Wear performance of laser processed tantalum coatings

Dittrick, Stanley; Balla, Vamsi Krishna; Bose, Susmita; Bandyopadhyay, Amit

doi:10.1016/j.msec.2011.08.017

Cited by 39 publications

(20 citation statements)

References 24 publications

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“…Large variation in the hardness can be attributed to the variations in concentration and distribution of MgO particles in the coatings. The high hardness of Ta+MgO coatings compared to Ta coatings can potentially minimize the early-stage bone-implant interface micro-motion induced wear debris generation and associated implant loosening [35]. …”

Section: Resultsmentioning

confidence: 99%

MgO-Doped Tantalum Coating on Ti: Microstructural Study and Biocompatibility Evaluation

Roy

Balla

Bandyopadhyay

et al. 2012

ACS Appl. Mater. Interfaces

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Pure and MgO incorporated Ta coatings were prepared on Cp-Ti substrate using laser engineered net shaping (LENS™) which resulted in diffuse coating-substrate interface. MgO was found along the Ta grain boundaries in the Ta matrix that increased the coating hardness from 185 ± 2.7 HV to 794 ± 93 HV. In vitro biocompatibility study showed excellent early cellular attachment and later stage proliferation in MgO incorporated coatings. The results indicated that although Ta coatings had higher biocompatibility than Ti, it could further be improved by incorporating MgO in the coating, while simultaneously increasing the mechanical properties.

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Section: Resultsmentioning

confidence: 99%

MgO-Doped Tantalum Coating on Ti: Microstructural Study and Biocompatibility Evaluation

Roy

Balla

Bandyopadhyay

et al. 2012

ACS Appl. Mater. Interfaces

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“…Quantification of the cell proliferation using MTT assay showed higher proliferation of cells on the Ta coatings than Ti substrate. Furthermore, wear properties of the LENS™ processed Ta coatings was almost an order of magnitude lower than the Ti substrates [174]. These results can be seen in Fig.…”

Section: Additive Manufacturing (Am) Of Different Biomaterialsmentioning

confidence: 93%

“…The bioactivity of the Ta coatings was thus further amplified by selective doping with MgO, as shown in Fig. 28 [173,174]. Vrancken et al reported the SLM processing of Ti64 alloy composite with 10 wt% Mo additions [176].…”

Section: Additive Manufacturing (Am) Of Different Biomaterialsmentioning

confidence: 99%

“…Reinforcing of Ti based metallic materials with silicon carbide [58], tungsten carbide [59], titanium boride-titanium nitride [160,161] and titanium oxide [63] were successfully demonstrated to increase the surface hardness and wear resistance of the base material. Apart from these, harder metallic materials were also used to improve the tribological properties of Ti based materials such as Tantalum [173,174]. These coatings not only had better tribological properties but also showed good cell proliferation during in vitro cell culture.…”

Section: Applications Of Am In Biomaterials and Biomedical Devicesmentioning

confidence: 99%

“…(a) Microstructure of LENS™ processed Tantalum on Ti [173]. (b) Wear performance of LENS™ processed Ta coatings on Ti [174]. (c) MTT assay of Ti, Ta coating, and Ta + MgO coating after 3, 7, 11 days of osteoblast cell culture as well as (d) osteoblast morphology of Ti, Ta coating, and Ta + MgO coating after 7 days of osteoblast cell culture [175].…”

Section: Figmentioning

confidence: 99%

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Additive manufacturing of biomaterials

Bose

Sahasrabudhe

et al. 2018

Progress in Materials Science

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582

272

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Biomaterials are used to engineer functional restoration of different tissues to improve human health and the quality of life. Biomaterials can be natural or synthetic. Additive manufacturing (AM) is a novel materials processing approach to create parts or prototypes layer-by-layer directly from a computer aided design (CAD) file. The combination of additive manufacturing and biomaterials is very promising, especially towards patient specific clinical applications. Challenges of AM technology along with related materials issues need to be realized to make this approach feasible for broader clinical needs. This approach is already making a significant gain towards numerous commercial biomedical devices. In this review, key additive manufacturing methods are first introduced followed by AM of different materials, and finally applications of AM in various treatment options. Realization of critical challenges and technical issues for different AM methods and biomaterial selections based on clinical needs are vital. Multidisciplinary research will be necessary to face those challenges and fully realize the potential of AM in the coming days.

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Micro‐nano porous structured tantalum‐coated dental implants promote osteogenic activity in vitro and enhance osseointegration in vivo

Cui

Zhang

Meng

et al. 2023

J Biomedical Materials Res

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Due to its excellent biocompatibility and corrosion resistance, tantalum demonstrates versatility as an implant material. However, limited studies investigated the role of tantalum coated titanium-based dental implants. This study aimed to investigate the potential application of micro-nano porous structured tantalum coating on the surface of titanium dental implant. In the present study, micro-nano porous structured tantalum coating was prepared by vacuum plasma spraying (VPS) under selected optimum parameters, various characteristics of tantalum coating (Ta/Ti), including the morphology, potential, constituent, and hydrophilia, were investigated in comparison with its respective control groups, sandblasted titanium (Ti) and titanium coating (Ti/Ti). The adhesion, proliferation, and osteogenic differentiation ability of rat bone marrow mesenchymal cells (BMSCs) on different materials were assessed in vitro.Then the osseointegration capacity of Ti, Ti/Ti, Ta/Ti, and Straumann implants in canine mandible was evaluated with micro-CT, histological sections, and energy dispersive X-ray spectroscopy. These results demonstrated that micro-nanostructured, uneven, and granular tantalum coating was successfully prepared on titanium substrate by VPS with pore size ranging from 50 nm to 5 μm and thickness ranging from 80 to 100 μm. Tantalum coating revealed the highest surface potential, best hydrophilia, and most protein adsorption among Ta/Ti, Ti/Ti, and Ti. Furthermore, Ta/Ti surfaces significantly promoted the adhesion, proliferation, and osteogenic differentiation of BMSCs. In vivo, Ta/Ti implants displayed positive osseointegration capability associated with increased bone mineral density and formation of new bone around implants without tantalum particles released. Together, these findings indicate that tantalum-coated titanium dental implants may serve as a new type of dental implant.

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Wear performance of laser processed tantalum coatings

Cited by 39 publications

References 24 publications

MgO-Doped Tantalum Coating on Ti: Microstructural Study and Biocompatibility Evaluation

MgO-Doped Tantalum Coating on Ti: Microstructural Study and Biocompatibility Evaluation

Additive manufacturing of biomaterials

Micro‐nano porous structured tantalum‐coated dental implants promote osteogenic activity in vitro and enhance osseointegration in vivo

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