نتایج جستجو برای: سوپرآلیاژ ni span c 902
تعداد نتایج: 1141447 فیلتر نتایج به سال:
Carmen Silvia Kira, Alice Momoyo Sakuma, Nelson da Cruz Gouveia 1 Food Center, Instituto Adolfo Lutz – Av. Dr. Arnaldo, 355, CEP 01246-902, São Paulo, SP, Brazil, 2 Reference Materials Center, Instituto Adolfo Lutz – Av. Dr. Arnaldo, 355, CEP 01246-902, São Paulo, SP, Brazil, 3 Departament of Preventive Medicine, Faculty of Medicine, University of São Paulo Av. Dr. Arnaldo, 455, CEP 01246-903, ...
In this study, microstructural evaluation and mechanical properties of similar TLP bonded of Inconel 600 by using of BNi-2 interlayer were investigated. The bonding tests were carried out at 1050°C and 1100°C for 5-45 min which homogenization treatment was performed on the best of the bonded samples. Results showed that Ni-B eutectic compound was formed in the a-thermally solidification zone (A...
Background & Objective: Concentration of low-density lipoprotein (LDL) is a known risk factor for cardiovascular disease which is r...
The novel dimethyl sulfoxide (DMSO)-coordinated complex [(N,O)Ni(CH(3))(DMSO)] {1-DMSO; (N,O) = kappa(2)-N,O-(2,6-(3,5-(F(3)C)(2)C(6)H(3))(2)C(6)H(3))-N=CH-(3,5-I(2)-2-OC(6)H(2))} was found to be a well-defined, very reactive precursor that enables direct observation of the activation and deactivation of neutral Ni(II) catalysts. Preparative reaction with ethylene afforded the ethyl complex [(N...
In the mol-ecular structure of the title compound, [NiCl2(C7H12N2S)2], the Ni(II) atom has a distorted tetra-hedral geometry, coordinated by two Cl atoms [Ni-Cl= 2.2336 (6) Å] and two thione S atoms [Ni-S= 2.3024 (6) Å]. The angles at the Ni(II) cation, which lies on a twofold rotation axis, are Cl-Ni-Cl = 115.58 (3)° and S-Ni-S = 94.55 (3)°. All other angles at the central Ni(II) atom range fr...
Piston aluminum alloys have different intermetallic phases, such as Cu3Al, Mg2Si ,and AlNi phases. The morphology and the distribution of such phases have important roles on mechanical properties of the piston material. Therefore, in this research, various ageing heat treatments on the mentioned material were done and the microstructural feature and the hardness were studi...
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The reaction of NiBr(2)(EtOH)(4) with a 1:2-3 mixture of FeBr(2)(CO)(4) and Na(SPh) generated a linear trinuclear Fe-Ni-Fe cluster (CO)(3)Fe(mu-SPh)(3)Ni(mu-SPh)(3)Fe(CO)(3), 1, whereas the analogous reaction system FeBr(2)(CO)(4)/Na(S(t)Bu)/NiBr(2)(EtOH)(4) (1:2-3:1) gave rise to a linear tetranuclear Fe-Ni-Ni-Fe cluster [(CO)(3)Fe(mu-S(t)Bu)(3)Ni(mu-Br)](2), 2. By using this tetranuclear clus...
The chemisorption of CO on the (100) surface of Ni has been studied using an Nit, cluster and generalized valence bond (GVB) methods. CO is found to bond perpendicular to the Ni surface with optimized Ni-C and C-O bond distances of 1.94 and 1.15 A, respectively. The cakulated Ni-CO bond strength is 29.7 kcal (experimental values 30-32 kcal). Vibrational frequencies are calculated to be 401 cm-’...
Laser-induced breakdown spectroscopy (LIBS) has been applied for the determination of nutrients in the green house soil samples. We determined appropriate spectral signatures of vital nutrients and calibrated the method to measure the nutrients in a naturally fertilized plot, cultivated with tomato and cucumber plants. From the calibration curves we predicted the concentrations of important nut...
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