Title :
Fuzzy evaluation of process parameters when synthesizing nano-size hydroxyapatite using solgel method
Author :
Niu, Zongwei ; Li, Zhiyong ; Li, Li ; Sun, Dianzhu
Author_Institution :
Sch. of Mech. Eng., Shandong Univ. of Technol., Zibo
Abstract :
The process parameters that influence the performance of nano-size hydroxyapatite powder such as purity, granularity, and crystallinity include the mass ratio between Ca(NO3)2-4H2O and (NH4)2HPO4, the PH value of reaction liquid, the temperature of sintering and the time of heat preservation. Orthogonal experiments with different process parameters are designed; experiments were carried out with every process parameter take 4 different values. Membership function of four process parameters factors were established, and influence fuzzy relation matrix of them to the quality of nano-size hydroxyapatite powder was determined. The result of experiment planed in advance can be predicted using fuzzy evaluation which can enhance the quality of the nano-size hydroxyapatite powder.
Keywords :
calcium compounds; nanoparticles; nanotechnology; pH; particle size; sintering; sol-gel processing; (NH4)2HPO4; Ca(NO3)2H2O; Ca10(PO4)3H2O; PH value; fuzzy matrix; heat preservation; nanosize hydroxyapatite powder; sintering; sol-gel method; Assembly; Bones; Crystallization; Humans; Nanobioscience; Ovens; Powders; Process design; Systems engineering and theory; Temperature; fuzzy evaluation; hydroxyapatite; nano-size; process parameter;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2008. NEMS 2008. 3rd IEEE International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-1907-4
Electronic_ISBN :
978-1-4244-1908-1
DOI :
10.1109/NEMS.2008.4484381
