Fraunhofer Center for High-Temperature Lightweight Construction

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Fraunhofer Center for High-Temperature Lightweight Construction
Category: research Institute
Carrier: Fraunhofer Society
Legal form of the carrier: Registered association
Seat of the wearer: Munich
Facility location: Bayreuth
Branch offices: Wurzburg, Münchberg
Type of research: Applied research
Areas of expertise: Natural sciences , materials science , materials technology , manufacturing and processing methods
Management: Friedrich Raether
Employee: 105 (as of December 31, 2017)
Homepage: www.htl.fraunhofer.de

www.htl-enertherm.eu

The Fraunhofer Center for High-Temperature Lightweight Construction (Fraunhofer Center HTL) deals with energy-efficient heating processes. It is based in Bayreuth and has additional locations in Würzburg and Münchberg . Organizationally, it belongs to the Fraunhofer Institute for Silicate Research in Würzburg and is part of the Fraunhofer Society for the Promotion of Applied Research e. V .

history

The institute was founded in 2012 with the aim of bundling the Fraunhofer ISC's ceramic research. Initially located in rented premises of Neue Material Bayreuth GmbH (NMB), a dedicated research building was opened in Bayreuth in 2015. In 2014, the Fraunhofer Application Center for Textile Fiber Ceramics TFK was founded in cooperation with Hof University . In 2019 the premises of the Fraunhofer Center HTL in Bayreuth were expanded to include a new fiber pilot plant.

Research areas

The HTL has two business fields: thermal process technology and Ceramic Matrix Composites (CMC). In the thermal process technology business area, high-temperature materials, high-temperature components and high-temperature measurement methods are developed and industrial heat treatment methods are optimized. In the CMC business area, the HTL has a closed production chain from fiber development through textile fiber processing to matrix structure to final processing and coating of CMC components. CMC are characterized by high operating temperatures, corrosion resistance and damage tolerance and are therefore used to improve high-temperature processes. In addition, processes such as 3D printing for the production of metal and ceramic components with complex geometries are available at the Fraunhofer Center HTL. To test high-temperature materials and to optimize their manufacturing processes, the Fraunhofer Center HTL develops Thermo-Optical Measuring Furnaces (TOM). Materials and components can also be characterized using various non-destructive, mechanical and thermal test methods.

Focus of work

materials

  • Material design: calculation of the application properties of multi-phase materials
  • Ceramics: Development of oxide, non-oxide and silicate ceramics along the entire manufacturing chain
  • Metal-ceramic composites: Development of metal components and composites
  • Ceramic fibers: Development of ceramic fibers from laboratory scale to pilot scale
  • Ceramic coatings: Development and characterization of liquid coating paints on behalf of customers and for sampling

Components

  • Component design: Design of components made of ceramics, metals or composite materials using finite element (FE) modeling
  • CMC components: Development and manufacture of CMC components using carbon, silicon carbide or oxide ceramic fibers
  • 3D printing: Production of prototypes and small series from ceramics, metals or metal-ceramic composites

Manufacturing processes

  • Textile technology: Development of textile processing methods for inorganic fibers including sampling
  • Heating processes: In-situ characterization of the behavior of solids and melts during the heating process and process optimization
  • Contract fires: Execution of test and contract fires in defined atmospheres

characterization

  • Material testing: Non-destructive, mechanical and thermal measurement of the composition, microstructure and application properties of materials
  • Thermo-optical measuring process (TOM): simulation of industrial heat treatment processes in the temperature range from room temperature to over 2000 ° C and in all relevant furnace atmospheres
  • Industrial furnace analysis: recording the energy balance as well as the temperature and atmosphere distribution in the production furnace

Infrastructure

Bayreuth location

At the Fraunhofer Center HTL in Bayreuth, 80 office workplaces are available on an area of ​​approx. 600 m². The technical center comprises 15 laboratories and halls on an area of ​​approx. 2000 m². Specialized technical systems are in use there. This includes:

  • Around 40 different industrial furnaces
  • Twelve thermo-optical measuring systems (TOM) specially developed at the HTL
  • Stereolithography printer for ceramic components
  • Powder bed printer for ceramics and metals
  • Equipment for CMC processing
  • Systems for non-destructive testing (computer tomography with a 225 kV and 450 kV radiation source, terahertz technology, ultrasound diagnostics, thermography)
  • Five-axis machining center
  • Laser sintering system

The fiber pilot plant opened at the Bayreuth location in 2019 increases the technical area of ​​the Fraunhofer Center HTL by approx. 1200 m² and is used for the production of ceramic reinforcement fibers and the development of new, high-temperature-resistant fiber types.

Würzburg location

In the premises of the parent institute Fraunhofer ISC in Würzburg, the HTL has 20 office workplaces, three laboratories and a technical center with an area of ​​630 m². The plants and spinning towers operated in Würzburg are used to develop ceramic fibers and ceramic coatings on a laboratory and pilot plant scale.

Münchberg site

On the grounds of the ifm Institute for Materials Science at Hof University, the Fraunhofer Center HTL has 14 office workplaces as well as four laboratories and four technical centers with an area of ​​over 5,500 m². A total of ten looms of different sizes and designs, a variable braiding machine, a double rapier weaving machine with single thread control and numerous systems for testing fibers, rovings and textiles are used.

Cooperations

  • Fraunhofer AdvanCer Alliance
  • Fraunhofer Energy Alliance
  • Fraunhofer Lightweight Construction Alliance
  • Fraunhofer Textile Alliance

Web links

Individual evidence

  1. htl.fraunhofer.de accessed on February 7, 2018
  2. Quality management: Fraunhofer Center HTL. Retrieved February 7, 2018 .
  3. Susanne Kuballa, Fraunhofer Center HTL: Press release on the opening in 2015. (PDF) Fraunhofer Center for High-Temperature Lightweight Construction HTL, July 28, 2015, accessed on February 7, 2018 .
  4. Susanne Kuballa, Fraunhofer Center HTL: New building for fiber pilot plant opened in Bayreuth. (PDF) Fraunhofer Center for High-Temperature Lightweight Construction HTL, April 12, 2019, accessed on November 21, 2019 .
  5. Overview: Fraunhofer Center HTL. Retrieved August 28, 2019 .
  6. Bayreuth location. Retrieved February 7, 2018 .
  7. ^ Location Wuerzburg. Retrieved February 7, 2018 .
  8. ^ Location Muenchberg. Retrieved February 7, 2018 .
  9. Fraunhofer-HTL - Center for High-Temperature Lightweight Construction. Retrieved February 7, 2018 .