Synthesis of MgO-ZrO2 by Co-Precipitation Method and Study Its Structure and Characteristics

Abstract

The ceystalline phase of magnisum zirconate (MgZrO₃) white colored was obtained by co-precepitation method in an alkali solution. The zirconium chloride (ZrCl₄), magnesium chloride (MgCl₂.6H₂O) and the alkaline solution of sodium hydroxide (NaOH) were used as starting materials. The solution of starting materials were preparated in different concentration. The precipitation of two solution was accomplished at the same time. Then the products were filtred, dried and burned at different temperatures to obtain required crystals. After that, the samples studied by x-ray powder diffraction method and thermal differential analysis (DTA). This study appears that adding enough amount of magnesium oxide keep the crystal type of zirconium oxide with tetragonal type and the magnesium zirconate with cubic crystal type can synthesized in  temperature (800- 1000)°C.

Key words: co-precepitation, magnisum  zirconate, MgZrO₃.