asteroza + fiber   242

Graphene Spun into Meter-Long Fibers - Scientific American
So graphene oxide liquid crystals were dried out to make meters long (but imperfect) fibers which are weaker than normal carbon fiber, but have great conductivity. Has this been commercialized into low weight electrical wire yet?
graphene  oxide  liquid  crystal  fiber  manufacturing  materials  science  research  technology 
14 hours ago by asteroza
Concentrated Solar Photovoltaics provide both electricity and heat.
Last pic has a split hybrid CSP system, with visible spectrum PV with an IR reflector, feeding IR to a fiber line for use elsewhere in a high temp electrolysis cell.
hybrid  CSP  PV  thermal  IR  fiber  optic  transfer  power  generator  solar  high  temperature  electrolysis  hydrogen  gas  production  syngas  CO2  cracking 
4 weeks ago by asteroza
In-Space Manufacturing - Kleos Space S.A.
Some sort of in space 3D printing of carbon fiber composites?
newspace  3D  printing  fabbing  space  structure  carbon  fiber 
october 2018 by asteroza
Recombinant Spidroins Fully Replicate Primary Mechanical Properties of Natural Spider Silk - Biomacromolecules (ACS Publications)
So they got bacteria to build silk proteins with are almost twice as long as real spider silk proteins, thus the doubled protein is now a near match in performance to true spider silk fiber (true spider silk fiber benefits from good protein design and spinner design though). They seem to think it should be possible to use the fusing method to build even longer proteins to up the strength.
biomimicry  bacteria  GMO  spider  silk  protein  fiber  manufacturing  materials  science  research  technology  synthetic  biology 
august 2018 by asteroza
VeloSled cargo bike - the lightest and toughest yet
Sure, the single sidearm is a bit of design wank, but still kinda interesting and looks a bit like a dogsled
cargo  bike  bicycle  Bakfiets  vehicle  transportation  electric  belt  drive  carbon  fiber 
august 2018 by asteroza
Twisting cracks in Bouligand structures - ScienceDirect
Mantis shrimp clubs have a spiral fiber layer pattern that resists crack propagation
materials  science  research  technology  composite  fiber  helical  helicoidal  pattern  layer  crack  propagation  resistance  biomimicry 
june 2018 by asteroza
Solar Thermal Propulsion for Small Spacecraft - Engineering System Development and Evaluation
Using fiber optics to simplify the arrangement between a solar concentrator rig and the actual solar thermal thruster
smallsat  small  spacecraft  space  propulsion  CSP  fiber  optic  solar  thermal  thruster  decoupled 
april 2018 by asteroza
Basically stripping lignin from trees to make an aligned fiber channel nannocellulose nanowood material, with anisotropic insulation properties. This spinout is marketing the stuff. Weird uses include blackening a top surface of an aligned block and floating it on a water surface, as a concentrated solar power receiver to make steam by capillary action through the aligned fibers.
insulation  insulator  materials  science  research  technology  wood  nanowood  nanocellulose  anisotropic  aligned  fiber  channel 
march 2018 by asteroza
Enhancing Mechanical Properties of Pervious Concrete Using Carbon Fiber Composite Reinforcement | Journal of Materials in Civil Engineering | Vol 30, No 3
permeable concrete normally sucks, but throwing ground up waste carbon fiber into it makes it strong enough for actual usage, particularly for road/ground cover where you want rain water to pass though into the ground reasonably quickly, rather than collecting pollution then ending up in storm sewers..
permeable  porous  carbon  fiber  reinforced  concrete  materials  science  research  technology  recycling  water  management  building  construction 
march 2018 by asteroza
CTS Slabs
interesting honeycomb design here, with huge area brazed tube welds, and rockwool stuffing for insulation
china  broad  group  core  tube  slab  honeycomb  brazed  welding  steel  metal  rockwool  rock  wool  basalt  fiber 
february 2018 by asteroza
Processing bulk natural wood into a high-performance structural material | Nature
So boiling wood in a sodium hydroxide/sulfide slurry to remove liglin and hemicellulose, then hot pressing the remains makes superwood that is as strong as steel due to densification of highly aligned cellulose nanofibers. Hot pressing also allows forming a final shape for engineered wood products.
