[논문]Fabrication of Hydroxyapatite Ceramics to Mimic the Natural Bone Structure

Moon, Dae-Hee; Ryu, Su-Chak

doi:10.4191/kcers.2011.48.5.390

[국내논문] Fabrication of Hydroxyapatite Ceramics to Mimic the Natural Bone Structure 원문보기

한국세라믹학회지 = Journal of the Korean Ceramic Society, v.48 no.5, 2011년, pp.390 - 395

Moon, Dae-Hee (Department of Nanomedical Engineering, Pusan National University) , Ryu, Su-Chak (Department of Nanomedical Engineering, Pusan National University)

Abstract ▼ AI-Helper

The objective of our study was to produce an imitation bone material consisting of hydroxyapatite with a compact and spongy structure. This study shows the ideal content of $SiO_2$ and the sintering temperature to produce imitation bone that has the mechanical properties of natural bone. On the basis of our determination of the ideal conditions, a compact part was produced and its mechanical properties were tested. A compact part made of 0.5 wt% $SiO_2$ and sintered at $1350^{\circ}C$ showed excellent mechanical properties. The bioactivity of the compact part under this condition was tested, and it was found to be bioactive. The porous part was produced by controlling the powder size, and the dual structure was manufactured by combining the compact and porous parts. A water permeability test confirmed that the dual structure had an interconnected pore structure. Therefore, this dual-body structure is feasible for use in the creation of implants.

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제안 방법

^19-21) We suggest a new and simple method for the production of porous HA ceramics. The objective of our study is to find the ideal content of SiO₂ that must be used and the sintering temperature that must be maintained to develop a bone replacement that satisfies the mechanical properties of natural bone and that generates the dual structure. The porous part was produced by controlling the powder size.
The experiment was performed in three steps: the manufacture of the outside body, the manufacture of the inside body and the combining of the outside body and the inside body. Fig.
A universal testing machine (SMB-001-5T, SM TEST, Korea) was used to measure the bending and compressive strength of the outside body, and a hardness test was performed using a micro-Vicker’s hardness tester (FM-700, Future Tech, Japan).
A hardness test of the outside body was performed using a micro-Vicker’s hardness tester (FM-700, Future Tech, Japan) at 10 gf/mm2.
9. Experimental procedure and result of the water permeability test.
In this study, various temperatures for sintering and different SiO₂ contents were analyzed to find the optimal conditions required for the production of an imitation bone that has the mechanical properties of natural bone. The specimen with 0.

대상 데이터

The specimen was prepared at a size of 4.5 × 25 × 1.5(mm).

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[국내논문] Fabrication of Hydroxyapatite Ceramics to Mimic the Natural Bone Structure 원문보기

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[국내논문] Fabrication of Hydroxyapatite Ceramics to Mimic the Natural Bone Structure 원문보기

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