Digital Special Collection Portal

Effect of zinc doping on electrical properties of CaCu3Ti4O12 produced using conventional and microwave techniques


Anadin, Norzafirah (2018) Effect of zinc doping on electrical properties of CaCu3Ti4O12 produced using conventional and microwave techniques. Final Year Project thesis, Universiti Malaysia Kelantan. (Submitted)


Electroceramic is a part of ceramic, which is advanced material used for electrical properties. Electroceramic become importance in recent development of equipment and machine. The electroceramis compound (CaCu3Ti4O12) CCTO had very attractive due to its high dielectric constant but the dielectric lost is high due to lack of energy efficiency. In order to overcome this problem, doping with other element is one of the famous solutions. The objectives of this study are to improve properties of CCTO using conventional and microwave techniques. Three raw materials which are calcium carbonate (CaCO3), copper oxide (CuO) and titanium oxide (Ti02) were used powders. The raw materials were weighted according to stoichiometric ratios to form pure CCTO. For zinc doped CCTO, zinc concentration of percentage ratio of 1, 3, 5, and 10 mol % were formulated. The mixed powders were ball milled for 24 hours using wet mixing. The mixed powder was calcined by using convensional and microwave technques. For convensional technique the mixed powder calcined at 900°C with soaking time 12 hours whereas microwave technique is mixed powder calcined at 700°C with soaking time 40 minutes. This study was focused in characterization of pure and zinc doped CCTO properties such as surface microstructure and dielectric properties. Phase and microstructure were analysed by using X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The phase formation is tested by XRD, the result for both techniques was obtained that CCTO is not completely reacted due to not enough time. Dielectric properties measurements were done using Material Analyzer 1MHz- 1GHz. The increasing of zinc doping will increase the dielectric constant. The dielectric constant of formation of CCTO using microwave processing is decrease compare to dielectric constant of CCTO formation using furnace technique, due to not enough time to formation of CCTO.

Download File / URL

Full text not available from this repository.

Additional Metadata

Item Type: Undergraduate Final Project Report
Collection Type: Final Year Project
Date: 2018
Call Number: SEB 2018 029
Supervisor: Dr. Muhammad Azwadi bin Sulaiman
Programme: Materials Technology
Institution: Universiti Malaysia Kelantan
Faculty/Centre/Office: Faculty of Bioengineering and Technology
Statistic Details: View Download Statistic

Edit Record (Admin Only)

View Item View Item

The Office of Library and Knowledge Management, Universiti Malaysia Kelantan, 16300 Bachok, Kelantan.
Digital Special Collection (UMK Repository) supports OAI 2.0 with a base URL of