13.05.2018 Views

merged

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

The Effect of Sintering Temperature on Superconductor Properties of<br />

NdBa2Cu3O7-δ<br />

Nurul Husna bt Helmi<br />

Supervisor: Dr. Aima bt Ramli<br />

Bachelor of Applied Science (Electronics and Instrumentation Physics)<br />

School of Ocean Engineering<br />

NdBa2Cu3O7-x superconductor, is a material that can conduct electricity or transport<br />

electrons from one atom to another with no resistance. Neodymium barium copper<br />

oxide (NdBa2Cu3O7-x) is a cluster of crystalline chemical compound and known for<br />

displaying high temperature superconductivity. In this research, the NdBa2Cu3O7-x<br />

samples were prepared by victimization solid state method with different sintering<br />

temperature 860 °C, 880 °C, 900 °C and 920 °C. Thermogravimetry analysis (TGA)<br />

ascertained that above 900 °C, the phase (Nd123) is destroyed due to the oxygen<br />

loss. The phase formation of NdBa2Cu3O7-x were determined by X-ray diffraction<br />

(XRD). As the result, orthorhombic phase are shown for all samples and there is<br />

existing of secondary phase Nd-422. Scanning Electron Microscope (SEM) revealed<br />

that the sizes of pore are larger corresponding to increasing sintering temperature due<br />

to oxidation of oxygen.<br />

172 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2 0 1 9

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!