About Ferrites

solid oxide fuel cell cathode and electrolyte cross section by SEM

Ferrites are iron oxide-based ceramic materials with magnetic properties, useful in many types of electronic devices and building materials. Ferrites are hard, brittle, generally gray or black, and typically have a crystal structure which has more than one type of site for the cations. Usually the magnetic moments of the metal ions on sites of one type are parallel to each other and anti-parallel to the moments on at least one site of another type. Ferrites are produced by sintering finely powdered precursor compounds in molds, milling the resulting material into a fine powder, and then re-sintering, with the second sintering round usually conducted in a magnetic field to ensure that the particles align properly.

Commercial ferrites can be classified as hard or soft.

Soft ferrites are used in transformer or electromagnetic cores. They have low coercivity and high resistivity, and contain iron, oxygen, zinc, or manganese.

Hard ferrites have high coercivity, and therefore are used as permanent magnets. Since ferrite permanent magnets are cheaper, and also weaker, than other available permanent magnets, they are frequently used in household products such as refrigerator magnets, and as mediums for magnetic recording. Strontium ferrite, barium ferrite, and Cobalt Ferritecobalt ferrite are all considered hard ferrites.

Recent Research & Development for Ferrites

A Novel Study: The Effect of Graphene Oxide on the Morphology, Crystal Structure, Optical and Electrical Properties of Lanthanum Ferrite Based Nano Electroceramics Synthesized by Hydrothermal Method., Aydin, Cihat, Aydin Handan, Taskin Mustafa, and Yakuphanoglu Fahrettin , J Nanosci Nanotechnol, 2019 May 01, Volume 19, Issue 5, p.2547-2555, (2019)

Unary and binary adsorption studies of lead and malachite green onto a nanomagnetic copper ferrite/drumstick pod biomass composite., Khan, Moonis Ali, Otero Marta, Kazi Mohsin, Alqadami Ayoub Abdullah, Wabaidur Saikh Mohammad, Siddiqui Masoom Raza, Alothman Zeid Abdullah, and Sumbul Sadia , J Hazard Mater, 2019 Mar 05, Volume 365, p.759-770, (2019)

Electrical and Magnetic Properties of Barium Hexaferrite Modified Barium Zirconium Titanate Lead-Free Ceramics., Jarupoom, Pakpoom, Jaita Pharatree, Manotham Supalak, Phatungthane Thanatep, Chokethawai Komsanti, Randorn Chamnan, and Rujijanagul Gobwute , J Nanosci Nanotechnol, 2019 Mar 01, Volume 19, Issue 3, p.1276-1282, (2019)

Study of structural and magnetic properties and heat induction of gadolinium-substituted manganese zinc ferrite nanoparticles for in vitro magnetic fluid hyperthermia., Jadhav, S V., Shewale P S., Shin B C., Patil M P., Kim G D., Rokade A A., Park S S., Bohara R A., and Yu Y S. , J Colloid Interface Sci, 2019 Jan 17, Volume 541, p.192-203, (2019)

Active cobalt induced high catalytic performances of cobalt ferrite nanobrushes for the reduction of p-nitrophenol., Zhang, Yuxi, Fang Hao, Zhang Yanqiao, Wen Ming, Wu Dandan, and Wu Qingsheng , J Colloid Interface Sci, 2019 Feb 01, Volume 535, p.499-504, (2019)

Catalytic ozonation of di-n-butyl phthalate degradation using manganese ferrite/reduced graphene oxide nanofiber as catalyst in the water., Ren, Yueming, Zhang Huiyu, An Hongze, Zhao Ying, Feng Jing, Xue Lili, Luan Tianzhu, and Fan Zhuangjun , J Colloid Interface Sci, 2018 Sep 15, Volume 526, p.347-355, (2018)

Ultrafine Mn ferrite by anchoring in a cellulose framework for efficient toxic ions capture and fast water/oil separation., Wang, Hanwei, Chen Yipeng, Dang Baokang, Shen Xiaoping, Jin Chunde, Sun Qingfeng, and Pei Jianchuan , Carbohydr Polym, 2018 Sep 15, Volume 196, p.117-125, (2018)

Synthesis of zeolite/nickel ferrite/sodium alginate bionanocomposite via a co-precipitation technique for efficient removal of water-soluble methylene blue dye., Bayat, Mahsa, Javanbakht Vahid, and Esmaili Javad , Int J Biol Macromol, 2018 Sep, Volume 116, p.607-619, (2018)

Integrin αβ receptor targeting PET/MRI dual-modal imaging probe based on the Cu labeled manganese ferrite nanoparticles., Shi, Xudong, and Shen Langtao , J Inorg Biochem, 2018 Sep, Volume 186, p.257-263, (2018)

Doxorubicin hydrochloride - Loaded electrospun chitosan/cobalt ferrite/titanium oxide nanofibers for hyperthermic tumor cell treatment and controlled drug release., Radmansouri, Maryam, Bahmani Ehsan, Sarikhani Einollah, Rahmani Keivan, Sharifianjazi Fariborz, and Irani Mohammad , Int J Biol Macromol, 2018 Sep, Volume 116, p.378-384, (2018)

Synthesis of zinc ferrite/silver iodide composite with enhanced photocatalytic antibacterial and pollutant degradation ability., Xu, Yuanguo, Liu Qingqing, Xie Meng, Huang Shuquan, He Minqiang, Huang Liying, Xu Hui, and Li Huaming , J Colloid Interface Sci, 2018 Oct 15, Volume 528, p.70-81, (2018)

Synthesis and evaluation of layered double hydroxide/doxycycline and cobalt ferrite/chitosan nanohybrid efficacy on gram positive and gram negative bacteria., El-Shahawy, Ahmed A. G., El-Ela Fatma I. Abo, Mohamed Nada A., Eldine Zienab E., and Rouby Waleed M. A. El , Mater Sci Eng C Mater Biol Appl, 2018 Oct 01, Volume 91, p.361-371, (2018)

Flexible Lithium Ferrite Nanopillar Arrays for Bending Stable Microwave Magnetism., Lan, Guohua, Shen Lvkang, Lu Lu, Cao Cuimei, Jiang Changjun, Fu Huarui, You Caiyin, Lu Xiaoli, Ma Chunrui, Liu Ming, et al. , ACS Appl Mater Interfaces, 2018 Nov 07, (2018)

Correlation between the magnetic-microstructure and microwave mitigation ability of MCoFeO based ferrite-carbon black/PVA composites., Datt, Gopal, Kotabage Chetan, Datar Suwarna, and Abhyankar Ashutosh C. , Phys Chem Chem Phys, 2018 Nov 07, Volume 20, Issue 41, p.26431-26442, (2018)

Synthesis and characterization of metals-substituted cobalt ferrite [M Co FeO; (M = Zn, Cu and Mn; x = 0 and 0.5)] nanoparticles as antimicrobial agents and sensors for Anagrelide determination in biological samples., Maksoud, M I. A. Abdel, El-Sayyad Gharieb S., Ashour A H., El-Batal Ahmed I., Abd-Elmonem Mahmmoud S., Hendawy Hassan A. M., Abdel-Khalek E K., Labib Sh, Abdeltwab E, and El-Okr M M. , Mater Sci Eng C Mater Biol Appl, 2018 Nov 01, Volume 92, p.644-656, (2018)