6Wang W M, Liu X C, Gao F, et al. Synthesis of nanocrystalline Ni1Co0.2 Mn1. 8O4 powders for NTC thermistor by a gel auto-combustion process. Ceram. Int. , 2007, 33(3) : 459-462.
7Azadmanjiri J. Preparation of Mn-Zn ferrite nanoparticles from chemical sol-gel combustion method and the magnetic properties after sintering. J. Non-Cryst. Solids, 2007, 353 ( 44/45/46 ):41704173.
8Azadmanjiri J, Salehani H K, Barati M R, et al. Preparation and electromagnetic properties of Ni1-xCuxFe2O4 nanoparticle ferrites by sol-gel auto-combustion method. Mater. Lett. ,, 2007, 61 ( 1 ) : 84-87.
9Pradeep A, Priyadharsini P, Chandrasekaran G. Production of single phase nano size NiFe2O4 particles using sol-gel auto combustion route by optimizing the preparation conditions. Mater. Chem. Phys. , 2008, 112(2) :572-576.
10Azadmanjiri J, Seyyed Ebrahimi S A, Salehani H K. Magnetic properties of nanosize NiFe2O4 particles synthesized by sol-gel auto combustion method. Ceram. Int. , 2007, 33 (8) : 1623-1625.
