Microstructure and mechanical property of synthesized hydroxyapatite prepared by colloidal process.

Yasuda HY; Mahara S; Umakoshi Y; Imazato S; Ebisu S

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Microstructure and mechanical property of synthesized hydroxyapatite prepared by colloidal process.

机译：胶体法合成羟基磷灰石的微观结构和力学性能

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Synthesized hydroxyapatite (HAp) was prepared by the colloidal process. Mixed slurry composed of 25 vol% HAp powder and 75 vol% aqueous solution containing a small amount of polycarboxylic acid ammonium as dispersant was produced. Viscosity of the HAp slurry, microstructure and mechanical property of the synthesized HAp prepared by this process depends on the quantity of dispersant. A mainly uniform microstructure was obtained in both green and sintered HAp with 2 wt% dispersant by preventing the agglomeration of powder in the slurry. A homogeneous microstructure was maintained even after annealing at temperatures between 1200 and 1400 degrees C. Maximum bending strength of 88.5 MPa was also obtained at an optimum dispersant concentration.

机译：通过胶体法制备了合成的羟基磷灰石（HAp）。制备由25体积％的HAp粉末和75体积％的含有少量聚羧酸铵作为分散剂的水溶液组成的混合浆料。通过此方法制备的HAp浆料的粘度，合成HAp的微观结构和机械性能取决于分散剂的量。通过防止浆料中粉末的团聚，在具有2 wt％分散剂的生坯和烧结HAp中均获得了基本均匀的微观结构。即使在1200至1400摄氏度之间的温度下退火后，也可以保持均匀的微观结构。在最佳分散剂浓度下，也可获得88.5 MPa的最大弯曲强度。

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来源
《Biomaterials》 |2000年第20期|共5页
作者
Yasuda HY; Mahara S; Umakoshi Y; Imazato S; Ebisu S;
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正文语种 eng
中图分类医用一般科学;
关键词
Colloids; Hydroxyapatites; 胶体类; 羟基磷灰石类;

机译：Colloids;Hydroxyapatites;胶体类;羟基磷灰石类;

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1. Microstructure and mechanical property of synthesized hydroxyapatite prepared by colloidal process. [J] . Yasuda HY, Mahara S, Umakoshi Y, Biomaterials . 2000,第20期

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Microstructure and mechanical property of synthesized hydroxyapatite prepared by colloidal process.

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