Highly closed porosity and high strength alumina ceramic foams fabricated by colloidal hydrophobic modification

Zirconia-alumina ceramic foam scaffolds with a nanocrystalline HAP coating were used for the preparation of integrated motile orbital implants. This study demonstrated that open-cell ceramic foams with enhanced strength-to-density ratio are quite suitable as biocompatible materials for the manufacture of orbital implants for post-enucleation syndrome treatment. In-vivo studies demonstrated that the application of a nanocrystallyne (not sintered) HAP coating facilitated the formation of dense fibrous capsule around the implant as well as the fast tissue ingrowth into the implant’s internal space. Orbital implants with the optimized pore size and HAP content were implanted to the animal’s eye cavity with their fixation to the extraocular muscles, and their motility was ensured.

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Zirconia toughened alumina ceramic foams for potential bone graft applications: fabrication, bioactivation, and cellular responses

Journal of Materials Science Materials in Medicine ◽

10.1007/s10856-008-3401-x ◽

2008 ◽

Vol 19 (7) ◽

pp. 2743-2749 ◽

Cited By ~ 38

Author(s):

X. He ◽

Y. Z. Zhang ◽

J. P. Mansell ◽

B. Su

Keyword(s):

Bone Graft ◽

Cellular Responses ◽

Alumina Ceramic ◽

Ceramic Foams ◽

Zirconia Toughened Alumina

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Preparation and characterization of microporous mullite-corundum refractory aggregates with high strength and closed porosity

Ceramics International ◽

10.1016/j.ceramint.2019.12.056 ◽

2020 ◽

Vol 46 (6) ◽

pp. 8274-8280 ◽

Cited By ~ 1

Author(s):

Jiangtao Qi ◽

Wen Yan ◽

Zhe Chen ◽

Stefan Schafföner ◽

Wenying Zhou ◽

...

Keyword(s):

High Strength ◽

Corundum Refractory ◽

Closed Porosity

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3353 Development of a Dynamic Mask Stereolithography Apparatus using Curable Slurry for Fabricating High Strength Alumina Ceramic Parts

Proceedings of International Conference on Leading Edge Manufacturing in 21st century LEM21 ◽

10.1299/jsmelem.2011.6._3353-1_ ◽

2011 ◽

Vol 2011.6 (0) ◽

pp. _3353-1_-_3353-6_

Author(s):

Cho-Pei Jiang ◽

Jia-Chang Wang ◽

Chang-Cheng Chen

Keyword(s):

High Strength ◽

Alumina Ceramic

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Dynamic Response and Fracture of High Strength Boride/Alumina Ceramic Composite

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.326-328.1573 ◽

2006 ◽

Vol 326-328 ◽

pp. 1573-1576

Author(s):

Dong Feng Cao ◽

Li Sheng Liu ◽

Jiang Tao Zhang

Keyword(s):

Dynamic Response ◽

Ceramic Composite ◽

Split Hopkinson Pressure Bar ◽

Dynamic Compression ◽

High Strength ◽

Alumina Ceramic ◽

Hopkinson Pressure Bar ◽

Dynamic Loadings ◽

Split Hopkinson ◽

Pressure Bar

Dynamic response and fracture of high strength boride/alumina ceramic composite were investigated by split Hopkinson pressure bar (SHPB) experiment in this paper. The compressive stress–strain curves and dynamic compression strength of the composites were tested. The surface’s microstructure of fractured composites were examined by using scanning electron microscope (SEM) to investigate the fracture mechanism. The results show that boride/alumina has high dynamic compressive strength and high Young’s modulus. The main fracture mode of the material is the fracture of the ceramic grains. The micro-voids and flaws, generated during the sintering and manufacturing of material and mechanical process of specimen, decrease the strength of the material because they provide the source of crack expansion when the material undergoes the dynamic loadings.

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