Functionally graded materials for orthopedic applications – an update on design and manufacturing

Sola, Antonella; Bellucci, Devis; Cannillo, Valeria

doi:10.1016/j.biotechadv.2015.12.013

Cited by 240 publications

(104 citation statements)

References 339 publications

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“…These interfacial stresses lead to delamination and create points of failure. Consequently, application of soft and stiff composite materials demands improved methods to create robust interfaces between materials with strongly contrasting mechanical properties and/or swelling behavior …”

Section: Introductionmentioning

confidence: 99%

Stereolithographic 3D Printing for Deterministic Control over Integration in Dual‐Material Composites

Muralidharan

Uzcategui

McLeod

et al. 2019

Adv Materials Technologies

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A rapid and facile approach to predictably control integration between two materials with divergent properties is introduced. Programmed integration between photopolymerizable soft and stiff hydrogels is investigated due to their promise in applications such as tissue engineering where heterogeneous properties are often desired. The spatial control afforded by grayscale 3D printing is leveraged to define regions at the interface that permit diffusive transport of a second material in‐filled into the 3D printed part. The printing parameters (i.e., effective exposure dose) for the resin are correlated directly to mesh size to achieve controlled diffusion. Applying this information to grayscale exposures leads to a range of distances over which integration is achieved with high fidelity. A prescribed finite distance of integration between soft and stiff hydrogels leads to a 33% increase in strain to failure under tensile testing and eliminates failure at the interface. The feasibility of this approach is demonstrated in a layer‐by‐layer 3D printed part fabricated by stereolithography, which is subsequently infilled with a soft hydrogel containing osteoblastic cells. In summary, this approach holds promise for applications where integration of multiple materials and living cells is needed by allowing precise control over integration and reducing mechanical failure at contrasting material interfaces.

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Section: Introductionmentioning

confidence: 99%

Stereolithographic 3D Printing for Deterministic Control over Integration in Dual‐Material Composites

Muralidharan

Uzcategui

McLeod

et al. 2019

Adv Materials Technologies

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“…However, the 3D shapes obtained from these techniques are relatively simple and limited to cylinders or blocks. Accordingly, AM technologies may be considered a suitable method of fabricating customized parts with the required accuracy [25]. The ability to use more than one material using the DED technique is employed to print FGM parts from two, and sometimes three, materials.…”

Section: Classification and Manufacturingmentioning

confidence: 99%

Lattice Structures and Functionally Graded Materials Applications in Additive Manufacturing of Orthopedic Implants: A Review

Mahmoud

Elbestawi

2017

JMMP

192

117

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A major advantage of additive manufacturing (AM) technologies is the ability to print customized products, which makes these technologies well suited for the orthopedic implants industry. Another advantage is the design freedom provided by AM technologies to enhance the performance of orthopedic implants. This paper presents a state-of-the-art overview of the use of AM technologies to produce orthopedic implants from lattice structures and functionally graded materials. It discusses how both techniques can improve the implants' performance significantly, from a mechanical and biological point of view. The characterization of lattice structures and the most recent finite element analysis models are explored. Additionally, recent case studies that use functionally graded materials in biomedical implants are surveyed. Finally, this paper reviews the challenges faced by these two applications and suggests future research directions required to improve their use in orthopedic implants.

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“…Laser cladding (LCT) is a promising technique because it produces full-dense coatings with outstanding properties [120], forms strong metallurgical bond between substrate and coating [121], able to deposit ceramics or metals on metallic substrate [122], and leads to reduced heat affected zone (HAZ), Figure 51 shows different zone induced at cladding area [119]. Also, it provides controlled shape of the coating, flexible process, controlled degree of dilution, low surface roughness with high deposition rate, and requires minimum surface preparations [123].…”

Section: Laser Cladding Laser Cladding Laser Cladding Laser Cladding mentioning

confidence: 99%

“…LCT involves formation of porosity in clad which reduces the strength of the structure [121]. Also, cracking and delamination of coating may take place due to thermal expansion difference between coating and substrate [122]. The process parameters should be carefully chosen to overcome the decomposition of bioceramics M A N U S C R I P T…”

Section: Bioglass Bioglass Bioglass Bioglassmentioning

confidence: 99%

Biomedical materials and techniques to improve the tribological, mechanical and biomedical properties of orthopedic implants – A review article

Ibrahim

Sarhan

Yusuf

et al. 2017

Journal of Alloys and Compounds

266

100

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Functionally graded materials for orthopedic applications – an update on design and manufacturing

Cited by 240 publications

References 339 publications

Stereolithographic 3D Printing for Deterministic Control over Integration in Dual‐Material Composites

Stereolithographic 3D Printing for Deterministic Control over Integration in Dual‐Material Composites

Lattice Structures and Functionally Graded Materials Applications in Additive Manufacturing of Orthopedic Implants: A Review

Biomedical materials and techniques to improve the tribological, mechanical and biomedical properties of orthopedic implants – A review article

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