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Preparation method of silicon-doped alpha-tricalcium phosphate ceramic
The invention discloses a preparation method of silicon-doped alpha-tricalcium phosphate ceramic. The preparation method comprises the following steps: (1) mixing Ca(NO3)2.4H2O, (NH4)3PO4.3H2O and Si(OCH2CH3)4 of different amounts at a certain temperature according to a molar ratio Ca/(P+Si)=1.67 to obtain precursor nano silicon-doped hydroxyapatite powder; and (2) sintering the precursor nano silicon-doped hydroxyapatite powder in a muffle at 900-1,200 DEG C according to a heating rate of 5-10 DEG C/min, preserving heat for 3-10h, and cooling to normal temperature at a cooling rate of 5-10 DEG C/min to obtain ceramic powder. Compared with the prior art, the method disclosed by the invention can be used for preparing Si-alpha-TCP ceramic powder without beta-TCP at a relatively low temperature, and the content of Si-alpha-TCP can be controlled by controlling the silicon doping amount and the precursor synthesis temperature.
Preparation method of silicon-doped alpha-tricalcium phosphate ceramic
The invention discloses a preparation method of silicon-doped alpha-tricalcium phosphate ceramic. The preparation method comprises the following steps: (1) mixing Ca(NO3)2.4H2O, (NH4)3PO4.3H2O and Si(OCH2CH3)4 of different amounts at a certain temperature according to a molar ratio Ca/(P+Si)=1.67 to obtain precursor nano silicon-doped hydroxyapatite powder; and (2) sintering the precursor nano silicon-doped hydroxyapatite powder in a muffle at 900-1,200 DEG C according to a heating rate of 5-10 DEG C/min, preserving heat for 3-10h, and cooling to normal temperature at a cooling rate of 5-10 DEG C/min to obtain ceramic powder. Compared with the prior art, the method disclosed by the invention can be used for preparing Si-alpha-TCP ceramic powder without beta-TCP at a relatively low temperature, and the content of Si-alpha-TCP can be controlled by controlling the silicon doping amount and the precursor synthesis temperature.
Preparation method of silicon-doped alpha-tricalcium phosphate ceramic
DENG CHUNLIN (Autor:in) / DONG GANG (Autor:in) / ZHENG YANXIA (Autor:in) / WANG YINGJUN (Autor:in)
29.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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