Mechanical properties of borosilicate glass hollow particle reinforced epoxy matrix syntactic foams

Steven Eric Zeltmann, Nikhil Gupta, Brian Chen, William Ricci

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Syntactic foams are a class of lightweight composites synthesized by dispersing hollow particles (microballoons) in a matrix material. These materials have found extensive use in underwater oil exploration equipment and submarine structures due to their outstanding compressive properties and tailorable buoyancy. In the majority of present applications and existing studies, these foams are fabricated using microballoons composed of soda-lime glass. However, sodium ions can leach out of the glass particle and cause disintegration of the particle wall when such foams are exposed to moisture for prolonged periods, as in the current applications. This reduces the structural integrity of the foam and permits water to fill the voids in the composite. In this work, syntactic foams are fabricated using borosilicate glass particles, which do not show degradation upon moisture exposure. The fabricated syntactic foams are tested for compressive properties at quasi-static and high strain rates. The compressive strength was observed to increase with increasing wall thickness of microballoons and decreasing particle volume fraction. The compressive strength increased by up to 90% at high strain rates compared to quasi-static, but no strain rate sensitivity was observed in the range of 750-1750/s.

Original languageEnglish (US)
Title of host publicationSAMPE Baltimore 2015 Conference and Exhibition
PublisherSoc. for the Advancement of Material and Process Engineering
ISBN (Electronic)9781934551196
StatePublished - 2015
EventSAMPE Baltimore 2015 Conference and Exhibition - Baltimore, United States
Duration: May 18 2015May 21 2015

Publication series

NameInternational SAMPE Technical Conference


OtherSAMPE Baltimore 2015 Conference and Exhibition
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • General Materials Science


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