materials  science  research  technology  aligned  nanofiber  cellulose  nanocellulose  fiber  densification  wood  superwood 
february 2018 by asteroza
Ultrafine fibers have exceptional strength | MIT News
High strength and high toughness, rare combo, might be better than kevlar or dyneema
MIT  gel  spinning  electrospinning  polyethylene  fiber  nanofiber  textile  manufacturing  materials  science  research  technology 
january 2018 by asteroza
OSA | Monolithic ultra-high-Q lithium niobate microring resonator
so lithium niobate makes for great resonators for fiber optic networks, but is chemically inert so you can't etch it easily. Now, it looks like they've achieved usable dry plasma etching to make waveguides/resonators.
lithium  niobate  fiber  optic  resonator  waveguide  optics  plasma  dry  etching  materials  science  research  technology 
january 2018 by asteroza
Industry sees new opportunities for space manufacturing -
ZBLAN fiber optic manufacturing demos on ISS shortly. This is big, because at current ZBLAN pricing, if the orbital manufacturing is viable, it can justify a Bigelow 330 space station and 6 flights a year of SpaceX Dragon to ferry ingots up and fiber down, as a real closing business case.
ISS  space  manufacturing  ZBLAN  fiber  optic 
december 2017 by asteroza
Fiber Optics Manufacturing in Space (FOMS) - Research on StationResearch on Station
This is a ZBLAN fiber production test run after the MadeInSpace experiment
ISS  space  manufacturing  ZBLAN  fiber  optic 
december 2017 by asteroza
Lamera AB Sweden - Home of Hybrix� -------------------------------------------------------------------------------------- - Home
Some sort of oddball hollow metal sandwich composite, using internal fibers to maintain standoff distances rather than fixed divider plates in a traditional honeycomb panel. This allows forming complex curved panels after production.
hollow  fiber  metal  composite  sandwich  materials  science  research  technology  sheet  panel  low  weight  lightweight 
december 2017 by asteroza
Interesting design, uses what looks like deployable carbon fiber tubes (which are built up from a tape deployer style?) to extend the focal length so the small primary isn't as big of an issue (1m GSD!)
newspace  space  telescope  cubesat  12U  deployable  secondary  mirror  carbon  fiber  tape  tube  earth  observation  surveillance  remote  sensing 
november 2017 by asteroza
acoustic sensing with iDAS™ - intelligent Distributed Acoustic Sensor
Jebus, this thing is using rayleigh scattering at scale to turn an entire length of fiber optic into a mic...
fiber  optic  cable  microphone  rayleigh  scattering  backscatter  mic  audio  recording  sensor  surveillance 
november 2017 by asteroza
Building for the future with KARL MAYER | Karl Mayer
Using warp knit weft insertion carbon fiber for low weight concrete
warp  knit  weft  insertion  fabric  grid  carbon  fiber  concrete  low  weight  lightweight  composite  textile 
november 2017 by asteroza
Harvesting electrical energy from carbon nanotube yarn twist | Science
twisted nanotube yarn submerged in an electrolyte operates like a variable area supercapacitor, usable as an energy harvestor
twistiron  carbon  nanotube  CNT  yarn  power  generator  kinetic  energy  harvestor  scavenger  harvesting  scavenging  supercapacitor  fiber  stretching 
august 2017 by asteroza
ademakov/MainMemory: Wannabe Main Memory Database and More
similar to redis event library, but multithreaded/fibered, as an alternative to libev/libuv. Right now, a skeleton multithreaded framework that does minimal memcache interface though, but the skeleton seems complete
multithreaded  fiber  event  library  memory  database  opensource  software  memcached 
july 2017 by asteroza
Velcro®-Inspired SiC Fuzzy Fibers for Aerospace Applications - ACS Applied Mater...
