asteroza + alloy   105

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 
march 2019 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 
march 2019 by asteroza
Exergyn®
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 
march 2019 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
IFEs batteriforskere har knekt batteri-kode: Kan revolusjonere rekkevidde og levetid — IFE
SiliconX, aka IFE silicon alloy, a silicon nanoparticle composite, might be a future battery anode
batery  anode  materials  science  research  technology  SiliconX  silicon  nanoparticle  composite  IFE  alloy 
july 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
High-Strength Nanotwinned Al Alloys with 9R Phase - Li - 2018 - Advanced Materials - Wiley Online Library
Interesting, but it's all in the nano grain and crystal phase, and they seem to only have made thin films of the stuff so far.
metallurgy  aluminum  alloy  materials  science  research  technology 
january 2018 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
Habitat - Best Chef Knife, Knasa Chef Knife, Kitchen Cutlery
Licensed LiquidDiamond knife (liquidmetal edge bonding to steel knife), which is itself a licensee of LiquidMetal.
liquidmetal  amorphous  metal  alloy  edge  kitchen  cooking  knife  Delicious 
november 2016 by asteroza
Home - Liquid Diamond Cutlery & Kitchen Products
Knife using liquidmetal amorphous metal alloy bonded edging on a conventional steel knife. Very high hardness with improved durability, stays sharp longer than conventional knives.
liquidmetal  amorphous  metal  alloy  bonded  edge  kitchen  knife  utsensil  cooking  Delicious 
november 2016 by asteroza
Ironclad beetles inspire new 'memory' metal suspension for military vehicles | B...
Uh, but memory metal shapes can be reset due to heat. If an IFV takes an IED hit, won't the heat from the explosion mangle the suspension into the broken shape?
memory  metal  suspension  automotive  technology  military  shape  alloy 
november 2016 by asteroza
Extreme creep resistance in a microstructurally stable nanocrystalline alloy : N...
8 orders of magnitude better creep resistance than other nanocrystalline alloys, but nanocrystalline alloys are 4 mangitudes worse than coarse grained alloys, so net is 4 orders of magnitude better...
metal  materials  science  research  nanocrystalline  alloy  copper  tantalum  pinned  grain  boundary  Delicious 
october 2016 by asteroza
High hardness in the biocompatible intermetallic compound β-Ti3Au | Science Adva...
Apparently very high temperature prepared titanium gold alloy has a beta crystal type that is tremendously hard.
beta  crystal  titanium  gold  metal  alloy  high  hardness  materials  science  research  technology  Delicious 
july 2016 by asteroza
Study and research news | Universität des Saarlandes
Interesting alternative medium for thermal wheel heat exchangers, using shape memory alloy fibers, which have a convenient property of mild stress causing them to heat up.
rotary  adiabatic  thermal  enthalpy  wheel  heat  exchanger  shape  memory  alloy  metal  fiber  store  cooling  research  technology  Delicious 
february 2016 by asteroza
A high-specific-strength and corrosion-resistant magnesium alloy : Nature Materials : Nature Publishing Group
Interesting, very low weight MgLi alloy, that if heat treated, can create surface conditions similar to stainless steel to create a protective surface barrier. Makes magnesium alloys suitable for saltwater environments now.
stainless  magnesium  lithium  alloy  materials  science  research  technology  corrosion  resistance  lightweight  Delicious 
november 2015 by asteroza
Ultralow-fatigue shape memory alloy films
Sounds like they are reexamining NT alloys for long term fatigue characterization.
low  fatigue  titanium  nickel  metal  shape  memory  alloy  metallurgy  materials  science  research  technology  nitinol 
june 2015 by asteroza
Dense dislocation arrays embedded in grain boundaries for high-performance bulk thermoelectrics
Squeezing a liquid metal laden alloy/crystal grain mix during sintering produces zT = 2.1 thermoelectric bulk alloys.
dislocation  array  suqeezed  crystal  grain  boundary  thermoelectric  bulk  metal  alloy  manufacturing  production  materials  science  research  technology  Delicious 
april 2015 by asteroza
Empa - Shape Memory Alloys - A shape-conscious alloy
Low temp iron based SMA's make SMA reinforced prestressed concrete beams practical, which can be prestressed without elaborate tensioning systems. The only issue is the 160 degree transition temperature means if such a beam ever got exposed to a vehicle fire, it might fail faster than conventional prestressed concrete using steel rebar...
iron  manganese  silicon  SMA  shape  memory  alloy  metal  materials  science  research  technology  prestressed  concrete  tension  rebar  alternative  construction  building  architecture  Delicious 
june 2014 by asteroza
Neutron Absorber Material | Holtec International
New nanoparticle based metal matrix composite basket for spent fuel rods, with such high thermal conductivity that spent fuel can be stuffed into a dry cask after only 3 years in a cooling pond.
Metamic  Metamic-HT  high  temperature  aluminum  boron  carbide  metal  matrix  composite  neutron  absorber  spent  fuel  rod  basket  dry  cask  waste  storage  nuclear  materials  science  research  technology  nanotechnology  powder  metallurgy  nanoparticle  alumina  alloy  dispersoid  Delicious 
december 2013 by asteroza
3D printing tungsten » The Unwanted Blog
Interesting comment about using 3D printing to create specialty engineered alloys, specifically silver impregnated tungsten for better heat conductivity internally to avoid localized melting on tungsten rocket nozzle throats. In this application, it wouldn't be a conventional casted alloy, nor would it be a gradient mixed/poured alloy either, but perhaps a design specific 3D spacial gradient? Or would you be doing the design equivalent of embedding a heat pipe of sorts in the tungsten for short range directed heat transfer?
technology  alloy  silver  EU  printing  space  research  ESA  propulsion  AMAZE  tungsten  metal  rocket  infusion  3D  throat  fabbing  insert  nozzle  Delicious 
october 2013 by asteroza
Taylor & Francis Online :: Ultrastrong Mg Alloy via Nano-spaced Stacking Faults - Materials Research Letters -
Using conventional hot rolling techniques, researchers introduced nano layered stacking faults in the crystalline structure of magnesium alloy metals, increasing specific strength beyond steel by isolating crystal defects.
magnesium  technology  specific  rolled  strength  alloy  defect  crystal  fault  research  science  materials  isolation  metal  stacking  hot  high  structured  nanotechnology  Delicious 
march 2013 by asteroza
ESA Portal - Hypergravity helping aircraft fly further
Interesting use of high gravity centrifuges rather than high pressure press forges to cast advanced superalloys.
strength  lightweight  ESA  alloy  superalloy  aluminide  titanium  research  technology  metallurgy  science  materials  casting  metal  hypergravity  pressure  gravity  high  Delicious 
november 2012 by asteroza
C17510 Beryllium Copper Alloy | IBC Advanced Alloys
Apparently touted as a high performance, easier to use alternative to traditional tool steels and can be used for molding dies.
technology  research  science  materials  alloy  metal  copper  beryllium  Delicious 
august 2012 by asteroza
Beryllium Aluminum (BeAl) Alloys | Beralcast Alloys from IBC Advanced Alloys
Apparently being touted as a potential substitute for titanium while being as workable as aluminum.
Beralcast  beryllium  aluminum  alloy  metal  materials  science  research  technology  alternative  titanium  Delicious 
august 2012 by asteroza
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