Zobrazeno 1 - 10
of 227
pro vyhledávání: '"H. Salamati"'
Publikováno v:
Journal of Advanced Materials in Engineering, Vol 34, Iss 3, Pp 29-38 (2015)
In this investigation, Ni47Mn40Sn13 ferromagnetic shape memory alloy was prepared by mechanical alloying. The metal powders were ball milled in argon atmosphere for 20 hours. X-ray diffraction pattern confirmed formation of crystalline structure of H
Externí odkaz:
https://doaj.org/article/b9075a5d14674891afd40046212d8f16
Publikováno v:
Iranian Journal of Physics Research, Vol 8, Iss 4, Pp 267-273 (2008)
In this paper, two La0/8sr0/2mno3 samples, isotropic (press without magnetic field) and anisotropic (press with magnetic field) have been prepared. Then we have investigated structural, magnetic and magnetotransport properties of these samples using
Externí odkaz:
https://doaj.org/article/a1a57346b7d7462989dd107f5309ac19
Publikováno v:
Iranian Journal of Physics Research, Vol 8, Iss 2, Pp 79-98 (2008)
In this paper after introduction of manganites, we have studied the effect of particle size and doping on structural, magnetic and magnetoresistance of LSMO manganite samples. The magnetoresistance measurements show that, by decreasing the particle s
Externí odkaz:
https://doaj.org/article/4203dc7dd6ea4296a7e3cde381f8266a
Publikováno v:
Iranian Journal of Physics Research, Vol 6, Iss 3, Pp 169-176 (2006)
We have studied the effect of precursor powder size on the microstructure and intergranular behavior of polycrystalline Bi2223 superconductors using the XRD, SEM, electrical resistivity and AC susceptibility techniques. Polycrystalline Bi2223 superco
Externí odkaz:
https://doaj.org/article/2cd251786784491d8762374fa6425fa3
Publikováno v:
Iranian Journal of Physics Research, Vol 6, Iss 1, Pp 1-7 (2006)
A systematic study of the intergranular properties of (Bi,Pb)2 Sr2 Ca2 Cu3 Oy (Bi2223) polycrystalline samples has been done using the electrical resistivity and AC susceptibility techniques. In this study, we have prepared a series of Bi2223 samples
Externí odkaz:
https://doaj.org/article/3ebc1336011a4c58b95e4418eeec0054
Autor:
H. Salamati, M. Eshraghi
Publikováno v:
Iranian Journal of Physics Research, Vol 4, Iss 3, Pp 309-315 (2004)
(YGdSm)123 sample with nominal composition (Y0.33 Gd0.33 Sm0.33 )Ba 2 Cu 3 O X ,also YGdEu1 and YGdEu2 samples with nominal composition (Y0.33 Gd0.33 Eu0.33 )Ba2 Cu3 OX were prepared at different oxygenation conditions. All the samples were analysed
Externí odkaz:
https://doaj.org/article/6e08158d66bc49f986b9b66dd4f91e7b
Autor:
H. Salamati, P. Kameli
Publikováno v:
Iranian Journal of Physics Research, Vol 4, Iss 2, Pp 201-208 (2004)
The temperature dependence of ac susceptibility of (Bi-Pb)2223 polycrystalline samples was measured as a function of frequency and ac field amplitude. Analysis of the temperature dependence of the AC susceptibility near the transition temperature (Tc
Externí odkaz:
https://doaj.org/article/7f85b5ddd1ab465fa5b8fbfb538c74b6
Publikováno v:
Iranian Journal of Physics Research, Vol 4, Iss 1, Pp 65-74 (2003)
Magnetostriction and low field ac-susceptibility of polycrystalline Gd1-xPrxCo5 (x = 0, 0.1 and 0.5) alloys are measured in temperature region of 77-300 K. XRD patterns show that our samples are single phase. For x = 0 (GdCo5) there are no anomaly in
Externí odkaz:
https://doaj.org/article/b2f63fd49d154cbdaad662b9871a0b9f
Autor:
H. Salamati, M. Kamkar
Publikováno v:
Iranian Journal of Physics Research, Vol 1, Iss 4, Pp 222-229 (1998)
In a systematic approach, we have investigated the effect of the presence of Pb and Sb in the Bi site in a BSCCO (2223 phase) superconductor. There are some contradictory reports in substitution of Sb in the Bi site. Some researchers report an increa
Externí odkaz:
https://doaj.org/article/2778f780d13e464a954ca43343cbb03d
Publikováno v:
Iranian Journal of Physics Research, Vol 7, Iss 4, Pp 242-242 (2007)
The effect of particle size and the heat treatment on precursor powder and subsequent phase formation of silver tube Bi-2223 wire has been studied. First, we have prepared a series of Bi1.66Pb0.34Sr2Ca2Cu3Oy samples with different sintering temperatu
Externí odkaz:
https://doaj.org/article/d9bd46becad3445c924fd8a7048554c2