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We have used low temperature organics to achieve orientation of the grains of Ca2/3Cu3Ti4O12 (CCTO) compound to increase the resistivity. During the past fifteen years CCTO has been studied extensively for its performance as a dielectric capacitor. We have synthesized and grown large grains of pure Ca2/3Cu3Ti4O12 and doped compound, and studied the dielectric constant and resistivity. The grains were aligned by using a naphthalene-camphor eutectic. CCTO was mixed in the organic melt and oriented by the directional solidification method. This material has different characteristics than pure processed CCTO material. The effect of solidification conditions and its effect on the morphology and the dielectric constant, resistivity and loss tan delta of pure and doped CCTO are described in this article.
Vishnu Razdan,Abhishek Singh,Brad Arnold,Fow-Sen Choa,Lisa Kelly, andN. B. Singh
"Effect of organic flux on the colossal dielectric constant of CaCu3Ti4O12 (CCTO)", Proc. SPIE 9493, Energy Harvesting and Storage: Materials, Devices, and Applications VI, 949308 (18 May 2015); https://doi.org/10.1117/12.2177694
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Vishnu Razdan, Abhishek Singh, Brad Arnold, Fow-Sen Choa, Lisa Kelly, N. B. Singh, "Effect of organic flux on the colossal dielectric constant of CaCu3Ti4O12 (CCTO)," Proc. SPIE 9493, Energy Harvesting and Storage: Materials, Devices, and Applications VI, 949308 (18 May 2015); https://doi.org/10.1117/12.2177694