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BERTOLLA, L. DLOUHÝ, I. ŘEHOŘEK, L. CHLUP, Z.
Original Title
Tensile properties of open cell ceramic foams
Type
journal article - other
Language
English
Original Abstract
Full understanding of response of highly porous (cellular) ceramic foams to different mechanical loadingconditions is important because of their potential use in industry, medical and other applications. A new technique for testing tensile strength of ceramic foam materials has been developed and first knowledge is described in the paper. Testing procedure consists of fixation of ceramic foam into aluminium pots by suitable adhesive. Alumina based ceramic foam material produced by Lanik (CZ) was used for the test methodology development. Samples were produced by polyurethane foam replication technique. Foams having 10 and 60 pores per linear inch (PPI) were tested. Basic fractographic analysis was carried out by scanning electron microscopy (SEM) to get corresponding figure about specimen behaviour during tensile loading. Influence of increasing PPI (decreasing cell size) on tensile strength of specimens was experimentally proven. With increasing PPI the tensile strength decreases. Slight dependence of tensile strength on sample size of examined material was observed in the range of the tested specimen dimensions. PDLLA-coated samples were alsoproduced and tested, exhibiting nearly 10 times higher tensile strength.
Keywords
tension test, cellular materials, ceramics
Authors
BERTOLLA, L.; DLOUHÝ, I.; ŘEHOŘEK, L.; CHLUP, Z.
RIV year
2013
Released
23. 3. 2013
Publisher
Hutnícka fakullta Technickej univerzity v Košiciach a SAV Košice
Location
Košice
ISBN
1338-1660
Periodical
Acta metalurgica slovaca
Year of study
2013(3)
Number
1
State
Slovak Republic
Pages from
106
Pages to
113
Pages count
8
BibTex
@article{BUT101125, author="Luca {Bertolla} and Ivo {Dlouhý} and Lukáš {Řehořek} and Zdeněk {Chlup}", title="Tensile properties of open cell ceramic foams", journal="Acta metalurgica slovaca", year="2013", volume="2013(3)", number="1", pages="106--113", issn="1338-1660" }