Coating silicon carbide fibers with fuzzy silicon carbide nanotubes/nanowire like a velco surface of fuzzy fibers improves composite ceramic performance in high heat applications.
silicon  carbide  nanotube  nanofiber  reinforced  composite  ceramic  materials  science  research  technology  velcro  surface  treatment  fiber  fuzzy  Delicious 
march 2017 by asteroza
Some sort of water activated epoxy prepreg fiber wrap as an alternative to duct tape
prepreg  epoxy  fiber  wrap  wrapping  rapir  tape  duct  Delicious 
february 2017 by asteroza
US Navy Synthetically Recreates Biomaterial to Assist Military Personnel
Using e.coli to bulk manufacture hagfish slime proteins, which form as compressed nanothreads that expand into a large area mesh, with properties similar to kevlar.
synthetic  hagfish  slime  biomimicry  protein  thread  network  mesh  expandible  materials  science  research  technology  e.coli  fiber  nanothread  nanofiber  Delicious 
january 2017 by asteroza
Biomimetic spinning of artificial spider silk from a chimeric minispidroin : Nat...
successful artificial spinneret for using artificial spider silk proteins mass produced by e.coli bacteria, using similar pressure/acidity change method as actual spider spinnerets
biomimicry  artifical  spinneret  e.coli  bacteria  spider  silk  materials  science  research  technology  manufacturing  fiber  protein  Delicious 
january 2017 by asteroza
Production of Flexible Transparent Conducting Films of Self-Fused Nanowires via ...
Launching silver nanowire suspension water out of a supersonic nozzle at a specific speed allows creating a transparent thin film mat on a surface, that fuses/evaporates on impact. The resulting thin film is transparent, conductive, and stretchable.
fused  silver  nanowire  fiber  mesh  mat  conducting  conductive  stretchable  transparent  thin  film  manufacturing  materials  science  research  technology  surface  treatment  impact  fuzing  Delicious 
november 2016 by asteroza
MIT technology used to shrink tumor | MIT News
Omniguide is producing high power laser fiber guides for IR lasers, for use in medical applications, using advanced hollow fibers with the hollow core coated by the new omnidirectional mirrors described here.
CO2  IR  laser  fiber  tunable  mirror  reflector  omnidirectional  materials  science  research  technology  Delicious 
november 2016 by asteroza
Self-powered textile for wearable electronics by hybridizing fiber-shaped nanoge...
Interesting hybrid fabric, made up 3 kinds of fibers/thread: dye sensitized solar cells, triboelectric electrostatic generators, and supercaps.
triboelectric  electrostatic  power  generator  dye  sensitized  solar  cell  supercapacitor  capacitor  hybrid  fabric  fiber  textile  materials  science  research  technology  wearable  energy  storage  Delicious 
october 2016 by asteroza
Feeding Single-Walled Carbon Nanotubes or Graphene to Silkworms for Reinforced S...
Hrm, so it didn't kill the silkworms or degrade their output too much? I thought nanotubes are the new asbestos because of cell wall interactions...
biocomposite  graphene  CNT  carbon  nanotube  silkworm  silk  fiber  production  manufacturing  compsite  materials  science  research  technology  biology  nanotechnology  Delicious 
october 2016 by asteroza
Projects | Made In Space
Manufacturing ZBLAN optical fiber in space appears to be potentially fantastically profitable, enough to justify launching a Bigelow BA330 and 6 SpaceX Dragon flights per year.
space  manufacturing  ZBLAN  optical  fiber  production  microgravity  3D  printing  fabbing  printer  fabber  zeroG  Delicious 
august 2016 by asteroza
OSA | Luminescent detector for free-space optical communication
Facebook improving fresspace lasercomm receivers by doping optical waveguides with frequency shifter dyes to catch scintillation diffracted laser light for a wide field of view.
scintillation  effect  compensation  flourescence  flourescent  dye  doping  luminescent  concentrator  optical  fiber  wave  guide  waveguide  detector  large  FoV  optics  materials  science  research  technology  facebook  freespace  laser  communications  lasercomm  receiver  Delicious 
july 2016 by asteroza
Impossible Objects
Sort of like old school copper foil diffusion bonding to make 3D objects, this prints carbon fiber sheets that are heat/pressure bonded into a complete part.
3D  printer  fabber  PEEK  CBAM  carbon  fiber  diffusion  bonding  materials  science  research  technology  manufacturing  polyetheretherketone  Delicious 
july 2016 by asteroza
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