Effects of heat treatment on structural evolution and morphology of BaTi5O11 powder synthesized by the sol-gel method
BaTi5O11 powder was successfully prepared and characterized by the sol-gel method. The mechanisms of BaTi5O 11 formation were studied by the fourier transform infrared spectroscopy (FTIR). The IR absorption peaks confirm the existence of a substitution reaction with the chelating reagent correspondi...
محفوظ في:
| المؤلفون الرئيسيون: | , |
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| التنسيق: | مقال |
| اللغة: | English |
| منشور في: |
2014
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| الوصول للمادة أونلاين: | http://www.scopus.com/inward/record.url?eid=2-s2.0-2042478031&partnerID=40&md5=683661cae15ee04f189f0213f802def3 http://cmuir.cmu.ac.th/handle/6653943832/7134 |
| الوسوم: |
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| الملخص: | BaTi5O11 powder was successfully prepared and characterized by the sol-gel method. The mechanisms of BaTi5O 11 formation were studied by the fourier transform infrared spectroscopy (FTIR). The IR absorption peaks confirm the existence of a substitution reaction with the chelating reagent corresponding to different modes of vibration characteristic of the acetate group. The X-ray diffraction (XRD) results showed that the formation of single-phase monoclinic BaTi 5O11 began at 700 °C and were stable up to 1100 °C in air. The particle sizes observed from scanning electron microscopy (SEM) are about 100nm for a calcination temperature at 700 °C and 600nm at 1100 °C. © 2003 Elsevier B.V. All rights reserved. |
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