Influence of Solid Loading on the Gel-Casting of Porous NiTi Alloys.

Ze Wang, Zhiqiang He, Bohua Duan, Xinli Liu, Dezhi Wang

Abstract read

In one paragraph

Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Ze WangSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.

Zhiqiang HeSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.

Bohua DuanSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.ORCID 0000-0002-7165-0436

Xinli LiuSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.ORCID 0000-0002-2971-9348

Dezhi WangSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.

Funding

National Natural Science Foundation of China 51874368Natural Science Foundation of Hunan Province 2020JJ5764

6 · The paper itself

Abstract

Porous NiTi alloys are widely applied in the field of medical implant materials due to their excellent properties. In this paper, porous NiTi alloys were prepared by non-aqueous gel-casting. The influence of solid loading on the process characteristics of slurries and the microstructure and mechanical properties of sintered samples were investigated. The viscosity and the stability of slurry significantly increased with the growth of solid loading, and the slurry had better process characteristics in the solid loading range of 40-52 vol.%. Meanwhile, the porosity and average pore diameter of the sintered NiTi alloys decreased with a rise in the solid loading, while the compressive strength increased. Porous NiTi alloys with porosities of 43.3-48.6%, average pore sizes of 53-145 µm, and compressive strengths of 87-167 MPa were fabricated by gel-casting. These properties meet the requirements of cortical bone. The results suggest that the pore structure and mechanical properties of porous NiTi products produced by gel-casting can be adjusted by controlling the solid loading.

Indexed as

gel-castingmicrowave sinteringnickel titanium alloyporous materialssolid loading

Identifiers

PMID36499892

DOI10.3390/ma15238398

PMCPMC9738916

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