Characterization and properties of BaTi3O3/MgO nanocomposite ceramics

In this research, BaTiO3./xMgO nanocomposite ceramics, where x = 0, 0.3, 0.5, 0.7 and 1.0 vol%, were prepared by a mixedoxide method. The effect of MgO additions on the phase formation, microstructure and dielectric properties of this system was investigated via X-ray diffraction (XRD), scanning ele...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Vittayakorn W.C., Bunjong D., Muanghlua R., Vittayakorn N.
التنسيق: مقال
اللغة:English
منشور في: 2014
الوصول للمادة أونلاين:http://www.scopus.com/inward/record.url?eid=2-s2.0-83455225669&partnerID=40&md5=bbbf38eb1a29c667939ccc77ffa6474f
http://cmuir.cmu.ac.th/handle/6653943832/6391
الوسوم: إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
المؤسسة: Chiang Mai University
اللغة: English
الوصف
الملخص:In this research, BaTiO3./xMgO nanocomposite ceramics, where x = 0, 0.3, 0.5, 0.7 and 1.0 vol%, were prepared by a mixedoxide method. The effect of MgO additions on the phase formation, microstructure and dielectric properties of this system was investigated via X-ray diffraction (XRD), scanning electron microscopy (SEM) and dielectric spectroscopy, respectively. From the results, XRD analysis showed that there is no unwanted phase except BaTiO 3 and MgO observed in these ceramics. Abnormal grain growth was found in pure BaTiO3 ceramic with a 75.32 μm average grain size. After adding MgO nanoparticles into the system, the grain size significantly decreased to 0.55 μm and continuously decreased with increasing MgO content. For the dielectric properties, the pure BT ceramic exhibits a sharp and high dielectric peak whereas a low and broad peak is found in BT/MgO nanocomposite ceramics, which can be explained by the composite structure.