asteroza + microstructure   24

Additively manufactured hierarchical stainless steels with high strength and ductility : Nature Materials : Nature Research
hierarchically heterogeneous microstructure stainless steal via 3D cellular structures seems to be better than bulk stainless. Made using a conventional laser powderbed fusion 3D printer.
3D  printing  fabbing  materials  science  research  technology  stainless  steel  hierarchical  structure  microstructure  metallurgy  ceullar 
november 2017 by asteroza
Material heterogeneity in cancellous bone promotes deformation recovery after mechanical failure
So soft surface but brittle interior type bones seem to guide cracks into structurally insensitive areas to maintain strength under failure/deformation.
biomimicry  cancellous  bone  structure  microstructure  failure  crack  propagation  suppression  Delicious 
march 2016 by asteroza
Monolithic graded-refractive-index glass-based antireflective coatings: broadband/omnidirectional light harvesting and self-cleaning characteristics - Journal of Materials Chemistry C (RSC Publishing)
So, new surface coating technique that uses nanostructures to achieve a superhydrophobic effect, rather than polymer or powder surface coating, that is also much more abrasion resistant. Also conveniently antireflective.
materials  scienceresearch  technology  nanotechnology  nanostructure  superhydrophobic  hydrophobic  surface  coating  microstructure  antireflective  Delicious 
may 2015 by asteroza
High-strength cellular ceramic composites with 3D microarchitecture
Research into 3D printed microstructure honeycombs/truss, which get plated with alumina to make tremendously strong but light materials. Uses a german NanoScribe for the 3D printing.
3D  printing  fabbing  cellular  honeycomb  structure  microstructure  materials  science  research  technology  biomimicry  technical  foam  laser  lithography  microtruss  truss  ceramic  polymer  alumina  composite  Delicious 
february 2014 by asteroza
http://www.bainitesteel.com/
Claiming a new processing style for bainitic steels yields a new microstructure substantially improving the properties of steel to the point that it outperforms some aluminum and titanium alloys at substantially lower cost. Also, at the time of discovery, it was 7% stronger than any other steel alloy and could be made in 10 seconds of treatment.
defense  flash  technology  strength  microstructure  armor  metallurgy  BHSS  steel  bainite  research  military  science  materials  metal  bainitic  high  4130  Delicious 
june 2011 by asteroza

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