Evolution of the neck mean radius r for various temperatures of sintering and durations Sphere mean radius: 62 µm Sintering duration [h] 35 °C SD 38 °C SD 40 °C SD 42 °C SD 2 12,309 2,844 19,4175 3,5675 21,3335 2,3125 29,505 3,757 4 17,15 3,443 21,5735 3,691 29,865 4,2505 37,0245 4,5375 7 19,012 3,1385 22,8515 3,7305 30,592 4,339 37,2825 5,043 11 17,4905 3,0595 24,255 4,3995 31,8645 3,86 39,866 5,169 18 18,071 2,425 27,5615 3,1005 39,494 4,318 44,887 5,462 Sphere mean radius: 33 µm Sintering duration [h] 35 °C SD 38 °C SD 40 °C SD 42 °C SD 2 8,9585 2,022 10,8615 2,322 18,3255 2,4545 15,65 6,538 4 8,9505 2,1805 13,261 2,124 28,868 4,411 7 8,849 1,8235 15,485 1,8595 11 8,95 2,6 14,8765 2,3225 18 10,124 1,7725 16,855 2,595 Sphere mean radius: 125 µm Sintering duration [h] 35 °C SD 38 °C SD 40 °C SD 42 °C SD 2 22,7395 3,79 22,045 5,921 32,1055 6,809 38,889 7,2595 4 24,184 5,693 30,211 6,663 36,738 5,246 41,684 6,547 7 26,443 5,714 32,003 4,3485 38,3195 5,5585 48,329 8,3185 11 29,728 6,4695 30,8035 6,696 42,031 6,945 48,8545 7,547 18 27,553 5,223 36,969 7,9775 45,6535 6,321 65,976 10,418 *SD: Standart deviation