Preparation of porous materials from a leucoxene concentrate

Занавескин, К. Л.; Lukashev, R. V.; Maslennikov, A. N.; Terekhov, A. V.; Makhin, M. N.; Занавескин, Л. Н.

doi:10.1134/s0020168516080185

Cited by 4 publications

(1 citation statement)

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“…Because the morphology of human bones is highly personalized, the use of traditional processing methods can easily cause mismatch between porous bone implants and human bones, which affects the treatment effect; the preparation cycle is long, and the migration is weak [13]. With the rapid development of additive manufacturing (AM) technology, the manufacture of porous bone implants has become possible, and selective laser melting [14] (SLM) technology, as a kind of additive manufacturing technology, has been widely used in the research field of medical biological bones.…”

Section: Introductionmentioning

confidence: 99%

Personalized Artificial Tibia Bone Structure Design and Processing Based on Laser Powder Bed Fusion

et al. 2022

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Bone defects caused by bone diseases and bone trauma need to be implanted or replaced by surgery. Therefore, it is of great significance to design and prepare a tibial implant with good biocompatibility and excellent comprehensive mechanical properties. In this paper, with 316L stainless steel powder as the main material, a personalized artificial tibia design and processing method based on laser powder bed fusion is proposed. Firstly, the personalized model of the damaged part of the patient is reconstructed. Then, the porous structure of human tibia is manufactured by selective laser melting technology. To research the factors affecting the quality of selective laser melting porous structure, a laser heat source model, heat transfer model and molten pool model of laser powder bed fusion process were constructed; then, by changing the laser process parameters (laser power, laser beam diameter, scanning speed, powder layer thickness, etc.) to conduct multiple sets of simulation experiments, it is obtained that when the “laser power is 180 W, the laser scanning speed is 1000 mm/s, the laser beam diameter is 80 μm, the powder layer thickness is 50 μm”, the porous stainless steel parts with better quality can be obtained. Finally, the porous structure was fabricated by selective laser processing, and its properties were tested and analyzed. The experimental results show that the cell side length of cube is 1.2 mm, the elastic modulus of octahedral porous structure with pillar diameter of 0.35 mm is about 17.88 GPa, which match well with tibial bone tissue.

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Section: Introductionmentioning

confidence: 99%