scholarly journals Advanced ceramics and relevant polymers for environmental and biomedical applications

2020 ◽  
Vol 10 (4) ◽  
pp. 5747-5754 ◽  
Keyword(s):  
Biomedical Applications ◽  
Polymeric Materials ◽  
Ceramic Materials ◽  
Inert Atmosphere ◽  
Advanced Ceramics ◽  
Heat Engines ◽  
Sic Ceramics ◽  
Advanced Technologies ◽  
Inorganic Substrates ◽  
Dental Applications

Ceramics result from combinations and structural arrangements of inorganic substrates for metals and nonmetals. They bind covalently forming ceramic with distinctive properties. Advanced ceramics can be applied in progressive applications. They comprise advanced heat engines for communication and energy transmission. They are developing among the required materials for advanced technologies. Advanced ceramics are getting along modern technological applications. Researches and studies focus on enhancing and optimizing the desired properties. They are trying to overcome some disadvantages such as brittleness and poor mechanical properties. Polymers play an important role in either forming ceramics or blending with them to form efficient composites. Some polymers are classified as inorganic and organic materials such as polysilazanes. They consist of silicon, nitrogen, hydrogen and carbon in certain cases. Polysilazanes act as precursors to SiO2, Si3N4 and SiC ceramics. Perceramic polymers are pyrolyzed polymeric materials in an inert atmosphere producing ceramic materials. Ceramics can be applied in the absence or the presence of polymers in various fields. They comprise wear related, environmental and electrical applications as well. Bioceramics and biopolymers were used as implants in orthopaedics. Zirconia based ceramics act as successful materials to be applied in dental applications.

scholarly journals CeO2 Nanoparticle-Containing Polymers for Biomedical Applications: A Review

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 924
Author(s):  
Alexander B. Shcherbakov ◽  
Vladimir V. Reukov ◽  
Alexander V. Yakimansky ◽  
Elena L. Krasnopeeva ◽  
Olga S. Ivanova ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Metal Oxide Nanoparticles ◽  
Polymeric Materials ◽  
Negative Effects ◽  
New Horizons ◽  
Beneficial Effects ◽  
Advanced Composite ◽  
Unique Material ◽  
Biomedical Polymers ◽  
Biomedical Potential

The development of advanced composite biomaterials combining the versatility and biodegradability of polymers and the unique characteristics of metal oxide nanoparticles unveils new horizons in emerging biomedical applications, including tissue regeneration, drug delivery and gene therapy, theranostics and medical imaging. Nanocrystalline cerium(IV) oxide, or nanoceria, stands out from a crowd of other metal oxides as being a truly unique material, showing great potential in biomedicine due to its low systemic toxicity and numerous beneficial effects on living systems. The combination of nanoceria with new generations of biomedical polymers, such as PolyHEMA (poly(2-hydroxyethyl methacrylate)-based hydrogels, electrospun nanofibrous polycaprolactone or natural-based chitosan or cellulose, helps to expand the prospective area of applications by facilitating their bioavailability and averting potential negative effects. This review describes recent advances in biomedical polymeric material practices, highlights up-to-the-minute cerium oxide nanoparticle applications, as well as polymer-nanoceria composites, and aims to address the question: how can nanoceria enhance the biomedical potential of modern polymeric materials?

scholarly journals Ceramic Materials for Advanced Heat Engines

1987 ◽  
Vol 109 (1) ◽  
pp. 99-99
Author(s):  
D. C. Larsen ◽  
J. W. Adams ◽  
L. R. Johnson ◽  
A. P. S. Teotia ◽  
L. G. Hill ◽  
...  
Keyword(s):  
Ceramic Materials ◽  
Heat Engines

Ceramic Additive Manufacturing Using VAT Photopolymerization

2018 ◽  
Author(s):  
Diptanshu ◽  
Erik Young ◽  
Chao Ma ◽  
Suleiman Obeidat ◽  
Bo Pang ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Additive Manufacturing ◽  
Thermal Processing ◽  
Biomedical Applications ◽  
Ceramic Materials ◽  
Ceramic Suspension ◽  
Alumina Particles ◽  
Compressive Testing ◽  
The Difference ◽  
Porosity Percentage

The popularity of additive manufacturing for producing porous bio-ceramics using vat photopolymerization in the recent years has gained a lot of impetus due to its high resolution and low surface roughness. In this study, a commercial vat polymerization printer (Nobel Superfine, XYZprinting) was used to create green bodies using a ceramic suspension consisting of 10 vol.% of alumina particles in a photopolymerizable resin. Four different sizes of cubical green bodies were printed out. They were subjected to thermal processing which included de-binding to get rid of the polymer and thereafter sintering for joining of the ceramic particles. The porosity percentage of the four different sizes were measured and compared. The lowest porosity was observed in the smallest cubes (5 mm). It was found to be 43.3%. There was an increase in the porosity of the sintered parts for the larger cubes (10, 15 and 20 mm). However, the difference in the porosity among these sizes was not significant and ranged from 61.5% to 65.2%. The compressive testing of the samples showed that the strength of the 5-mm cube was the maximum among all samples and the compressive strength decreased as the size of the samples increased. These ceramic materials of various densities are of great interest for biomedical applications.

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