Effects of solid loadings and silica addition on microstructure and compressive strength of hydroxyapatite specimens fabricated by freeze casting technique

Jongprateep, Oratai; Wattana, Nuchsara; Sato, Nicha; Kiên, Phạm Trung; Inseemeesak, Benjaporn

doi:10.1016/j.ceramint.2018.08.125

Cited by 8 publications

(5 citation statements)

References 14 publications

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“…Methods to create porous microstructures include foam replication where a sponge is coated with a ceramic slip followed by its burning out [44], the use of sacrificial porogen particles [45], gel casting [46] and freeze-casting [47,48]. Freeze-casting is a method of choice for CPCs due to the formation of large and elongated interconnected channels and the large tunability in pore sizes.…”

Section: 2| Microscale: Adding Porositymentioning

confidence: 99%

“…Although porous scaffolds are generally associated with TE approaches and weak materials, porosity can be implemented into CPCs using various techniques to tune the mechanical properties (Figure 4). Methods to create porous microstructures include foam replication where a sponge is coated with a ceramic slip followed by its burning out [44], the use of sacrificial porogen particles [45], gel casting [46] and freeze-casting [47,48]. Freeze-casting is a method of choice for CPCs due to the formation of large and elongated interconnected channels and the large tunability in pore sizes.…”

Section: 2| Microscale: Adding Porositymentioning

confidence: 99%

See 1 more Smart Citation

Bioinspired approaches to toughen calcium phosphate-based ceramics for bone repair.

Dee

You

Teoh

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

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Highlights:• Bone has a complex multi-level hierarchical organisation. This structural organisation is key for its outstanding properties. • Artificial calcium phosphate ceramics (CPCs) are promising for achieving the set of mechanical and biological requirements for use as bone implants. • At individual lengthscales, methods have been developed to control crystal phases, microscale porosity and macroscopic geometry but the CPCs produced remain intrinsically brittle. • Inspired by the organisation of bones and other biomaterials, CPCs and their composites could have their toughness increased through multi-level hierarchical microstructures. • Challenges remain but recent advances in ceramic processing and toughening may pave the way for a new generation of medical implants.

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Section: 2| Microscale: Adding Porositymentioning

confidence: 99%

Section: 2| Microscale: Adding Porositymentioning

confidence: 99%

Bioinspired approaches to toughen calcium phosphate-based ceramics for bone repair.

Dee

You

Teoh

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

View full text Add to dashboard Cite

show abstract

“…After immersion in simulated body fluid (SBF), the 5% SiO 2 exhibited the thickest bone‐like layer of apatite on its surface, whereas the 10% exhibited high dissolution rates and a granular apatite layer. One study [ 60 ] found that adding 2.5% of SiO 2 particles into different concentrations of HA slurries had no marked effect on both porosity and pore size; however, a significant effect on compressive strength could be found for a HA concentration of 35%, going from 17.6 MPa without silica to 29.3 MPa after the addition of SiO 2 .…”

Section: Bonementioning

confidence: 99%

Aligned Ice Templated Biomaterial Strategies for the Musculoskeletal System

Diaz

Forsyth

Boccaccını

2023

Adv Healthcare Materials

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Aligned pore structures present many advantages when conceiving biomaterial strategies for treatment of musculoskeletal disorders. Aligned ice templating (AIT) is one of the many different techniques capable of producing anisotropic porous scaffolds; its high versatility allows for the formation of structures with tunable pore sizes, as well as the use of many different materials. AIT has been found to yield improved compressive properties for bone tissue engineering (BTE), as well as higher tensile strength and optimized cellular alignment and proliferation in tendon and muscle repair applications. This review evaluates the work that has been done in the last decade toward the production of aligned pore structures by AIT with an outlook on the musculoskeletal system. This work describes the fundamentals of the AIT technique and focuses on the research carried out to optimize the biomechanical properties of scaffolds by modifying the pore structure, categorizing by material type and application. Related topics including growth factor incorporation into AIT scaffolds, drug delivery applications, and studies about immune system response will be discussed.

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“…At low shear rate, the viscosity of slurry increases with the increase of solid content, and the relationship between solid loading and viscosity satisfies Krieger Dougherty model (See Eq.1.) [18][19].…”

Section: The Flowermentioning

confidence: 99%

Research on Manufacturing Technology of Complex Modeling Chinaware Integrated with 3D Printing Technology

2022

IJM

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The manufacturing process of complex chinaware combining 3D printing technology with traditional technology is studied. In this process, the ceramic artwork was divided into several components. The manufacturing process of each part of the green body was selected according to the shape, and then all the green bodies were fitted together through the assembly structure and interpenetrating network binder for biscuit firing (debinding), glazing and glaze firing. The composition ratio of ceramic slurry was adjusted to make its sintering shrinkage be the same as that of traditional ceramic slurry. The experiments gave the technological process and parameters, and its structures were analyzed by field emission scanning electron microscope. The influence factors of glue discharge process, microstructure and pore distribution of the printing body after glue discharge were studied, aiming to provide a basis for the popularization and application of the process.

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Effects of solid loadings and silica addition on microstructure and compressive strength of hydroxyapatite specimens fabricated by freeze casting technique

Cited by 8 publications

References 14 publications

Bioinspired approaches to toughen calcium phosphate-based ceramics for bone repair.

Bioinspired approaches to toughen calcium phosphate-based ceramics for bone repair.

Aligned Ice Templated Biomaterial Strategies for the Musculoskeletal System

Research on Manufacturing Technology of Complex Modeling Chinaware Integrated with 3D Printing Technology

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