Zobrazeno 1 - 10
of 142
pro vyhledávání: '"G.N. Subbanna"'
Publikováno v:
Solid State Communications. 129:479-483
We report a novel, low temperature (450–600 $^oC$) route for the synthesis of highly crystalline and homogeneous nanoparticles of lanthanum calcium manganese oxide $La_{0.67}Ca_{0.33}MnO_3$ (LCMO). The nanocrystallites, with average particle size o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27ef33e7b39bd9347d857114a7b362f5
https://doi.org/10.1016/j.ssc.2003.10.029
https://doi.org/10.1016/j.ssc.2003.10.029
Publikováno v:
Journal of Magnetism and Magnetic Materials. 268:75-88
Nanoparticle composites of spinel (S) and hexaferrite (W or Y phase) in different ratios were prepared by a wetchemical process of gel-to-crystallite conversion. The compositions were selected on the line connecting W–S or Y–S in the $BaO–NiO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08d33d664836ea8366cbbb566e43038e
https://doi.org/10.1016/s0304-8853(03)00476-1
https://doi.org/10.1016/s0304-8853(03)00476-1
Publikováno v:
Journal of Physics and Chemistry of Solids. 64:2337-2349
The effect of anions such as Cl − , SO 4 2− , and HPO 4 2− on the phase stability of FeOOH (α or γ) during precipitation is investigated. Oxidation of Fe(OH) 2 · x H 2 O from FeCl 2 solution with high Cl − concentration ([Cl − ]/[Fe]= R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85dba993e25f1932bdab2ccc6a33fdf4
https://doi.org/10.1016/s0022-3697(03)00270-1
https://doi.org/10.1016/s0022-3697(03)00270-1
Publikováno v:
Journal of Magnetism and Magnetic Materials. 263:253-268
The hexaferrites of different compositions from the $BaO-NiO-Fe_2O_3$ ternary phase diagram were prepared by a wet chemical process of gel-to-crystallite conversion. Herein, the coprecipitated reactive gels of hydrated $nFe(OH)_3\cdotpNi(OH)_2\cdotxH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52ef79f81f4e6f01b86990c19de5556b
https://doi.org/10.1016/s0304-8853(02)01572-x
https://doi.org/10.1016/s0304-8853(02)01572-x
Publikováno v:
Thin Solid Films. 424:56-60
Deposition of thin films of iron oxide on glass has been carried out using a novel precursor, tris(t-butyl-3-oxo-butanoato)iron(III), in a low-pressure metalorganic chemical vapor deposition (MOCVD) system. The new precursor was characterized for its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::652a3f466fa5ede3970c4b6108eee5e1
https://doi.org/10.1016/s0040-6090(02)00903-3
https://doi.org/10.1016/s0040-6090(02)00903-3
Publikováno v:
Journal of Electroceramics. 6:123-134
A novel method for the preparation of nanoparticles of barium hexaferrite is realized by the gel-to-crystallite (G-C) conversion method. Here, gels of Fe(OH)(3). xH(2)O, 70 < x < 110, were reacted with Ba(OH)(2). 8H(2)O in ethanol/water medium at 80-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f42ea54ac0262e2f3a46256a610d1c77
https://doi.org/10.1023/a:1011456700808
https://doi.org/10.1023/a:1011456700808
Autor:
Jagannatha Gopalakrishnan, Kannadka Ramesha, G.N. Subbanna, S.V. Subramanyam, Venkataraman Thangadurai, D. Sutar
Publikováno v:
Materials Research Bulletin. 35:559-565
We report the synthesis and investigation of electrical and magnetic properties of double perovskites of the formula ALaMnBO 6 for A = Ca, Sr, Ba and B = Fe, Ru. Powder X-ray diffraction (XRD) shows formation of cubic/pseudocubic perovskite structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfce257606782d61d47084b0a831a74a
https://doi.org/10.1016/s0025-5408(00)00248-8
https://doi.org/10.1016/s0025-5408(00)00248-8
Publikováno v:
Solid State Communications. 95:629-633
X-ray diffraction patterns of superconducting LnBa2Cu3O7−δ (Ln = Nd, Gd, Dy or Er) compositions (0.3 ≤ δ ≤ 0.4; Tc 45–60K) show a significant change on annealing bulk samples at 473K for 48–60 hrs. The diffraction patterns of the annealed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fe31cdc440a66fdd5242397877740dc
https://doi.org/10.1016/0038-1098(95)00312-6
https://doi.org/10.1016/0038-1098(95)00312-6
Publikováno v:
Chemistry - A European Journal. 1:165-170
Deintercalation of amines from the layered amine adducts of WO3, MoO3 and W1-xMoxO3 has been employed as a soft chemical route to produce unusual metastable structures of the oxides. After the adducts of WO3, MoO3 and W1–xMoxO3 (x = 0.25, 0.5, 0.75
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41ed1a6ed8168cd0529f058c23cf0cd8
https://doi.org/10.1002/chem.19950010305
https://doi.org/10.1002/chem.19950010305
Publikováno v:
Solid State Communications. 94:13-16
Members of the Ba2Zn1−xCdxTa2O9 (0 ≤ x ≤ 1) series have been synthesized by solid state reactions at 1473K. Powder x-ray diffraction studies show a cubic perovskite cell with a ~ 4.1A which increases with increase in x. Electron diffraction stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d55a64e7a9eef23d0894d02d7c38a7af
https://doi.org/10.1016/0038-1098(95)00016-x
https://doi.org/10.1016/0038-1098(95)00016-x