asteroza + metal   368

Material for New-Generation Atomic Reactors Developed in NUST MISIS
New steel-vanadium-steel layered composite might be good for nuclear reactor fuel rod tubes
russia  nuclear  fuel  rod  radiation  heat  resistant  steel  vanadium  composite  alloy  metal  metallurgy  materials  science  research  technology 
4 weeks ago by asteroza
Saarbrücken research team uses artificial muscles to develop an air conditioner for the future | Universität des Saarlandes
Using nitinol shape memory alloys as the thermal medium/matrix in a thermal wheel rotary air heat exchanger, where the wheel itself is the HVAC system!
rotary  heat  exchanger  thermal  wheel  air  entropy  nitinol  shape  memory  alloy  metal  conditioner  heater  HVAC  mechanical  materials  science  research  technology  cooling  heating 
6 weeks ago by asteroza
Power generator using cycling waste heat hot water/cooling water to drive a shape memory alloy wire actuator piston, which drives a hydraulic transmission and power generator. Made a discovery for high cycle ninitol alloy (10 million versus 1 million cycles for regular NT wire) to make the linear actuator work for industrial applications. Uses direct impingement of hot water and cold water to cycle the actuator though...
nitinol  shape  memory  metal  alloy  materials  science  research  technology  wasteheat  power  generator  linear  actuator  piston  hydraulic  transmission  drive  scavenging  harvesting  high  cycle  fatigue  resistance 
6 weeks ago by asteroza
OSA | Laser coloration of metals in visual art and design
Some sort of way of using a single laser to multicolor metal coloring using not just classic laser oxidation or periodic grating, but also some sort of subwavelength nanoparticle surface treatment
laser  oxidation  periodic  grating  subwavelength  nanoparticle  surface  treament  metal  coloring  color  materials  science  research  technology 
8 weeks ago by asteroza
Joining gun bonds metal and plastic within seconds
Adheasiveless, rivetless joining of plastic and metal, by laser etching tiny holes at the joint position in the metal, fast melting the plastic into the holes, then cooling the plastic so that it grabs the holes.
plastic  metal  bond  joint  Fraunhofer  materials  science  manufacturing  research 
10 weeks ago by asteroza
The TRISO pebbles are immobilized inside the thick walls of a graphite tube with graphite powder, but one would worry about TRISO pebble shifting/settling within the powder area.
india  thorium  lead  bismuth  liquid  metal  coolant  eutectic  TRISO  fuel  pebble  nuclear  reactor 
december 2018 by asteroza
A multicaloric cooling cycle that exploits thermal hysteresis | Nature Materials
Uses a ring of shape memory alloy, and magnets plus compression rollers to enable a 6 stage cooling system.
shape  memory  metal  alloy  giant  magnetocaloric  refridgeration  cooling  materials  science  research  technology  permanent  magnet 
september 2018 by asteroza
Cr-Mo-V-W: A new refractory and transition metal high-entropy alloy system - ScienceDirect
Chromium, Tungsten, Rhenium plus other bits metal alloy calculated to melt at 3044K. Possibly usable for molten salt nuclear reactors.
high  entropy  metal  alloy  materials  science  research  technology  temperature  refractory  computational  chemistry 
september 2018 by asteroza
Strengthening effect of single-atomic-layer graphene in metal–graphene nanolayered composites | Nature Communications
Graphene/metal composites now suck less, as in wow that's a huge improvement for a very small amount of doping the parent metal
graphene  metal  composite  materials  science  research  technology  nanotechnology  copper  nickel  CVD  sandwich  multilayer 
september 2018 by asteroza
Homepage | Digital Alloys
resistance heating mixed wires for fast printing, similar to EBAM
metal  3D  printing  fabbing  printer  fabber  resistance  heating  wire 
september 2018 by asteroza
github/glb-director: GitHub Load Balancer Director and supporting tooling.
bare metal load balancer software, uses rendezvous hashing to deal with fill/draining proxy pool
bare  metal  load  balancer  software  networking  loadbalancing  opensource  github  rendezvous  hashing  DPDK 
august 2018 by asteroza
Oxidation and Creep Resistant Nickel Alloy | QuesTek Innovations LLC
Allegedly the special Iconel alloy SpaceX will use in their Raptor engines, powdered so suitable for 3D printing.
