01634nas a2200229   4500008004100000022001400041245007600055210006900131260000800200300001200208490000700220520091200227653001201139653002401151653002101175653001001196653001901206100002301225700002601248700002201274856010801296       2021                        eng d  a1949-307X00aMagnetic and magnetoelastic properties of Ni-substituted cobalt ferrite0 aMagnetic and magnetoelastic properties of Nisubstituted cobalt f  cJAN  a25042050 v123 aIn this letter, magnetic and magnetostriction studies were performed on spinel ferrite Co1-xNixFe2O4 (CNF series) with 0.0 < x < 0.5. All the samples were synthesized by the conventional ceramic method and confirmed to be forming pure spinel phase. The unit cell parameter showed gradual decrease with increasing Ni content. A linear decrease in saturation magnetization (M-s) and coercivity (H-c) was observed with increasing Ni substitution, which could be attributed to reduced magneto-crystalline anisotropy. The room temperature magnetostriction studies revealed a slow decrease in maximum magnetostriction, and interestingly, for 20% reduction of cobalt concentration, i.e., for x = 0.2, a magnetostrictive strain of -164 ppm and substantially high stress sensitivity of -56 x 10(-6) A(-1) m were observed, making Co0.8Ni0.2Fe2O4 suitable for application as a magnetostrictive stress-sensing material.10aFerrite10aMagnetism in solids10aMagnetostriction10aoxide10astress sensing1 aBhame, Shekhar, D.1 aShirolkar, Mandar, M.1 aJoy, Pattayil, A.  uhttps://library.ncl.res.in/content/magnetic-and-magnetoelastic-properties-ni-substituted-cobalt-ferrite02016nas a2200241   4500008004100000022001400041245007600055210006900131260000800200300001100208490000700219520127000226653001201496653001901508653002101527653001001548653001901558100001901577700002201596700002601618700002201644856010801666       2022                        eng d  a0019-452200aMagnetostriction studies on transition metal substituted cobalt ferrite0 aMagnetostriction studies on transition metal substituted cobalt   cAUG  a1005990 v993 a<p>
	Structural, magnetic and microstructural properties of transition metal (TM) substituted cobalt ferrite Co0.9TM0.1Fe2O4 (where TM = Ti, Cr, Mn, Ni and Cu and Zn) were investigated. The present study shows marked dependence of the magnetostriction on the concentration of the substituted transition metal ions for Cobalt in CoFe2O4. The magnetic characteristics of the prepared compositions such as coercivity, anisotropy constant and saturation magnetization changed significantly on transition metal substitution. The present study shows the way to tune the anisotropy of cobalt ferrite by effective substitution of other transition metal ions for Co which subsequently affects the stress sensing performance by changing the slope of the magnetostriction curve. Apart from the magnetic properties the microstructure can also be effectively modified by substitution of other transition metal ions. Only 10% substitution of cobalt showed drastic influence on magnetostriction and slope of magnetostriction curve. The composition with 10% nickel Co0.9Ni0.1Fe2O4 exhibited maximum slope for the magnetostriction curve of -53.7 ppm/Oe, along with reasonably high magnitude of strain of 186 ppm making it a suitable for exploring stress sensing applications.</p>
10aFerrite10aMagnetoelastic10aMagnetostriction10aoxide10astress sensing1 aBhame, Shekhar1 aBhapkar, Abhishek1 aShirolkar, Mandar, M.1 aJoy, Pattayil, A.  uhttps://library.ncl.res.in/content/magnetostriction-studies-transition-metal-substituted-cobalt-ferrite