TY - GEN
T1 - Coercivity dependence of microwave characteristics in mechanically alloyed SrFe11.9-ymny/2Tiy/2in0.1o19 (y = 0; 0.3; and 1.2)
AU - Leyona, T. A.
AU - Mas Ayu, E. H.
AU - Taryana, Yana
AU - Manaf, Azwar
N1 - Funding Information:
We are thankful for the financial support provided by the Directorate of Research and Community Service Universitas Indonesia under program Grants of Publikasi Terindeks International (PUTI) under contract No. NKB-1943/UN2.RST/HKP.05.00/2020. The authors gratefully acknowledge the support of Postgraduate Program of Materials Science Universitas Indonesia and the Research Centre for Electronics and Telecommunication, Bandung, Indonesian Institute of Science Indonesia Ministry of Research, Technology and Higher Education for research facilities.
Publisher Copyright:
© 2021 Trans Tech Publications Ltd, Switzerland.
PY - 2021
Y1 - 2021
N2 - Recent investigation on indium substituted SrFe11.9In0.1O19 has shown excellent remanence to the saturation magnetization ratio of much greater than the 0.5 that most suitable for isotropic permanent magnets. In this work, such material SrFe12-xInxO19 (x = 0; 0,05; 0,1; 0,2; and 0,5) with the highest value of remanent magnetization was modified by the co-substitution of Fe+3 in SrFe11.9In0.1O19 with Mn and Ti ions to reduce the coercivity which is suitable for radar absorbing applications. A series of magnetic material with SrFe11.9-yMny/2Tiy/2In0,1O19 (y = 0; 0.3 and 1.2) compositions were prepared by mechanical alloying process. The hysteresis loop for SrFe11.9 yMny/2Tiy/2In0,1O19 samples showed that the coercivity was progressively reduced from 293.45 kA/m for y = 0 to 78.86 kA/m for y = 1.2 with the remanence remained significantly un-changed. The reflection loss (RL) which calculated from S-parameters of vector network analyzers (VNA) has resulted in excellent absorption characteristics of SrFe11.9-yMny/2Tiy/2In0,1O19 driven by high remanent magnetization and reduced coercivity.
AB - Recent investigation on indium substituted SrFe11.9In0.1O19 has shown excellent remanence to the saturation magnetization ratio of much greater than the 0.5 that most suitable for isotropic permanent magnets. In this work, such material SrFe12-xInxO19 (x = 0; 0,05; 0,1; 0,2; and 0,5) with the highest value of remanent magnetization was modified by the co-substitution of Fe+3 in SrFe11.9In0.1O19 with Mn and Ti ions to reduce the coercivity which is suitable for radar absorbing applications. A series of magnetic material with SrFe11.9-yMny/2Tiy/2In0,1O19 (y = 0; 0.3 and 1.2) compositions were prepared by mechanical alloying process. The hysteresis loop for SrFe11.9 yMny/2Tiy/2In0,1O19 samples showed that the coercivity was progressively reduced from 293.45 kA/m for y = 0 to 78.86 kA/m for y = 1.2 with the remanence remained significantly un-changed. The reflection loss (RL) which calculated from S-parameters of vector network analyzers (VNA) has resulted in excellent absorption characteristics of SrFe11.9-yMny/2Tiy/2In0,1O19 driven by high remanent magnetization and reduced coercivity.
KW - Hexaferrite
KW - Magnetic properties
KW - Microwave characteristics
KW - Permanent magnets
KW - Radar absorbing materials
UR - http://www.scopus.com/inward/record.url?scp=85107199582&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.1028.56
DO - 10.4028/www.scientific.net/MSF.1028.56
M3 - Conference contribution
AN - SCOPUS:85107199582
SN - 9783035718690
T3 - Materials Science Forum
SP - 56
EP - 61
BT - Functional Materials
A2 - Risdiana, null
A2 - Kurniawan, Budhy
A2 - Darminto, null
A2 - Nugroho, A.A.
PB - Trans Tech Publications Ltd
T2 - 5th International Conference on Functional Materials Science, ICFMS 2020
Y2 - 11 November 2020 through 12 November 2020
ER -