Innovative casting technology for the manufacturing of silicon-infiltrated silicion carbide (SiSiC) opens new perspectives for chemical and plant engineering:
Despite its outstanding chemical, thermal and tribological properties, the high costs of production currently prevent the use of silicon-infiltrated SiSiC in many applications. A novel method overcomes technical manufacturing limitations of conventional shaping methods.
Researchers at Fraunhofer IKTS in Dresden developed a process to realize large-scale, complex SiSiC components with differences in wall thickness and demanding undercuts cost-effectively.
They adapted the established production process for silicon-filled reaction resin concretes by SICcast Mineralguss GmbH to the ceramic production. Coarse particles mixed with a polymeric binder are casted and cured in one single pressure step into open molds.
In this way, cost-intensive material-, machine- and personnel-consuming conventional modular construction and process combinations can be bypassed.
Increased lifetime and productivity, minimized costs
"The efficient manufacturing process allows the substitution of conventional materials in, among others, chemical and plant engineering. By using silicon-infiltrated SiSiC, the lifetime of machines and their productivity can be significantly improved. This presents great potential to increase competitiveness", says Jörg Adler, department head at Fraunhofer IKTS in Dresden.
Radial pump impellers were manufactured as first process application together with SICcast Mineralguss GmbH and Düchting Pumpen GmbH.
Such ceramic pumps are primarily applied for processing technically demanding media, such as corrosive chemicals or suspensions highly enriched with abrasive particles at very high temperatures. Other potential applications are nozzles, mills, burners and large-scale structural components for high-precision applications in the optical industry.
From October 20 to 23 you will meet IKTS researchers in Hall B1 on CERAMIC APPLI-CATIONS Booth 219/320.
Katrin Schwarz | Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Making lightweight construction suitable for series production
24.04.2017 | Laser Zentrum Hannover e.V.
It Takes Two: Structuring Metal Surfaces Efficiently with Lasers
15.03.2017 | Fraunhofer-Institut für Lasertechnik ILT
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...
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...
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...
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...
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...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences