Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Extremely thin ceramic components made possible by extrusion

04.09.2015

The Fraunhofer Institute for Ceramic Technologies and Systems IKTS developed a novel concept to produce thin-walled, one-sidedly closed tubes and similar geometries made of ceramics by highly productive extrusion. Thus, among others, the mass production of batteries becomes possible.

Extrusion is one of the most common shaping processes in technical ceramics. Preferably, it is used for the cost-effective production of axisymmetric components. Examples include honeycomb structures, tubes and profiles. The advantage of extrusion is the efficient production of complex structures in an endless strand.


Manufacturing of long, thin-walled and one-sidedly closed tubes of high-performance ceramics by highly productive extrusion.

Challenges lie in delicate shapes with very thin wall thicknesses. In consideration of chemical and abrasion resistance, extruder construction, tool design and feedstock were perfectly matched at Fraunhofer IKTS.

Additionally, the researchers conceptualized special removal and drying technologies, which prevent deformation of the designed components. The concept comprises a microwave drying with a special continuous dryer immediately adjoining the extruder mouthpiece in vertical extrusion.

For the production of the feedstock raw material mixtures were prepared for various functional materials and aqueously plasticized with organic excipients.

For thin-walled extruded products the so-called "green strength", i.e. the dimensional stability of the green body after leaving the die, is of great importance. The feedstocks, specifically developed for thin-walled geometries, are characterized by a very good green strength.

Gundula Fischer, head of the extrusion competence center at Fraunhofer IKTS: "For the first time, a complete technology package for the production of thin and one-side closed ceramic geometries in a short cycle time can be offered due to our concept.

For several highly interesting materials we have already demonstrated the capability, for example in electrolyte tubes that only now enable extremely cost-efficient batteries for the energy transition. With our equipment which includes various piston presses and auger extruders we are ready to realize customer projects."

From October 20 to 23 you will meet IKTS researchers in Hall B1 on CERAMIC APPLICATIONS Booth 219/320.

Weitere Informationen:

http://www.ikts.fraunhofer.de/content/dam/ikts/en/doc2/Press-and-Media/Press_rel...

Katrin Schwarz | Fraunhofer-Institut für Keramische Technologien und Systeme IKTS

More articles from Materials Sciences:

nachricht Move over, Superman! NIST method sees through concrete to detect early-stage corrosion
27.04.2017 | National Institute of Standards and Technology (NIST)

nachricht Control of molecular motion by metal-plated 3-D printed plastic pieces
27.04.2017 | Ecole Polytechnique Fédérale de Lausanne

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>