Cell Proliferation, Corrosion Resistance and Mechanical Properties of Novel Titanium Foam with Sheet Shape

Kato, Komei; Yamamoto, Akiko; Ochiai, Shojiro; Daigo, Yuzo; Isobe, Takeshi; Matano, Suguru; Omori, Kenichi

doi:10.2320/matertrans.m2011325

Cited by 12 publications

(4 citation statements)

References 28 publications

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“…[13,14] At present, the main methods of preparing porous titanium are 3D printing, powder metallurgy, slurry foaming, and freeze casting. [15][16][17][18][19][20] Among these methods, freeze casting has gained much attention because the pore structure can be easily adjusted, the pores are highly connected, the cost is low, and porous materials with anisotropic mechanical properties like bone tissue can be produced. [21,22] Moreover, the unidirectional structures, easily obtained via freeze casting, can promote the preferential growth of cells in the pore direction, thereby improving nutrient supply and vascularization ability.…”

Section: Introductionmentioning

confidence: 99%

Fabricating Honeycomb Titanium by Freeze Casting and Anodizing for Biomedical Applications

Chen

Liu

et al. 2021

Adv Eng Mater

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Herein, porous titanium materials with honeycomb pore structure are prepared by freeze casting. The effect of freezing temperature on the pore structure and mechanical properties is also investigated. As the freezing temperature decreases from À10 to À50 C, the compressive strength decreases from 79.5 AE 9.2 to 55.0 AE 4.3 MPa, and then increases to 90.1 AE 4.4 MPa. Porous titanium with an average pore size of 111.3 AE 25.2 μm and porosity over 60% are obtained at À10 C. And the porous titanium is observed to form a neatly arranged nanopore structure with an average pore size of 28.5 AE 2.8 nm on the surface after anodizing. These nanopore structures can promote MG-63 cell adhesion and proliferation, thus improving the biocompatibility of porous titanium. Further, in the simulated body fluid culture experiment, culturing for 3 days can induce Ca 2þ and PO 4 3À to nucleate and deposit on the surface of anodized porous titanium, while 7 days can deposit a lot of apatite on the surface. In contrast, no apatite deposition is observed on the surface of the porous titanium sample without anodizing. These prepared porous titanium materials with high porosity, large pore size, sufficient mechanical properties, good biocompatibility, and biological activity might be a potential biomedical material.

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Section: Introductionmentioning

confidence: 99%

Fabricating Honeycomb Titanium by Freeze Casting and Anodizing for Biomedical Applications

Chen

Liu

et al. 2021

Adv Eng Mater

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“…The metal-acid reaction produces hydrogen gas, which causes expansion in the slurry. , To get high-quality metallic foam, adequate stabilizing measurements should be taken during the drying of slurries, and then, in the following stage, this dried slurry is subjected a sintering process to strengthen interconnected metallic foam. With this method, porosity up to 60% can be achieved. ,, …”

Section: Classification Of Metallic Foam Production and Processing Te...mentioning

confidence: 99%

“…With this method, porosity up to 60% can be achieved. 45,111,130 2.2.4.2. Foaming by the Sponge Replication Method.…”

Section: Space Holder Techniquementioning

confidence: 99%

A Review of Different Manufacturing Methods of Metallic Foams

Hassan,

Alnaser

2024

ACS Omega

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Metallic foam is a popular topic due to its diverse industrial applications and unique combination of properties. Metallic foam is significantly lighter than nonfoam metal materials due to its porous structure, which incorporates a substantial amount of air or voids. This lower density makes metallic foam advantageous in applications in which weight reduction is critical. This makes it ideal for the aerospace, automotive, and construction industries; also, its versatile nature continues to make it an attractive material for various industrial applications such as impact absorbers, heat exchangers, and biomedical and marine engineering. However, the choice between metallic foam and nonfoam metal also depends on other factors like mechanical properties, cost, and specific application requirements. This review describes various fabrication methods of metallic foam that include the liquid metallurgy route which uses liquid or semiliquid metal, the powder metallurgy route uses metal in powder form, metal ion, and the metal vapor route which uses electrolytic deposition method to produce metallic foam. These methods include direct gas injection, adding blowing agents in solid or liquid metals, investment casting, the addition of a space holder in the precursor, metallic ion, vapor deposition on a polymer sponge, and many more. The morphology of metallic foam depends upon the method that is chosen for fabrication, and up to 98% porosity can be achieved by these methods. Additive manufacturing for metallic foam fabrication is an emerging field based on selective laser melting and electron beam melting principles. It has exceptional possibilities for generating complicated 3D shapes and customizing the material characteristics. The main purpose of this review article is to give significant insights into the various production procedures for metallic foams to researchers, engineers, and industry experts, assisting in the selection of acceptable methods depending on individual application needs. This review investigates the manufacturing conditions for metallic foams and finally discusses their advantages, drawbacks, and obstacles in mass production. The findings add to current efforts to expand metallic foam technology and encourage its wider application across diverse sectors, opening the path for future research and development.

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“…Porous titanium is a widely applicable material in the chemical, petroleum, and pharmaceutical industries due to the excellent properties it inherits from titanium and its alloys [1][2][3]. It is also low density, and displays superior corrosion resistance, a high specific strength, and biocompatibility.…”

Section: Introductionmentioning

confidence: 99%

Effect of CaCl2 on Microstructure of Calciothermic Reduction Products of Ti2O3 to Prepare Porous Titanium

Yang

Wan

et al. 2018

Metals

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The compound CaCl2 plays a significant role in the process of direct calciothermic reduction of Ti2O3 to prepare porous titanium. In this paper, the effect of CaCl2 on reduction products by calciothermic reduction of Ti2O3 was investigated. Results show that the distribution of CaCl2 in reduction preform influences particle size and morphology differences in reduction products both on the surface and the inside. The CaCl2 is transferred to the surface of the Ti2O3 preform due to its volatilization before and throughout reduction. The content of CaCl2 in the surface zone of Ti2O3 preform is significantly higher than that in the interior during the reduction process, contributing to the formation of large Ti particles with a smooth shape on the surface, and small Ti particles with inherited morphology of Ti2O3 inside. More CaCl2 causes the aggregation of Ti particles to form large Ti particles which are advantageous as they connect and form a more solid porous titanium structure. The presence of a small amount of CaCl2 in the interior also results in the coexistence of small Ti and CaO particles, forming a loose structure with uniform distribution.

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Cell Proliferation, Corrosion Resistance and Mechanical Properties of Novel Titanium Foam with Sheet Shape

Cited by 12 publications

References 28 publications

Fabricating Honeycomb Titanium by Freeze Casting and Anodizing for Biomedical Applications

Fabricating Honeycomb Titanium by Freeze Casting and Anodizing for Biomedical Applications

A Review of Different Manufacturing Methods of Metallic Foams

Effect of CaCl2 on Microstructure of Calciothermic Reduction Products of Ti2O3 to Prepare Porous Titanium

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