Mechanical Properties of Alumina Foam/Tri-Functional Epoxy Resin Composites with an Interpenetrating Network Structure / Właściwości Mechaniczne Kompozytów Pianka Korundowa/ Trójfunkcyjna Żywica Epoksydowa O Strukturze Infiltrowanej

Open access

Methods of measuring effective material properties, including Young’s, Kirchoff’s modulus or Poisson’s ratio for composites with an interpenetrating network structure, where the both constituent phases have widely different physical properties, do not lead to an unambiguous interpretation. The commonly- known static methods have the basic disadvantage that higher strain values are needed in order to obtain proper results which is generally impossible to achieve in the case of brittle materials, e. g. ceramics or polymers, as well as for composites created by connecting both these components. The measurement of strain values during the stress test, decreases the values of Young’s modulus from several per cent to several dozen per cent, due to appearance of micro fractures in the brittle materials. If there are differences in the values, then a special form and an appropriate amount of samples are needed. Dynamic methods of predicting an effective material properties (ultrasonic and impulse excitation of vibration techniques) are much more accurate, and their non- destructive nature mean that the samples can be used again in other experiments.

This paper uses the traditional compression test and ultrasonic and impulse excitation of vibration methods to compare and analyze the experimental material properties, such as Young’s modulus, Kirchoff’s modulus and Poisson’s ratio using alumina foam/tri-functional epoxy resin composites with an interpenetrating network structure.

[1] A.A. Wereszczak, R.H. Kraft, J.J. Swab, Flexural and torsional resonances of ceramic tiles via impulse excitation of vibration, Metals and Ceramics Research Branch, U.S. Army Research Labolatory.

[2] R.C. Bradt, A.N. Scott, Elastic properties of refractories: their roles in characterization, Refractories Applications and News, 3, 2007,

[3] S. Tognana, W. Salgueiro, A. Somoza, A. Marzocca, Measurement of the Young’s modulus in particulate epoxy composites using the impulse excitation technique, Mater. Sci. Eng. A 527 (2010).

[4] R.R. Atri, K.S. Ravichandran, S.K. Jha, Elastic properties of in-situ processed Ti-TiB composites measured by impulse excitation of vibration, Mater. Sci. Eng. A 271 (1999).

[5] J. Podwórny, A. Wrona, Nieniszczące metody badań materiałów ogniotrwałych i perspektywy ich rozwoju, [w:] Materiały ogniotrwałe w metalurgii, wytwarzanie, metody badań, zastosowanie. Materiały XI Międzynarodowej Konferencji Hutniczej, pod red. J. Czechowskiego, J. Wojsy, Polskie Towarzystwo Ceramiczne, Kraków 2005.

[6] J.M. Gómez de Salazar, M.I. Barrena, G. Morales, L. Matesanz, N. Merino, Compression strength and wear resistance of ceramic foams-polymer composites, Materials Letters, 60, (2006).

[7] M. Potoczek, Gelcasting of alumina foams using agarose solutions, Ceramics International, 34, (2008).

[8] ASTM E494 - Standard Practice for measuring Ultrasonic Velocity in Materials. Annual Book of ASTM Standards, 3.03, American Society for Testing and Materials, West Conshohocken, PA, 2000.

[9] ASTM C 1259-01 - Standard test method for dynamic Young’s modulus, Shear modulus and Poisson’s ratio for advanced ceramics by impulse excitation of vibration. Annual Book of ASTM Standards, 15.01, American Society for Testing and Materials, West Conshohocken, PA, 2001.

Archives of Metallurgy and Materials

The Journal of Institute of Metallurgy and Materials Science and Commitee on Metallurgy of Polish Academy of Sciences

Journal Information


IMPACT FACTOR 2016: 0.571
5-year IMPACT FACTOR: 0.776

CiteScore 2016: 0.85

SCImago Journal Rank (SJR) 2016: 0.347
Source Normalized Impact per Paper (SNIP) 2016: 0.740

Metrics

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 149 149 11
PDF Downloads 56 56 13