Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New technique offers strong, flawless 3-D printed ceramics

04.01.2016

Researchers have developed a way to create ceramics using 3D printing that results in a strong material with little tendency to crack that can be fabricated into complex, curved and porous shapes.

Ceramic materials offer many appealing qualities, including high-temperature stability, environmental resistance, and high strength. But unlike polymers and some metals, ceramic particles don't fuse together when heated.


This image shows a ceramic spiral created by the additive manufacturing process. This material relates to a paper that appeared in the Jan. 1, 2016 issue of Science, published by AAAS. The paper, by Z.C. Eckel at HRL Laboratories in Malibu, CA, and colleagues was titled, "Additive manufacturing of polymer-derived ceramics."

Credit: HRL Laboratories, LLC

Thus, the few 3D printing techniques that have been developed for ceramics have slow production rates and involve additives that increase the material's tendency to crack.

Zak Eckel and colleagues were able to improve upon these processes by using silicon- and oxygen-based polymers that, upon polymerization, trap the UV light so that additives aren't needed for the UV curing steps.

Once the polymer is printed, the part is heated to a high temperature to burn off the oxygen atoms, thus forming a highly dense and strong silicon carbide product.

Using electron microscopy to analyze the end product, the researchers detected no porosity or surface cracks.

Further tests reveal that the ceramic material can withstand temperatures of 1,400⁰ Celsius (2552⁰ Fahrenheit) before experiencing cracking and shrinkage.

The authors note that these developments, which also create a more efficient ceramic-production process, hold important implications for numerous high-temperature applications, such as in hypersonic vehicles and jet engines.

Media Contact

Natasha Pinol
npinol@aaas.org
202-326-7088

 @AAAS

http://www.aaas.org 

Natasha Pinol | EurekAlert!

More articles from Materials Sciences:

nachricht Watching atoms move in hybrid perovskite crystals reveals clues to improving solar cells
22.11.2017 | University of California - San Diego

nachricht Fine felted nanotubes: CAU research team develops new composite material made of carbon nanotubes
22.11.2017 | Christian-Albrechts-Universität zu Kiel

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>