http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Sina Esfandiarpour,Mohammad Reza Ehsani,Parisa Nazemi Ashani,Mohammad Hossein Enayati 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.11
Nano CuO-Fe2O3/TiO2 adsorbents were made with different compositions of metal oxides using precipitation- desorption method. The adsorbents were applied for adsorption of SO2 at high concentrations ranging from 10,000 to 30,000 ppm and temperatures between 523 and 627 K. Adsorption experiments were applied for adsorbents in a laboratory fixed bed adsorption column. The adsorption capacity was measured by calculating the area under the adsorption curve using the integral method. The results showed that temperature is the most affecting factor on the adsorption capacity. The highest adsorption capacity was obtained by using 17, 8 and 75 wt% of CuO, Fe2O3 and nano TiO2, respectively. Characteristics of the best sorbent were determined by using Fe-SEM, XRD and nitrogen adsorption- desorption analyses.
Alireza Razazzadeh,Masoud Atapour,Mohammad Hossein Enayati 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.7
High entropy alloys (HEAs) have received tremendous attention in diferent applications because of their excellent corrosion resistance and superior mechanical properties. In the present work, a novel TiNbMoMnFe high entropy alloy systemwas synthesized and deposited on AISI 316L by DC magnetron sputtering system. The microstructure of the resulting thinflm was evaluated by grazing incidence X-ray difraction and feld emission electron microscope. It was found that the thinflm microstructure is composed of a crystalline solid solution (grain size of 76 nm) and an amorphous phase. The electrochemical investigations in Ringer’s solution revealed that a thin flm of 670 nm thick high entropy alloy has a low corrosioncurrent density of 0.024 μA cm−2, approximately 30% lower than that of the uncoated 316L. Meanwhile, the HEA thin flmshowed the highest pitting corrosion resistance and stability of the passive flm. The wettability examinations exhibited thatthe coated sample has a high contact angle of 90° in contrast to 60° for the uncoated ones. In summary, the TiNbMoMnFehigh entropy alloy thin flm shows great potential for use in biomaterial applications.