Sintered Ceramics & Metals
Sintered Ceramics & Metals Industrial furnaces for the heat treatment
of Solid Oxide Fuel Cells
Perfect product quality from pilot to
mass production furnace
Sintered Ceramics & Metals

Debinding and sintering of Solid Oxide Fuel Cells

Perfect product quality through temperature homogeneity
and atmosphere control

Solid Oxide Fuel Cells (SOFC) are an electrochemical conversion device. They are characterized by their use of a solid oxide as the electrolyte which’s crystal lattice allows for movement of oxide ions.
There are two distinct types of SOFC: Planar and tubular.

The green part is usually made by combining ceramic powder with organic binder and other liquid, and giving it its final shape, or applying it to some sort of carrier. They receive their typical properties after a debinding and sintering process at very high temperatures.

ONEJOON mastered the technology to control the firing curve and atmosphere required in the manufacturing of SOFCs. Our expert engineers are aware of the unique challenges faced in the manufacturing process and can help you deploy the right tools and equipment to face them. 

One of the biggest challenges in debinding SOFC is proper binder removal, as well as hot-spot and carbon deposit prevention. ONEJOON furnaces achieve this by controlling the homogeneous flow of process gasses through the furnace, kiln furniture and over the cells. 

Precise temperature control not only in the individual control zones, but in the entire feed, ensures highest product quality and process repeatability.  

ONEJOON validates and optimizes the kiln furniture, firing curves and process gas flow via CFD simulations. Our CFD simulation models are validated through real world measurements, tests and experiments in our test centers or on site, wherever possible. The gathered data is continuously applied assuring and improving the accuracy of our models and simulation results.

Processes

Debinding

In thermal debinding, the ceramic green body is heated and the binder is removed in the form of steam. This can be achieved by heating at ambient pressure in an oxidative or non-oxidative
atmosphere or in a vacuum. The process control during debinding is demanding. It requires an exact start at the required temperature, the controlling of chemical reactions in the product and a high temperature homogeneity. Thanks to a variety of furnace systems, ONEJOON can offer perfectly customized solutions.

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Sintering

There are many different sintering techniques and sintering processes, resulting in different properties of the sintered product. However, an end product with a reproducible and exactly defined microstructure is desired. The furnace technology is adapted by our engineers to your specific requirements and needs.

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Plant engineering

Our industrial furnaces for the production of thin-layer ceramics
and ceramic films

Lift Bottom Kiln

Perfect temperature homogeneity in the batch process

The Lift Bottom Kiln from ONEJOON delivers the best performance thanks to its

  • easy modularisation
  • highest temperature homogeneity
  • high-temperature sintering up to 1650 °C
  • Gas or electrical heating

A long list of references from the medical ceramics and automotive industries demonstrates the reliability and production safety of our lift bottom furnaces.

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Hubbodenoefen
Pusher Slab Furnace

The Best high temperature furnace from the technology leader

Why ONEJOON is the leader in pusher Slab Furnace technology 

  • Maximum furnace length over 40 m
  • High-temperature sintering up to over 2000 °C
  • Use of ceramic and metallic muffles
  • Aggressive, special or standard atmospheres

ONEJOON has successfully built pusher slab furnaces for almost all industries and products. New applications such as battery powder or thin-film ceramics are our latest flagship projects.

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Roller Hearth Furnace

Fast firing with ideal temperature control

Highlights of the ONEJOON roller hearth furnace                                             

  • Absolute gas-tight design
  • High temperature sluice for temperatures up to 1400 °C in continuous processes
  • Quick cooling, water cooling, indirect and direct process gas cooling
  • heated with gas, electric or hybrid

Thanks to our worldwide locations we deliver our roller furnaces to your production site quickely and reliably.

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Our services

Individual furnace systems for your thin-film ceramics and ceramic films

Just because every customer has special requirements

Together with you, we will work out the optimal solution for your thin-film ceramics. Worldwide.

  • selection of the suitable plant concept and furnace type
  • definition of the scope of delivery
  • design of the system based on your specification
  • configuration of the system from standardised components as well as customer-specific adaptations
  • presentation of the plant concept and Preparation of the offer
  • design and project management by our specialists
  • worldwide shipping
  • assembly, commissioning and acceptance of the plant at your location
  • management and supervision of the installation by German, American or Korean specialists
  • commissioning and process adjustment by our engineers for process engineering
  • preparation of the operating and maintenance instructions and the CE declaration of conformity
  • production support, if desired
  • services: plant maintenance, spare parts, repairs

We are looking forward to your request, contact us today!

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References

Our References

Satisfied customers - the best proof for successful and long-standing partnerships.

Debinding & sintering of thin-film ceramics

Dates & Facts

Customer: American manufacturer 
Product: thin-film ceramics
System: Roller Hearth Furnace 
Year of manufacture: 2020
Scope of delivery: Plant design, engineering, construction, construction, installation at the customer's site, commissioning, process support and process consulting

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Services
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Test Center
Development and optimisation of heat treatment processes read more
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CFD-Simulation
Sophisticated furnace solutions with the aid of CFD simulations read more
Heat treatment plants More than 120 years experience in industrial furnace construction
Jan-Phillip Schmiing Head of Business Segment USA +49 151 14 31 65 51 ceramics-metals@onejoon.de
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