asteroza + foam   93

Low‐Energy Room‐Temperature Healing of Cellular Metals - Hsain - - Advanced Functional Materials - Wiley Online Library
self healing metal form, of a sort, that uses an electrolyte and a donor electrode to electroplate the broken metal foam structure in-situ
self  healing  metal  foam  materials  science  research  technology  biomimicry  electroplating 
5 weeks ago by asteroza
gel-e life sciences
new biopolymer based injectable foam to control/stop internal bleeding
medicine  health  research  technology  internal  bleeding  biopolymer  foam 
july 2019 by asteroza
Contactless steam generation and superheating under one sun illumination | Nature Communications
Okay, it's cheating to say one sun when using a concentrator, but switch from direct contact heat transfer with capillary flow to IR emitter and vapor passthru is interesting
carbon  foam  solar  heat  absorber  IR  thermal  emitter  steam  generator  passive  materials  science  research  technology 
december 2018 by asteroza
The new technology for porous material production | EurekAlert! Science News
New aluminum foam sandwich, monolithic too so possible alternative to conventional aluminum honeycomb composites maybe
materials  science  research  technology  aluminum  foam  sandwich  porous  structure  metal  metallurgy 
july 2017 by asteroza
Argonne technology puts solar power to work all night long | Argonne National La...
Graphite foam pores holding phase change salt for thermal storage improve thermal transfer for thermal storage. For steam turbine linkage, use magnesium chloride, for higher temperature SCO2 turbines use sodium chloride.
graphite  foam  porous  structure  thermal  storage  CSP  solar  energy  SCO2  cycle  phase  change  PCM  salt  materials  science  research  technology  Delicious 
october 2016 by asteroza
Steam generation under one sun enabled by a floating structure with thermal conc...
Weird hybrid of a thermal concentrating foam, an IR transparent selective absorber cover, and clear bubble wrap cover to prevent heat leakage above the cover.
steam  generator  thermal  foam  bubble  wrap  concentration  solar  selective  absorber  Delicious 
august 2016 by asteroza
Composite 3D-printed metastructures for low-frequency and broadband vibration ab...
Making rocket payload launch shrouds out of engineered foam metastructures to integrate sound absorption.
3D  printing  fabbing  engineered  foam  metastructure  structure  sound  absorber  launch  payload  shroud  cover  rocket  space  materials  science  research  technology  Delicious 
august 2016 by asteroza
Multifunctional Stiff Carbon Foam Derived from Bread - ACS Applied Materials & I...
Carbon foams made from bread, where tuning the yeast tunes the pore size of the bread, tuning the resulting foam pore size. Also has higher fire resistance. Wonder if sourdough makes a difference...
porous  carbon  foam  manufacturing  materials  science  research  tunable  pore  size  bread  Delicious 
july 2016 by asteroza
Attenuation efficiency of X-ray and comparison to gamma ray and neutrons in composite metal foams
Wonder what the secondary radiation from hits on the tungsten balls is like for high energy radiation?
tungsten  sphere  stainless  steel  metal  foam  radiation  materials  science  research  technology  shield  shielding  Delicious 
july 2015 by asteroza
Armor Applications
Interesting hollow silicon carbide ceramic shells impregnating metal to create metal foam armor.
low  weight  lightweight  syntactic  armor  plate  silicon  carbide  ceramic  hollow  shell  sphere  defense  military  research  technology  metal  foam  Delicious 
november 2014 by asteroza
layfomm | eBay
Can apparently make memory foam objects with this Layfomm filament.
3D  printing  fabbing  viscoelastic  soft  rubber  memory  foam  filament  Delicious 
october 2014 by asteroza
Preparation of energy storage material derived from a used cigarette filter for a supercapacitor electrode - Abstract - Nanotechnology - IOPscience
So it seems that used cigarette butts reduced via pyrolysis to a dense carbon foam doped with nitrogen,beat commercial carbon used for supercaps and possibly going toe-to-toe with CNT/graphene.
nitrogen  doped  mesoporous  microporous  hybrid  carbon  materials  science  research  technology  porous  supercapacitor  capacitor  structure  NCF  pyrolysis  cellulose  acetate  fiber  foam  sponge  cigarette  butt  filter  Delicious 
august 2014 by asteroza
Steam from the sun
So at 10x solar concentration, the surface cover composite sheet composed of the graphite flake thermal absorber/boiler coupled to an underlying buoyant porous carbon air foam, creates steam pretty well. I assume the insulating factor of the carbon air foam reflects more heat into the boiler region to improve efficiency, rather than letting heat travel through and warm the bulk water.
