Multilayered biological composite material and preparation method thereof
A composite material and biological technology, applied in medical science, prosthesis, etc., can solve problems such as large differences in thermal expansion coefficients, affecting interface bonding, etc., to achieve high density, maintain biological activity, and improve tissue and performance.
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[0022] Example 1
[0023] (1) Ti, Nb, Zr with a purity of 99.5%, 99.95% and 99% and an average particle size of 45μm are weighed on the titanium alloy matrix according to the mass percentage (wt%) of Ti60%, Nb 34%, and Zr 6.0%. Metal powder; the intermediate layer is weighed according to the mass percentage (wt%) of Ti35%, Nb 34%, Zr 6.0%, HA25%, and the purity is 99.5%, 99.95% and 99%, and the average particle size is 45μm Ti, Nb, Zr The mass of metal powder and hydroxyapatite powder with a purity of 97% and an average particle size of 100 nm is 3.4 g; the surface layer of the bioceramic has a purity of 97% and a particle size of 100 nm and weighs 4 g of HA powder.
[0024] (2) Weigh the titanium alloy base powder and the metal powder of the intermediate layer in step (1) and put them into a ball mill tank, seal the vacuum with alcohol to 20Pa, and the ball-to-battery ratio is 4:1; the titanium alloy base powder passes through the machine After 12h of alloying ball milling, it wa...
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[0030] Example 2
[0031] (1) Ti and Nb with a purity of 99.5%, 99.95% and 99% and an average particle size of 25μm are respectively weighed according to the mass percentages (wt%) of Ti73%, Nb 25%, and Zr 2% in the titanium alloy matrix. , Zr metal powder; the intermediate layer is weighed according to the mass percentage (wt%) of Ti39%, Nb 25%, Zr 6.0%, HA30%, respectively, with a purity of 99.5%, 99.95% and 99%, and an average particle size of 25μm. Nb, Zr metal powder and hydroxyapatite powder with a purity of 97% and an average particle size of 10μm have a mass of 1.6g; the surface layer of the bioceramics has a purity of 97% and a particle size of 10μm to weigh 2g of HA powder.
[0032] (2) Weigh the titanium alloy base powder and the metal powder of the intermediate layer in step (1) and put them into a ball mill tank, seal the vacuum with alcohol to 30Pa, the ball-to-battery ratio is 3:1, and the titanium alloy base powder passes through the machine After alloying ball mil...
Example Embodiment
[0034] Example 3
[0035] (1) Ti, Nb with a purity of 99.5%, 99.95% and 99% and an average particle size of 30μm are respectively weighed according to the mass percentages (wt%) of Ti65%, Nb 30% and Zr 5% in the titanium alloy matrix , Zr metal powder; the intermediate layer is weighed according to the mass percentage (wt%) of Ti38%, Nb 30%, Zr 5%, and HA27% respectively with purity of 99.5%, 99.95% and 99%, and Ti with an average particle size of 30μm, Nb, Zr metal powder and hydroxyapatite powder with a purity of 97% and an average particle size of 20nm have a mass of 6.6g; the surface layer of the bioceramic has a purity of 97% and a particle size of 20nm to weigh 8g of HA powder.
[0036] (2) Weigh the titanium alloy base powder and the metal powder of the intermediate layer in step (1) and put them into a ball mill tank, seal the vacuum with alcohol to 25Pa, the ball-to-battery ratio is 4:1, and the titanium alloy base powder passes through the machine After alloying ball mil...
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