Yusuf Wibisono, Ni Luh Bella Dwijaksara, Wahyu Bambang Widayatno, Agus Sukarto Wismogroho, Muhamad Ikhlasul Amal, Nurul Taufiqu Rochman, Toshiyuki Nishimura, Alfian Noviyanto
Hydroxyapatites (HAps) were synthesized using the powdered waste of fishery products, i.e., fish scales and crab shells, as starting materials. HAp was synthesized by a wet-chemistry method followed by calcination at 600 and 800°C. Calcined crabshell powder revealed a single HAp phase and fine powder, while calcined fish-scale powder showed a ß-TCP secondary phase, even at the higher calcination temperature. Dense HAp pellets were obtained from the crab-shell powder by spark plasma sintering at 1000°C for 10 min under applied pressures of 40 and 80 MPa in a vacuum state, giving sample densities of 2.93 and 3.06 g/cm3, respectively. The estimated grain size of HAp was 448 ± 96 and 283 ± 59 nm for applied pressures of 40 and 80 MPa, respectively. In contrast, the HAp obtained using the pressureless sintering technique showed excessive grain growth without further densification. © 2018 Ano Asymmetry.All right reserved.
Department of Bioprocess Engineering, Brawijaya University, Jl. Veteran, Malang, 65145, Indonesia; MILI Water Research Institute, PO BOX 301 ML, Malang, 65101, Indonesia; Graduate School of Biomedical Engineering, Airlangga University, Jl. Airlangga 4-6, Surabaya, 60286, Indonesia; Research Center for Physics, Indonesian Institute of Sciences, PUSPIPTEK Tangerang Selatan, Banten, 15314, Indonesia; Research Center for Metallurgy and Materials, Indonesian Institute of Sciences, PUSPIPTEK Tangerang Selatan, Banten, 15314, Indonesia; National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Mechanical Engineering, Mercu Buana University, Jl. Meruya Selatan, Kebun Jeruk, Jakarta Barat, 11650, Indonesia; Nano Center Indonesia, Jl. PUSPIPTEK Tangerang Selatan, Banten, 15314, Indonesia
