Image icon  "Brick-and-Mortar" Microstructure of Alumina/PMMA Hybrid Ceramic

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Description: This image shows the "brick-and-mortar" microstructure of the alumina/polymethylmethacrylate (PMMA) hybrid. In this phase aragonite "bricks" slide past each other to dissipate strain energy while the polymer "mortar" acts as a lubricant. Through the controlled freezing of suspensions in water of an aluminum oxide (alumina) and the addition of a well known polymer PMMA, a ceramic has been produced that is 300 times tougher than its constituent components.
Keywords: ceramic • polymethylmethacrylate • PMMA • aluminum oxide • alumina • mother of pearl • toughness • freeze-casting technology • microstructure • porosity • "brick-and-mortar"
Categories: Science approaches > Structure, bonding & defects
Science approaches > Microstructure
Materials > Ceramics & glasses
Materials > Ceramics & glasses > Technical ceramics > Alumina
Materials > Hybrids
Materials > Polymers & elastomers > Plastics > Thermoplastics > Polymethyl methacrylate (Acrylic, PMMA)
Properties > Electrical, magnetic & optical
Testing, analysis & experimentation
Scale > Nano(-materials)
Created by: Lawrence Berkeley National Laboratory, US Department of Energy
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Date created: 04 December 2008
Date added: 17 October 2011
Resource ID: 3752