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SUPER- K CCTO
tm3133312304
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Super-K CCTO is the newest electroceramic material with unusual dielectric properties ever found. CCTO means a ceramic compound, CaCu3 Ti4 O12 and Super-K was named after its shows a colossal dielectric constant with relative permittivity or K-value up to 12,000 (K-value of dry air is 1 and glass ~5). This permittivity value is much higher if compared to the conventional electroceramic materials such as BaTiO3 ~ 1,000, TiO2 ~ 100, SiO2 ~ 40 and remains relatively stable over a wide range temperature of 100 to 600 K(-173 to 327oC).
High-K materials are useful for capacitor (component which can store energy) and memory device (DRAM). The higher K-value, the more charge/energy can store, and we can make the smaller electronic devices by using Super ??? K CCTO. In microwave application, Super - K CCTO is very promising as a dielectric resonator to produce a smaller size of oscillator system for low microwave frequency ranges.

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School of Material & Mineral Resource Engineering, Engineering Campus, Universiti Sains Malaysia
14300 Nibong Tebal
Pulau Pinang
Malaysia

Full Name [1]
Assoc Prof Dr Sabar Derita Hutagalung
Email [1]
mrsabar@eng.usm.my