heating element applications
TRANSCRIPT
F R A U N H O F E R I N S T I T U T E F O R M A N U F A C T U R I N G T E C H N O L O G Y
A N D A D VA N C E D M AT E R I A L S I F A M , B R A N C H L A B D R E S D E N
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MoSi2 COMPOSITES FOR HIGH-TEMPERATURE APPLICATIONS
Applications
• Heating elements (bar, pipe, susceptor)
• Components for heat exchangers in
corrosive environments
• Heat shields
• Reaction vessels
• Protective covering of thermocouples
• Crucibles, hot gas filtration
• Radiant plate
• High-temperature isolation components
• Parts for high-temperature mechanical
testing
Services
• Component development and
production
• Starting powders for further PM
processes (pressing, sintering, MIM, ...)
• Alloy development (e.g. with respect
to dispersion hardening and gradient
structures)
1 Assembly for high-temperature
bending test
2 SEM image MoSi2
3 Heating element
Fraunhofer Institute for
Manufacturing Technology
and Advanced Materials IFAM
Branch Lab Dresden
Winterbergstrasse 28
01277 Dresden I Germany
Contact
Dr.-Ing. Uwe Gaitzsch
Telefon +49 351 2537 430
Fax +49 351 2537 399
E-Mail: Uwe.Gaitzsch
@ifam-dd.fraunhofer.de
www.ifam-dd.fraunhofer.de
Advantages
• Production of MoSi2-X-composites
(X = SiC, TiB2, ZrO2, ...)
• Improvement of strength (σ4PB) and
fracture toughness (KIC)
• Lower sintering temperatures due to
powders with high sintering activity
• application temperatures up to 1700 °C
in oxidative and corrosive atmospheres
Products
• prototypical parts :
Dimensions:
Diameter: 5 - 165 mm
Length: up to 250 mm
• Powder:
sinter-active powders for silicide alloys
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Production of structural parts by
pressureless sintering
50 µm
2 3