INFLUENCE OF DOUBLE CALCINATION-MILLING ROUTE ON THE STRUCTURAL AND MICROSTRUCTURAL PROPERTIES OF LEAD-FREE K0.5NA0.5NBO3 (KNN) CERAMICS. J. Teknol. [Internet]. 2023 Apr. 19 [cited 2024 Nov. 22];85(3):75-81. Available from: https://journals.utm.my/jurnalteknologi/article/view/19202