Zeynep TAŞLIÇUKUR ÖZTÜRK, Selin ENGÜRLÜ, Nilgun KUŞKONMAZ

Investigation of the Production of β-Al₂O₃ Solid Electrolyte from Seydişehir α-Al₂O₃

In this study, we report the production of β˝-Al2O3 solid electrolyte by using Seydişehir α-Al2O3. Alumina has to be low grain-sized to ensure α-β phase transformation. Therefore, grain refining process was applied to high grain sized Seydişehir alumina by jetmill grinding. Seydişehir alumina was calcined at 1200 0C for 2 hours. After calcination, calcined Al2O3 and Na2CO3 were mixed during 2 hours in the mill. The samples were pressed and sintered to obtain β˝-Al2O3. β˝-Al2O3 was obtained after sintering at 1550°C for 1 hour. Due to the formation of β˝-Al2O3, it is observed that dielectric properties increased.

Anahtar Kelimeler:

α-Al2O3, Calcination; Sintering; β-Al2O3; Dielectric properties

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