Bibliographic Details
| Title: |
Structure, Spectra, Morphology, and Magnetic Properties of Nb5+ Ion-Substituted Sr Hexaferrites |
| Authors: |
Wenhao Zhang, Pengwei Li, Yonglun Wang, Jing Guo, Jie Li, Shuo Shan, Saisai Ma, Xing Suo |
| Source: |
Magnetochemistry, Vol 8, Iss 5, p 51 (2022) |
| Publisher Information: |
MDPI AG, 2022. |
| Publication Year: |
2022 |
| Collection: |
LCC:Chemistry |
| Subject Terms: |
M-type hexaferrite, spectrum, morphology, magnetic measurements, Chemistry, QD1-999 |
| More Details: |
SrFe12−xNbxO19 (x = 0.00–0.15) was here synthesized by a conventional solid-state reaction method. Thermogravimetry and differential scanning calorimetry curves revealed the sample reactions at four temperature ranges, and the optimal reaction stability was obtained at 1240 °C. A single-phase polycrystalline form of SrFe12O19 was obtained until the substitution reached 0.09, and the average crystallite size was found to be in the range of 44.21–60.02 nm. According to Fourier-transform infrared spectra, the formation of Fe–O bonds occurred at 69 and 450 cm−1 in the M-type ferrite, while Raman spectra revealed that all the peaks in the sample corresponded to Raman vibration modes and M-type structures. Through the shift of the peaks, it is speculated that Nb5+ enters into the lattice. The hysteresis loops of the samples were measured by vibrating-sample magnetometry, and the calculated results demonstrated that the coercivity increased with increases in the doping amount (686.3 Oe). At the same time, the saturation magnetization remained at a large value (>72.49 emu/g), which has rarely been reported. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2312-7481 |
| Relation: |
https://www.mdpi.com/2312-7481/8/5/51; https://doaj.org/toc/2312-7481 |
| DOI: |
10.3390/magnetochemistry8050051 |
| Access URL: |
https://doaj.org/article/94f1fce89d23446185b48c5905a0ff58 |
| Accession Number: |
edsdoj.94f1fce89d23446185b48c5905a0ff58 |
| Database: |
Directory of Open Access Journals |
