Synthesis and statistical analysis of changing size of nano-structured PbO2 during mechanical milling using Taguchi methodology
محل انتشار: فصلنامه علوم و فناوری ذرات، دوره: 2، شماره: 1
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 383
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شناسه ملی سند علمی:
JR_JPST-2-1_006
تاریخ نمایه سازی: 26 فروردین 1397
چکیده مقاله:
The research investigates synthesized nano-structured PbO2 using ball milling. The structure and morphology of the samples were determined in the process of milling by means of XRD and SEM. The size of particles was estimated through DLS analysis. The TEM image of the synthesized powder verifies the achievement of nano dimensions. Design and analyses of the results using Taguchi methodology reveal that the size of synthesized nano-structured PbO2 decreases as ball to powder ratio (BPR) increases while the average size of the particles increases as mechanical milling speed increases from 200 to 250 rpm. Considering the results of TEM, the particle size of the synthesized nano-structured PbO2 by means of mechanical milling was estimated to be 50 nanometers. In addition, the even distribution and spherical morphology of the synthesized powder by this method is crystal clear in SEM images. Additionally, the result of the statistical analysis of particle size based on the effective parameters by means of Minitab software showed that BPR parameter had the greatest impact on the size of particles; BPR increase improved the objective parameter as compared with other parameters under study. According to the results obtained by Minitab software and considering the little influence of time on particle size decrease and in order to minimize the costs of synthesis, it is suggested the synthesis process be done in two hours and the BPR parameters be increased so as to decrease the size of particles.
کلیدواژه ها:
نویسندگان
Maryam Omidvar
Department of Chemical Engineering, Quchan Branch, Islamic Azad University, Quchan, Iran
Esmaeil Koohestanian
Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, Iran
Omid Ramezani Azghandi
Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran