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Influence of the Specimen Manufacturing Process on the Strength of Carbon‐Bonded Alumina (Al 2 O 3 –C)
Author(s) -
Zielke Henry,
Schmidt Anne,
Abendroth Martin,
Kuna Meinhard,
Aneziris Christos G.
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201700083
Subject(s) - materials science , composite material , ceramic , carbon fibers , characterization (materials science) , ball (mathematics) , filtration (mathematics) , composite number , nanotechnology , mathematical analysis , mathematics , statistics
Open cell ceramic foam filters are used for metal melt filtration to reduce non‐metallic inclusions. A new generation of multifunctional filters made of carbon‐bonded alumina is investigated within the Collaborative Research Center CRC 920. These filters have to withstand high thermal and mechanical loads. Motivated by the problem of the filters integrity, a mechanical characterization of the bulk material is necessary. In the Ball On Three Balls Test (B3B) miniaturized disk‐shaped specimens are loaded with a spherically tipped punch until failure occurs. With the help of the measured load displacement curve the fracture stress is calculated and analyzed by means of W EIBULL distribution.