Fadli, AhmadKomalasariAlfarisi, Cory Dian2014-05-212014-05-212014-05-21978-602-18936-0-9wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/6270Present paper reports the influence of yolk addition on physical properties of porous aluminahydroxyapatite composites prepared using protein foaming-consolidation method. Alumina and hydroxyapatite (HA) powders were mixed with yolk at an adjusted mass ratio to make slurries. The slurries were cast into molds and the dried for foaming- consolidation process. The dried bodies were burned at 600ºC for 1 hour, followed by sintering at temperature of 1550ºC for 2 hours. The addition of yolk into the slurry shifted the rheological properties from shear thinning behavior to a Newtonian fluid and resulted in bigger foaming capacity. The porous alumina-HA composites with shrinkages in the range of 43.3 vol.% – 58.4 vol.% were obtained. The shrinkage of bodies increased with increasing concentration of yolk. The compressive strength was 7.5 MPa at 44.6% porosity 2.6 MPa at 57% porosityenaluminahydroxyapatitecompositesprotein foaming-consolidationUR-Proceedings