PENGARUH PENAMBAHAN CuO TERHADAP KONDUKTIVITAS IONIK, KEKERASAN DAN KETANGGUHAN RETAK CSZ SEBAGAI ELEKTROLIT PADAT

• Main Author: Sholihah, Ila Lailatun (Author)
• Format: Book
• Published: 2015-06-29.
• Subjects: Thesis; NonPeerReviewed
• Online Access: Link Metadata
• Notes: http://repository.upi.edu/18789/1/S_FIS_1100335_Title.pdf; http://repository.upi.edu/18789/1/S_FIS_1100335_Abstract.pdf; http://repository.upi.edu/18789/2/S_FIS_1100335_Table_of_content.pdf; http://repository.upi.edu/18789/2/S_FIS_1100335_Chapter1.pdf; http://repository.upi.edu/18789/3/S_FIS_1100335_Chapter2.pdf; http://repository.upi.edu/18789/5/S_FIS_1100335_Chapter3.pdf; http://repository.upi.edu/18789/4/S_FIS_1100335_Chapter4.pdf; http://repository.upi.edu/18789/6/S_FIS_1100335_Chapter5.pdf; http://repository.upi.edu/18789/2/S_FIS_1100335_Bibliography.pdf; http://repository.upi.edu/18789/2/S_FIS_1100335_Appendix.pdf
• Keywords: QC Physics

Penelitian mengenai pengaruh penambahan CuO terhadap konduktivitas ionik, kekerasan dan ketangguhan retak CSZ sebagai elektrolit padat SOFC telah dilakukan. CSZ didoping dengan CuO dengan konsentrasi 0, 1 dan 2 % berat. Pelet CSZ yang didoping CuO dikompaksi dengan tekanan 4 ton/cm2 dan disinter pada suhu 14750C selama 3 jam. Konduktivitas ionik diukur dengan menggunakan alat LCR meter. Konduktivitas ionik CSZ dengan doping 0, 1 dan 2 % berat CuO adalah 0,063 mS/cm, 0,110 mS/cm dan 0,082 mS/cm. Kekerasan dan ketangguhan retak diukur dengan metode vickers menggunakan alat mesin Zwick. Hasil kekerasan vickers berturut-turut 9,9 GPa, 12,1 GPa dan 10,5 GPa, dan ketangguhan retak berturut-turut 1,61 MPa/m0,5, 1,85 MPa/m0,5 dan 1,54 MPa/m0,5. Analisis struktur kristal dilakukan dengan menggunakan XRD. Hasil analisis menunjukan bahwa keramik yang dibuat berfase kubik FCC. Analisis struktur mikro dengan menggunakan mikroskop optik menunjukan bertambahnya ukuran butir dengan peningkatan 1% berat CuO. Secara keseluruhan penambahan CuO dengan konsentrasi 1% berat dapat memperbaiki sifat listrik dan sifat mekanik CSZ sebagai elektrolit padat. A research about effect of CuO addition on ionic conductivity, hardness and fracture toughness of CSZ as solid electrolyte had been conducted. CSZ was doped with 0, 1 and 2 wt % CuO. Pellets of CuO doped CSZ had been prepared by pressing with pressure of 4 ton/cm2 and sintered at 1475 OC for 3 hours. Ionic conductivity was measured by means of LCR meter. Ionic conductivity values of CSZ with doped 0, 1 and 2 % CuO were 0.063 mS/cm, 0.110 mS/cm, and 0.082 mS/cm. Hardness and fracture toughness were measured by vickers method using a Zwick machine. The measured vickerss hardness were 9.9 GPa, 12.1 GPa and 10.5 GPa and fracture toughness were 1.61 MPa/m0,5, 1.85 MPa/m0,5 and 1.54 MPa/m0,5. Crystal structure analysis was done by using XRD. The analysis result showed that the prepared ceramics have cubic phase of FCC. Microstructure analysis by using an optical microscope showed that grain size increased with the increased of 1 wt % CuO. The addition of CuO at conscentration of 1 wt % can improve the electrical and mechanical properties of CSZ as solid electrolyte.