• Sukmarani, Galuh
• Muhammad, Edela Uswah Dien
• Widodo, Valleta Jovanka
• Amalia, Diva Calista
• Rochman, Nurul Taufiqu
• Aryanto, Didik
• Noviyanto, Alfian
• Fauzi, Fiqhi
• Habieb, Alvin Muhammad
• Kusumaningrum, Retno

Abstract

<jats:title>Abstract</jats:title><jats:p>Single-phase calcium titanate (CaTiO<jats:sub>3</jats:sub>) was successfully synthesized by mechanical milling and the solid-state reaction of CaCO<jats:sub>3</jats:sub> and TiO<jats:sub>2</jats:sub>. The speed of high energy ball milling was 700 rpm with the ball and jar were made from stainless steel. The milling time and ball to powder ratio was 10 h and 50 h, respectively. After milling for 10 h, the mixed powder of CaCO<jats:sub>3</jats:sub> and TiO<jats:sub>2</jats:sub> experienced heavy milling, which indicated by the average particle size before and after milling was &gt; 1 µm and 85.56 ± 35.62 nm, respectively. Furthermore, the XRD pattern of milled powder revealed the disappearance of CaCO<jats:sub>3</jats:sub> peaks and a considerable reduction of TiO<jats:sub>2</jats:sub> peaks after milling for 10 h. Moreover, the presence of CaTiO<jats:sub>3</jats:sub> peaks in the milled powder was noticeably detected in the XRD pattern, showing the mechanical alloying of CaCO<jats:sub>3</jats:sub> and TiO<jats:sub>2</jats:sub> was occurred. The milled powder was calcined at 800, 900 and 1000°C for 2 h. The results showed the formation of a single phase of CaTiO<jats:sub>3</jats:sub> after calcination at any temperatures. However, the samples indicated the presence of Fe<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>, which from the milling media. The presence of impurities after milling is inevitable due to friction between ball and jar. Further study is needed to obtain the optimum condition of mechanical milling to minimize the contamination.</jats:p>

Topics

• impedance spectroscopy
• stainless steel
• phase
• x-ray diffraction
• milling
• Calcium
• ball milling
• ball milling