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477:. The sol and gel are mixed to produce an oxide material which are generally a type of ceramic. The excess products (a liquid solvent) are evaporated. The particles desires are then heated in a process called densification to produce a solid product. This method could also be applied to produce a nanocomposite by heating the gel on a thin film to form a nanoceramic layer on top of the film.
35:
546:
Medical technology used
Ceramic nanoparticle for bone repair. It has been suggested for areas including energy supply and storage, communication, transportation systems, construction and medical technology. Their electrical properties may allow energy to be transferred efficiencies approaching 100%.
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was used to consolidate nanoceramic powders using high temperatures. This resulted in a rough material that damages the properties of ceramics and requires more time to obtain an end product. This technique also limits the possible final geometries. Microwave sintering was developed to overcome such
510:
The nanopowder is placed in an insulation box composed of low insulation boards to allow the microwaves to pass through it. The box increases temperature to aid absorption. Inside the boxes are suspectors that absorb microwaves at room temperature to initialize the sintering process. The microwave
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into a three-dimensional structure. The laser hardens the spots that it touches and leaves the rest unhardened. The unhardened material is then dissolved to produce a "shell". The shell is then coated with ceramic, metals, metallic glass, etc. In the finished state, the nanotruss of ceramic can be
537:
called nanotruss. As of 2015 the largest result is a 1mm cube. The lattice structure compresses up to 85% of its original thickness and can recover to its original form. These lattices are stabilized into triangles with cross-members for structural integrity and flexibility.
393:- An electrical insulator that can be polarized (having electrons aligned so that there is a negative and positive side of the compound) by an electric field to shorten the distance of electron transfer in an electric current
385:
Ceramic nanoparticle have unique properties because of their size and molecular structure. These properties are often shown in terms of various electrical and magnetic physics phenomenons which include:
507:, which produces electromagnetic waves to vibrate and heat the powder. This method allows for heat to be instantly transferred across the entire volume of material instead of from the outside in.
370:
In 2014 researchers announced a lasering process involving polymers and ceramic particles to form a nanotruss. This structure was able to recover its original form after repeated crushing.
316:, which are generally classified as inorganic, heat-resistant, nonmetallic solids that can be made of both metallic and nonmetallic compounds. The material offers unique properties.
530:
to strengthen ceramics. They discovered that seashells' durability come from their "microarchitecture". Research began to focus on how ceramics could employ such an architecture.
452:. Its maximum compression is about 1 micron from a thickness of 50 nanometers. After its compression, it can revert to its original shape without any structural damage.
373:
Ceramic nanoparticles have been used as drug delivery mechanism in several diseases including bacterial infections, glaucoma, and most commonly, chemotherapy deliver in
523:. This process was replaced by sintering in the early 2000s and then by microwave sintering. None of these techniques proved suitable for large scale production.
444:
Ceramic nanoparticle is more than 85% air and is very light, strong, flexible and durable. The fractal nanotruss is a nanostructure architecture made of
674:
Wang, Chen-Chi; Ying, Jackie Y. (September 15, 1999). "SolāGel
Synthesis and Hydrothermal Processing of Anatase and Rutile Titania Nanocrystals".
567:
644:
608:
Thomas, SC; Harshita; Mishra, PK; Talegaonkar, S (2015). "Ceramic
Nanoparticles: Fabrication Methods and Applications in Drug Delivery".
469:, also known as chemical solution deposition. This involves a chemical solution, or the sol, made of nanoparticles in liquid phase and a
71:
399:- dielectric materials that polarize in more than one direction (the negative and positive sides can be flipped via an electric field)
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ceramics are brittle and rigid and break upon impact. However, Ceramic nanoparticles take on a larger variety of functions, including
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367:). The material is so small that it has basically no flaws. Larger scale materials have flaws that render them brittle.
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heats the suspectors to about 600 Ā°C, sufficient to trigger the nanoceramics to absorb the microwaves.
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which mixes nanoparticles within a solution and gel to form the nanoparticle. Later methods involved
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Ceramic nanoparticle were discovered in the early 1980s. They were formed using a process called
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Nanotrusses may be eventually applicable for building materials, replacing concrete or steel.
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In the early 1980s, the first nanoparticles, specifically nanoceramics were formed, using
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In 2012 researchers replicated the sea sponge's structure using ceramics and the
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This process uses a laser technique called two-photon lithography to etch out a
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423:- materials that change electrical resistance under an external magnetic field
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411:- material that can produce a temporary voltage given a temperature change
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405:- materials that accumulate an electrical charge under mechanical stress
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In 2002, researchers tried to reverse engineer the microstructure of
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473:, usually a gel or polymer, made of molecules immersed in a
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465:One process for making nanoceramics varies is the
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575:Ceramic Materials - Progress in Modern Ceramics
568:"Advanced Sintering of Nano-Ceramic Materials"
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490:flattened and revert to its original state.
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794:"Nanoceramics in Biomedical Applications"
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566:Abdelrazek Khalil, Khalil (April 2012).
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503:problems. Radiation is produced from a
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645:"Ceramics Don't Have To Be Brittle"
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622:10.2174/1381612821666151027153246
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21:Part of a series of articles on
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1:
610:Current Pharmaceutical Design
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375:experimental cancer treatment
850:Nanoparticles by composition
792:Nissan, Ben (January 2014).
737:"R&D 2002:Nano Ceramics"
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763:"Made-to-Order Materials"
363:(pressure and heat, .e.g
237:Nanocrystalline material
213:Nanostructured materials
706:"Miniature Truss Work"
676:Chemistry of Materials
481:Two-photon lithography
365:hot isostatic pressing
833:Ceramic Coating Guide
741:MIT Technology Review
267:Technology portal
62:Mechanical properties
735:Claire Diop, Julie.
655:on 14 September 2014
498:In another approach
312:that is composed of
306:Ceramic nanoparticle
232:Nanoporous materials
95:Buckminsterfullerene
855:Ceramic engineering
773:on 8 September 2013
134:Carbon quantum dots
810:10.1557/mrs2004.13
761:Fesenmaier, Kimm.
704:Fesenmaier, Kimm.
643:Fesenmaier, Kimm.
255:Science portal
67:Optical properties
860:Ceramic materials
688:10.1021/cm990180f
594:978-953-51-0476-6
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115:Carbon allotropes
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769:. Archived from
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535:nanoarchitecture
421:Magnetoresistive
342:magnetoresistive
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43:Carbon nanotubes
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616:(42): 6165ā88.
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427:Superconductive
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346:superconductive
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144:Aluminium oxide
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310:nanoparticle
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159:Cobalt oxide
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139:Quantum dots
72:Applications
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777:5 September
746:December 1,
844:Categories
819:10453/4163
551:References
391:Dielectric
381:Properties
322:dielectric
318:Macroscale
179:Iron oxide
86:Fullerenes
528:seashells
505:magnetron
500:sintering
494:Sintering
471:precursor
456:Synthesis
440:Nanotruss
361:sintering
149:Cellulose
105:Chemistry
57:Chemistry
52:Synthesis
630:26503144
314:ceramics
227:Nanofoam
194:Platinum
77:Timeline
767:Caltech
710:Caltech
649:Caltech
521:sol-gel
515:History
487:polymer
475:solvent
461:Sol-gel
446:alumina
357:sol-gel
154:Ceramic
720:23 May
628:
591:
199:Silver
164:Copper
123:Other
571:(PDF)
448:, or
189:Lipid
779:2013
748:2002
722:2014
661:2014
626:PMID
589:ISBN
348:and
174:Iron
169:Gold
814:hdl
806:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
