کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8917110 | 1642740 | 2017 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and phase transition of Mg-doped on Mn-site in La0.7Sr0.3MnO3 bulk/nanostructured perovskite characterised through online ultrasonic technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural and phase transition of Mg-doped on Mn-site in La0.7Sr0.3MnO3 bulk/nanostructured perovskite characterised through online ultrasonic technique Structural and phase transition of Mg-doped on Mn-site in La0.7Sr0.3MnO3 bulk/nanostructured perovskite characterised through online ultrasonic technique](/preview/png/8917110.png)
چکیده انگلیسی
Bulk and nanoshaped perovskite manganite materials were blended to form samples of La0.7Sr0.3Mg1âxMnxO3 (LSMMO) with x = 0.05, 0.075, and 0.100 employing solid state and sonochemical methods, respectively. The well-formed LSMMO component was characterized by comprehensive characterization techniques and rhombohedral structure was observed. The mean size of the bulk and nano LSMMO manganite perovskites ranges between 260-850 nm and 23-86 nm, respectively. The structural and phase transition of the manganite perovskites are explored by on-line ultrasonic velocity and attenuation measurements between 300 and 400 K. A deliberate change in the ultrasonic velocity, attenuation and elastic moduli shows an abnormal behavior with temperature in perovskites and was associated with the occurrence of ferromagnetic-paramagnetic (FM-PM) transition temperature (TC). In addition, the shifts in TC magnitude and width by increase in x are used to study the etiquette of TC and the change in the nanostructure of the bulk perovskites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: South African Journal of Chemical Engineering - Volume 23, June 2017, Pages 50-61
Journal: South African Journal of Chemical Engineering - Volume 23, June 2017, Pages 50-61
نویسندگان
Praveenkumar Somasundaram, Sakthipandi Kathiresan, Sridharpanday Mathu, Selvam Mohanraj, Karthik Arumugam, Surendhiran Srinivasan, Palanivelu Nallaiyan, Rajendran Venkatachalam, Rajkumar Gurusamy,