graphite  flake  porous  structure  carbon  foam  buoyancy  buoyant  composite  steam  generator  solar  thermal  green  energy  concentrator  concentrating  Delicious 
july 2014 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
NC State News :: NC State News and Information » New Metallic Bubble Wrap Offers Big Benefits Over Other Protective Materials
Basically a very specific variant of metal foams (using large single bubbles), you can make stiff structures without a bulk material, and the bubble aspect is more controllable rather than a normal bulk foamed structure.
wrap  manufacturing  bubblewrap  structure  technology  research  composite  science  bubble  materials  metal  metallic  lightweight  foam  Delicious 
july 2013 by asteroza
UCSD Jacobs School of Engineering
Apparently Toucan birds have a highly mechanically optimized beak. Very lightweight, with a hollow structure where there are no stresses, and elsewhere a bone fiber/membrane foam enclosed by an outer keratin tile sheet exterior, creating a natural biocomposite foam sandwich material in their beaks. Still doesn't explain fully why the beaks are so large, especially for a fruit eater. There was other research into beak properties by using IR camera studies, and it appears the beak is also used as a high performance controllable blood heat radiator to dump metabolic heat. They do interesting tricks like doing a burst of heat dumping just prior to going to sleep to slow down metabolic processes quicker.
core  hollow  lightweight  beak  large  bird  Toucan  sandwich  exterior  tile  keratin  foam  bone  composite  biocomposite  engineering  mechanical  research  structure  body  animal  Delicious 
december 2012 by asteroza
Floating Island Southeast
Interesting artificial bioremediation platform, using recycled plastic and foam to make essentially hydroponic mounts for plants, which free float in lake or river water. The plants pierce the matting, with roots dangling below, offering bioremediation of local water.
BioHaven  artificial  island  platform  plant  mount  bioremediation  plastic  foam  recycling  Delicious 
september 2012 by asteroza
ULTRAMET - Advanced Materials Solutions
Apparently involved with a new high temp noise suppression foam made from hafnium carbide/silicon carbide that ca be stuffed directly into a combustor to provide combustion noise suppression. The foam has high permeability, allowing gases and combustion to move freely, and the structure helps to create uniform combustion. Though I can't imagine this being useful for any high speed gas /liquid fuel combustors/engines, but the press releases talked about jet engines so maybe it actually can?
metal  ceramic  foam  high  temperature  noise  suppression  materials  science  research  technology  heat  exchanger  rhenium  solar  thermal  rocket  propulsion  space  thruster  Delicious 
may 2012 by asteroza
Sumitomo Electric Industries, Ltd. | Press Release (2011) Development of Porous Aluminum “Aluminum-Celmet”
I wonder if they chose Celmet as the trademark name, due to the classic R/L differentiation problem, and that cermet is a generic industry term for ceramic metal composites and thus isn't trademarkable...
Sumitomo  aluminum  celmet  materials  science  research  technology  high  porosity  electrode  metal  foam  Delicious 
july 2011 by asteroza
Porous Aluminum Developed to Triple Li-ion Battery Capacity -- Tech-On!
Interesting new materials research from Japan to up electrode performance for batteries and capacitors
Sumitomo  japan  materials  science  research  aluminum  celmet  electrode  high  porosity  porous  metal  foam  low  resistance  corrosion  resistant  Delicious 
june 2011 by asteroza
Radiator Graphite-Foam.pdf (application/pdf Object)
Interesting concept for using airfoil pressure differential to force air through a heat exchanger embedded in the rear third of an airfoil, while having low frontal drag area. As noted in the PDF, for vehicle applications there will still be a need for an auxiliary fan when stopped, which likely means the airfoil will still be in the engine bay or embedded in the hood to utilize the forced air fan.
Open  pore  porous  high  thermal  conductivity  graphitic  graphite  foam  lightweight  radiator  heat  exchanger  hardware  research  control  materials  science  technology  filetype:pdf  media:document  Delicious 
may 2011 by asteroza
Seems like they incorporated something similar to that d3o shear thickening liquid layer body armor directly into urethane foam that can be molded into protection products like sports gear and laptop covers.
PORON  XRD  urethane  open  cell  cellular  foam  impact  shock  protection  material  breathable  armor  defense  shield  Delicious 
may 2011 by asteroza
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