High-damping and high-rigidity composites of Al2TiO 5-MgTi2O5 ceramics and acrylic resin

T. Shimazu, H. Maeda, E. H. Ishida, M. Miura, N. Isu, A. Ichikawa, K. Ota

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


High-damping materials are widely used in engineering fields. In order to increase the precision of vibration control to different levels, high-damping materials with high-rigidity are required. This study attempts to develop a new high-damping high-rigidity material using ductile ceramics based on the Al 2TiO5-MgTi2O5 system, which has many continuous microcracks along the grain boundaries. Ductile ceramics have high internal friction (Q -1 = 0.01-0.037), but very low rigidity (<10 GPa). The rigidity of Al2TiO5-MgTi2O 5 ceramics was improved by combining them with a polymer such as acrylic resin. The Young's modulus and internal friction of the composites of Al2TiO5-MgTi2O5 ceramics and acrylic resin are investigated. They show high-damping capacity (Q -1 = 0.03-0.04) with high rigidity (E = 50-60 GPa), and their properties depend on those of the polymer. Thus, the composites fabricated using the above method can serve as high-damping high-rigidity materials.

Original languageEnglish
Pages (from-to)93-101
Number of pages9
JournalJournal of Materials Science
Issue number1
Publication statusPublished - 2009 Jan

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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