Low TC Fe-Cr-Nb-B glassy submicron powders for hyperthermia applications

被引:23
作者
Chiriac, H. [1 ]
Lupu, N. [1 ]
Lostun, M. [1 ]
Ababei, G. [1 ]
Grigoras, M. [1 ]
Danceanu, C. [1 ]
机构
[1] Natl Inst Res & Dev Tech Phys, Iasi, Romania
关键词
MAGNETIC-PROPERTIES; ALLOYS; CRYSTALLIZATION;
D O I
10.1063/1.4866840
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fe79.7-xNb0.3CrxB20 (x 11.5-13.5 at. %) submicron powders with glassy structure and sizes between a few tens of nm and 1 mu m have been prepared by high-energy ball milling from glassy melt-spun ribbons (MSRs) precursors. The glassy structure existing in the MSRs, and consisting of Fe-Cr clusters embedded within the (Fe, Nb)(3)B residual amorphous matrix, is preserved by milling the annealed MSRs in oleic acid and n-heptane. The glassy structure of the submicron powders confers the specific magnetic properties and allows tuning the Curie temperatures in the range of 15-50 degrees C. The precipitation of alpha-Fe in excess shifts the Curie temperature to 780 degrees C. The use of surfactants (oleic acid or heptane) avoids partially the agglomeration of powders, and their individual size goes down to 25-40 nm. The heating efficiency of the submicron powders in a. c. fields (H = 350mT and f = 153 kHz) evidences a working regime in the range of 33-45 degrees C, depending on Cr content, indicating the suitability of using the Fe-Cr-Nb-B powders for hyperthermia applications. (C) 2014 AIP Publishing LLC.
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页数:3
相关论文
共 10 条
[1]   Kinetics of crystallization of FeB-based amorphous alloys studied by neutron thermo-diffractometry [J].
Fernandez-Martinez, A. ;
Gorria, P. ;
Cuello, G. J. ;
Santos, J. D. ;
Perez, M. J. .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2007, 353 (8-10) :855-858
[2]   THE MICROSTRUCTURE EVOLUTION OF A FE73.5SI13.5B9NB3CU1 NANOCRYSTALLINE SOFT MAGNETIC MATERIAL [J].
HONO, K ;
HIRAGA, K ;
WANG, Q ;
INOUE, A ;
SAKURAI, T .
ACTA METALLURGICA ET MATERIALIA, 1992, 40 (09) :2137-2147
[3]   Intravenous magnetic nanoparticle cancer hyperthermia [J].
Huang, Hui S. ;
Hainfeld, James F. .
INTERNATIONAL JOURNAL OF NANOMEDICINE, 2013, 8 :2521-2532
[4]  
Lupu N., 2012, INTERMAG VANC CAN MA
[5]   Development of Fe-Nb-Cr-B Glassy Alloys With Low Curie Temperature and Enhanced Soft Magnetic Properties [J].
Lupu, Nicoleta ;
Chiriac, Horia ;
Corodeanu, Sorin ;
Ababei, Gabriel .
IEEE TRANSACTIONS ON MAGNETICS, 2011, 47 (10) :3791-3794
[6]   Influence of Cr additions in magnetic properties and crystallization process of amorphous iron based alloys [J].
Marin, P ;
Lopez, M ;
Hernando, A ;
Iqbal, Y ;
Davies, HA ;
Gibbs, MRJ .
JOURNAL OF APPLIED PHYSICS, 2002, 92 (01) :374-378
[7]   Low-temperature anomalies in resistance and magnetoresistance of amorphous FeCrB ribbons. Coexistence of ferromagnetism and local superconductivity? [J].
Okunev, V. D. ;
Samoilenko, Z. A. ;
Szewczyk, A. ;
Szymczak, R. ;
Szymczak, H. ;
Aleshkevych, P. ;
Wieckowski, J. ;
Khmelevskaya, V. S. ;
Antoshina, I. A. .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (29)
[8]   Magnetocaloric effect in amorphous and nanocrystalline Fe81-xCrxNb7B12 (x=0 and 3.5) alloys [J].
Skorvanek, I. ;
Kovac, J. ;
Marcin, J. ;
Svec, P. ;
Janickovic, D. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 449 :460-463
[9]   The role of alloying elements in Cu-free nanocrystalline Fe-Nb-B soft magnetic alloys [J].
Suzuki, K ;
Cadogan, JM ;
Sahajwalla, V ;
Inoue, A ;
Masumoto, T .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 :554-558
[10]   Mechanisms of hyperthermia in magnetic nanoparticles [J].
Vallejo-Fernandez, G. ;
Whear, O. ;
Roca, A. G. ;
Hussain, S. ;
Timmis, J. ;
Patel, V. ;
O'Grady, K. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2013, 46 (31)