نتایج جستجو برای: multiple heating rates
تعداد نتایج: 1211530 فیلتر نتایج به سال:
in this research, the kinetics of carbothermic reduction of molybdenite in the presence of sodium carbonate was studied. For this purpose, mixed powder of molybdenite, graphite, and sodium carbonate with 1:4:2 mole ratio was investigated using simultaneous thermal analysis (STA) at the heating rates of 10, 15 and 20 0C /min. The results of thermal analysis were evaluated through Friedman, Kissi...
We laser-cooled up to 106 9Be+ ions to ∼1 mK in a Penning-Malmberg trap and measured the ion temperature as a function of time after turning off the cooling laser. We observed a rapid heating of the ions when their temperature in a direction parallel to the magnetic field increased above 10 mK and show that this is due to the equilibration of a warm (few kelvins) impurity-ion cyclotron motion w...
Heating rates generated by superparamagnetic particles deteriorate quickly with particle polydispersity. We prepared highly uniform, monodisperse, single-crystal magnetite nanoparticles of tailorable size via organometallic decomposition. As-synthesized nanocrystals were coated with phospholipids to form biocompatible magnetoliposomes. Modeling of AC-magnetic field parameters indicates that 11 ...
The crystallization of undercooled Pd43Ni10Cu27P20 melts is studied under isothermal conditions and at constant heating and cooling rates. Investigations are carried out by fluxing the melt with B2O3 and without any fluxing material. The isothermal experiments allow us to determine the complete time–temperature-transformation diagram with a minimum crystallization time of about 200 s for the fl...
The ablative reactor may be employed to enable fast pyrolysis produce bio-oil from relatively large-sized biomass samples. Ablation mainly involves direct compressive force and conductive heat transfer between a hot surface the materials. Temperature evolution heating rates are important operating factors in thermal conversion process. In this work, experimental analytical investigations were c...
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