", volume = "61", number = "3", pages = "189-195", url = "https://hdl.handle.net/21.15107/rcub_cer_4136" }
Talijan, N. M., Milutinović Nikolić, A.,& Jovanović, Ž.. (1996). Oxidative processes during heat treatment in intermetallic SmCo5 powder. in Journal of the Serbian Chemical Society Belgrade : Serbian Chemical Society / Beograd : Srpsko hemijsko društvo., 61(3), 189-195. https://hdl.handle.net/21.15107/rcub_cer_4136
Talijan NM, Milutinović Nikolić A, Jovanović Ž. Oxidative processes during heat treatment in intermetallic SmCo5 powder. in Journal of the Serbian Chemical Society. 1996;61(3):189-195. https://hdl.handle.net/21.15107/rcub_cer_4136 .
Talijan, Nadežda M., Milutinović Nikolić, Aleksandra, Jovanović, Žarko, "Oxidative processes during heat treatment in intermetallic SmCo5 powder" in Journal of the Serbian Chemical Society, 61, no. 3 (1996):189-195, https://hdl.handle.net/21.15107/rcub_cer_4136 .