P. Puspitasari, V. Yuwanda, Sukarni, J.W. Dika
This study proposed to investigate the synthesis and characterization of eggshell nanopowders. The phase and morphological characterization of eggshell nanopowders for reducing their grain size from micro to nano involved ball milling with the variations of duration (1, 5, and 10 hours) and sintering temperature at 1100 C for 1 hour. XRD test presented the phase characterization of eggshell nanopowder which ball-milled for 5 hours, obtained the smallesr crystalite size at 46.37nm. The one subjected to 1-hour sintering and 1-hour ball milling had the highest degree of crystallinity. Based on the SEM analysis, the eggshell nanopowders experienced morphological changes in grain size and shape from chunks, triangular grains, and irregular grains in micro size to Nano-sized with spherical grains. The EDX test presented the highest and the lowest compound in eggshell which non-sintered and ball-milled for 5 hours, the result showed that C compound was the lowest level, and C and O level were the highest level9f. © Published under licence by IOP Publishing Ltd.
Department of Mechanical Engineering, Universitas Negeri Malang, Jl. Semarang No 5, Malang, 65145, Indonesia; Center of Nano Research and Advanced Materials, Universitas Negeri Malang, Jl. Semarang No 5, Malang, 65145, Indonesia