single  crystal  nickel  superalloy  metallurgy  alloy  metal  3D  printing  fabbing  inconel  materials  science  research  technology  SpaceX  space  rocket  engine  raptor 
june 2018 by asteroza
Every Silver Lining Has a Cloud - ACM Queue
"Some providers now have something called Metal-as-a-Service, which I really think ought to mean that an '80s metal band shows up at your office, plays a gig, smashes the furniture, and urinates on the carpet, but alas, it's just the cloud providers' way of finally admitting that cloud computing isn't really the right answer for all applications."
humor  bare  metal  MaaS  cloud  performance  server 
june 2018 by asteroza
Titomic - Industrial Scale Additive Manufacturing, 3D Printing, Titanium, Innovative, Melbourne, Australia
Using supersonic metal particle sprays to get get powder fusion via kinetic impact, not too far from older metal cold spraying techniques. Not using bulk heating so less likely to have warped parts from SLS/SLM methods. Doing aerospace grade titanium, with an ITAR compliance area as well?
Australia  3D  printing  fabbing  manufacturing  printer  fabber  metal  powder  supersonic  cold  spray  coating 
may 2018 by asteroza
Non‐Volatile Silicon Photonics Using Nanoscale Flash Memory Technology - Grajower - - Laser & Photonics Reviews - Wiley Online Library
MONOS allows using conventional NAND flash CMOS manufacturing techniques to yield potentially terahertz speed circuits. Heat is probably still a problem, but this may make chip internal optics easier, as well the mentioned filter/switch/modulator/resonater/laser optics applications
metal  oxide  nitride  silicon  semiconductor  terahertz  IC  circuit  research  technology  manufacturing  optics  optonics  photonics  photonic  materials  science 
march 2018 by asteroza
A metal-organic framework with ultrahigh glass-forming ability | Science Advances
Metal organic transparent glass, with similar atomic structure to silicon dioxide but more formable
ZIF-62  metal  organic  glass  materials  science  research  Technology 
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
Faradaically selective membrane for liquid metal displacement batteries | Nature Energy
Sadoway has a new variant of the liquid metal battery, a liquid displacement metal mesh battery. Some sort of porous membrane in the center?
Sadoway  liquid  displacement  metal  mesh  battery  energy  storage  materials  science  research  technology  porous  membrane 
february 2018 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
Tailoring crystallization phases in metallic glass nanorods via nucleus starvation | Nature Communications
Making metallic glass nanorod crystals so small they don't have a proper crystal nucleus yields interesting properties
metallic  glass  nanorod  crystal  nucleus  starvation  metal  metallurgy  materials  science  research  technology 
december 2017 by asteroza
Displate | Make Your Home Awesome
If you ever wanted a steel plate poster...
steel  plate  poster  art  gift  metal 
november 2017 by asteroza
Pure lead cooled (not eutectic) uranium oxide reactor design, using new aluminum coating for the coolant systems
Sweden  uranium  oxide  lead  cooled  nuclear  reactor  power  generator  materials  science  research  technology  aluminum  surface  coating  metal  corrosion  resistance 
november 2017 by asteroza
Superelastic Tire
But don't most shape memory alloys (nickel titanium based) have a critical temperature where they change memory?
NASA  shape  memory  alloy  chainmail  compliant  flexible  metal  nickel  titanium  tire  wheel  space  technology  automotive  research 
november 2017 by asteroza
Self-organization of helium precipitates into elongated channels within metal nanolayers | Science Advances
Strange helium movement in nanocomposite metals, instead of independent bubbles, they form up and start tunneling sideways into vascular networks within nanocomposite layers
metal  nanocomposite  helium  migration  precipitation  materials  science  nuclear  research  technology 
november 2017 by asteroza
Tough SF: Liquid Rhenium Solar Thermal Rocket
Interesting solar thermal concept using a liquid primary heat receiver. Needs some work on the solar window end of the barrel design.
space  solar  thermal  propulsion  liquid  metal  heat  receiver 
october 2017 by asteroza
Ai Iijima
One woman blacksmith shop out in Chiba doing metalwork
art  metal  metalwork  blacksmith  custom  jewelry  chiba  japan 
october 2017 by asteroza
Interesting work on casted metal heat exchangers, which may be cheaper/easier to manufacture than PCHE's for some requirements. Investment casting is simpler, and new fancypants 3D printing of sand cores at high resolution may improve surface finish of the mold.
cast  metal  heat  exchanger  CMHE  PCHE  airfoil  finned  fin  curve  materials  science  research  technology 
september 2017 by asteroza
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