Hydroxyapatite Whisker Effect on Strength of Calcium Phosphate Bone Cement

• DOI: 10.4028/www.scientific.net/amr.534.30
• Publication Date: 2012-06-14T11:45:57Z
• Authors: Ping Zhao; Shuai Zhao; Tai Rong Zhao; Xue Hua Ren; Feng Wang; Xiu Na Chen
• Keywords: Agglomerate; Monocrystalline whisker

Hydroxyapatite whisker was the reinforcement phase to prepare whisker/calcium phosphate cement composites, which obtained by homogeneous precipitation method, with 2.5~15 microns in length, 2~30 length/diameter ratio. Mechanical properties and microstructure of composites were tested. With increase hydroxyapatite addition, strength reduces after first rise. When is added 4%(wt), composite achieves maximum strength. SEM method used observe fracture microstructures materials. As a result, dispersion degree HA affects material. Too much whiskers can form agglomerates, weaken