Cov qauv thiab cov khoom ntawm 3D luam tawm ntxeem tau tantalum

Vim lub siab ntom ntom ntawm cov hlau tantalum, thaum siv los ua cov khoom siv kho mob, nws feem ntau nthuav tawm hauv daim ntawv ntawm cov qauv ntxeem tau, uas tsis tsuas yog muab kev ua si tag nrho rau qhov zoo heev biocompatibility ntawm hlau tantalum, tab sis tib lub sij hawm muab ib qho kev ua si tag nrho. natural channel rau cov ntaub so ntswg loj hlob nrog cov nplua nuj pore qauv ntawm cov ntaub ntawv ntxeem tau. Yog li ntawd, lwm qhov tseem ceeb ntawm kev tshawb fawb txog 3D luam ntawv ntxeem tau tantalum yog ntxeem tau tantalum. Txawm li cas los xij, txij li kev txhim kho 3D luam ntawv hlau rau hnub tim, kev tshawb fawb me me tau tshaj tawm ntawm 3D luam tawm cov ntaub ntawv tantalum ntxeem tau. Lub Tsev Kawm Ntawv Qib Siab Leuven, Belgium, paub txog kev npaj cov ntaub ntawv ntxeem tau tantalum nrog cov qauv pore zoo los ntawm kev siv cov hlau kheej kheej tantalum hmoov ua raw cov ntaub ntawv hauv xyoo 2015, thiab ntsuas tag nrho lawv cov khoom siv kho tshuab.

Cov txiaj ntsig ntawm kev ntsuas compressive-strain qhia tau tias lub zog tawm los yog 12.7 MPa s 0.6 MPa, lub toj siab kev nyuaj siab yog 21.8 MPa s 0.9 MPa, compressive elastic modulus yog 1.22 GPa s 0.07 GPa, thiab cheeb tsam toj siab ntawm qhov nkhaus yog du thiab tsis-serrated, uas qhia tau hais tias cov khoom ntxeem tau tantalum npaj los ntawm SLM muaj cov yas zoo heev, thiab cov modulus zoo kawg nkaus phim nrog cov pob txha ntawm tib neeg. Tsis tas li ntawd, qhov compressive qaug zog txwv ntawm ntxeem tau tantalum yog 7.35 MPa (10⁶ zaug), uas qhia tau hais tias muaj kev tiv thaiv siab rau cyclic loading.
Tam sim no, tantalum thiab ntxeem tau tantalum raug suav hais tias yog qhov zoo tshaj plaws biocompatible orthopedic implant cov ntaub ntawv, thiab Tuam Tshoj daim ntawv thov ntawm 3D luam ntawv ntxeem tau tantalum yog nyob rau hauv lub forefront ntawm lub ntiaj teb no.In 2016, nyob rau hauv kev txhawb nqa ntawm lub Key Research thiab Development Program ntawm Ministry of Science thiab Technology, Northwest Nonferrous Metals Research Institute (NWNMRI), ua ke nrog Southwest Tsev Kho Mob, ua tiav lub ntiaj teb thawj rooj plaub ntawm tus kheej cov hmoov e-beam 3D luam porous tantalum cog lub cev npaj thiab ua tiav daim ntawv thov kev kho mob. Tam sim no, Northwest Nonferrous Metals Research Institute thiab nws cov subordinate Xi'an Sailon Metal Materials Co. tau paub txog cov kev pab cuam ntawm tag nrho cov saw hlau ntawm cov hmoov raw cov ntaub ntawv, electron beam tsim cov cuab yeej thiab cov txheej txheem ntawm kev kho mob porous tantalum implants.