asteroza + titanium   76

Ceramic–metal composites for heat exchangers in concentrated solar power plants | Nature
New hybrid ceramic for use in heat exchangers. Start with a titanium carbide porous block, immerse in a copper and zirconium bath. The zirconium infiltrates the ceramic and displaces titanium in the carbide, while the titanium migrates into the open pores. Copper ends up being a thin film sealant.
supercritical  CO2  heat  exchanger  PCHE  materials  science  research  technology  titanium  carbide  zirconium  copper 
october 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
Harvesting Hydrogen Gas from Air Pollutants with an Unbiased Gas Phase Photoelec...
Uses light, air, and organic pollutants to create hydrogen gas and clean the air apparently. Works better without oxygen, but does work with ambient air and light only.
photoelectrochemical  cell  titanium  oxide  photoanode  hydrogen  gas  production  light  solar  green  energy  air  pollution  synfuel  Delicious 
may 2017 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
Solar photothermochemical alkane reverse combustion
So high light/pressure/temperature reactor with TiO2 catalyst does a one step conversion of water and CO2 to liquid hydrocarbons.
liquid  hydrocarbon  synfuel  production  photothermochemical  tandem  photochemical  thermochemical  photocatalytic  photocatalyst  alkane  reverse  combustion  UV  light  heat  pressure  titanium  dioxoide  catalyst  water  CO2  cracking  materials  science  research  technology  solar  synthetic  fuel  Delicious 
february 2016 by asteroza
First metal 3D printed bicycle frame manufactured by Renishaw for Empire Cycles
Not a monolithic titanium frame though, probably because the build volume of the metal printer is limited
3D  printing  fabbing  titanium  bike  bicycle  frame  Delicious 
february 2016 by asteroza
Z3Dlab |
Interesting zirconia infused titanium powder ceramic composite for 3D printing
france  EU  titanium  zirconia  powder  composite  ceramic  3D  printing  fabbing  manufacturing  materials  science  research  technology  Delicious 
september 2015 by asteroza
High-rate aluminium yolk-shell nanoparticle anode for Li-ion battery with long cycle life and ultrahigh capacity : Nature Communications : Nature Publishing Group
Interesting trick of using an alumina oxide nanoparticle, converting the outer layer to titanium oxide, and thus creating a nanoparticle anode with a squishy center that can handle expansion stress from battery cycling.
nanocomposite  nanoparticle  titanium  oxide  shell  aluminum  yolk  materials  science  research  technology  nanotechnology  high  performance  battery  anode  Delicious 
august 2015 by asteroza
Thermoelectric Power Generation from Lanthanum Strontium Titanium Oxide at Room Temperature through the Addition of Graphene - ACS Applied Materials & Interfaces (ACS Publications)
Interesting, graphene doping the sintering powder reduced thermal conductivity but increased electrical conductivity. 2 watts/m2 at room temperature is nothing to sneeze at neither.
lanthanum  strontium  titanium  oxide  titanate  graphene  thermoelectric  power  generator  materials  science  research  technology  composite  nanocomposite  room  temperature  Delicious 
august 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
Low Cost Titanium Powder Production
Using a fluidized bed with arc jets to use atomic hydrogen to process titanium tetrachloride into titanium powder directly, cheaper than the Kroll process.
MAFBR  fluidized  bed  arc  reactor  titanium  tetrachloride  metal  chloride  powder  production  processing  materials  science  research  technology  atomic  hydrogen  reaction  Delicious 
february 2015 by asteroza
European Space Agency Awards €500k for New Cold Spray 3D Printing Technology
Interesting, using cold helium to increase the speed of sound of the neutral carrier gas for a metal powder spray, so it uses impact bonding rather than some kind of laser heating.
3D  printing  fabbing  manufacturing  technique  supersonic  titanium  particle  powder  cold  spray  coating  helium  carrier  gas  metal  Delicious 
january 2015 by asteroza
New adidas apparel lowers your temperature and raises your game
New Climachill range of t-shirts with titanium fibers and aluminum spheres to increase heat conductivity for a better cooling effect. I think the spheres might also be doing a tenting effect to increase effective evaporative cooling rates as well.
Adidas  t-shirt  clothing  apparel  cooling  titanium  yarn  fabric  sphere  Delicious 
april 2014 by asteroza
Revolutionary 3D printing
WAAM seems to be a titanium wire fed arc welder type 3D metal printer.
3D  printing  fabbing  printer  fabber  research  aerospace  WAAM  wire  arc  welder  additive  manufacturing  metal  titanium  Delicious 
march 2014 by asteroza
Welcome to Metalysis
Making a new low cost titanium powder for 3D printers, should bring the cost of titanium printed parts down a bit.
low  cost  titanium  metal  powder  3D  printing  fabbing  materials  science  research  technology  production  manufacturing  ingredients  Delicious 
december 2013 by asteroza
A regenerable oxide-based H2S adsorbent with nanofibrous morphology : Nature Nanotechnology : Nature Publishing Group
Possible new absorbent that might allow sulfur removal from natural gas or coal/biomass derived syngas without a cooling/liquid step (which normally complicates the process and introduces energy inefficiencies). This would make coal or biomass based syngas much more appealing, especially for advanced syngas combustion cycles that allow for easier carbon capture.
removal  sulphur  sulfer  biogas  syngas  nanotechnology  technology  research  science  materials  fiber  nanostructure  area  surface  reactivity  high  filtering  cleaning  processing  gas  sorbent  mat  nanofiber  oxide  titanium  zinc  adsorbent  H2S  sulfide  hydrogen  Delicious 
december 2012 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
XG Sciences - Home
Seems to be doing research with ORNL to make a titanium/graphene composite with improved thermal conductivity and strength properties over conventional titanium alloys, using a powdered metal metallurgy process.
multifunctional  strength  conductivity  thermal  ORNL  metallurgy  powdered  nanotechnology  technology  research  science  materials  composite  metal  nanoplatelet  graphene  titanium  Delicious 
november 2012 by asteroza
News - The Research Council of Norway
Using an extruded filament method, they build up titanium parts, like making a clay pot from rolled tubes of clay (when you don't have a turning table to make a regular pot). Similar to traditional extruder 3D printers, but it isn't a full melt/fusion type. It might be more akin to the concrete contour crafting tricks. Thermally it might be easier than traditional 3D metal printers, which use a metal powder buildup with sintering, when they are otherwise not directly melting/fusing via laser. Are these parts as good as traditional heavy press closed die forgings though?
3D  printer  coil  tube  wire  fillament  buildup  method  technique  metallurgy  manufacturing  production  technology  research  contour  crafting  titanium  metal  Delicious 
september 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
Iowa Powder Atomization Technologies in running for "America's Next Top Energy Innovator" | Ames Laboratory
New low power/cost method of making metal powders. Titanium in particularly, it can be made for 10% of the cost of traditional methods.
titanium  technology  manufacturing  research  production  powder  metal  atomization  gas  Delicious 
april 2012 by asteroza
Keystone - Synergistic Eterprises, Inc.
Apparently have a good friction stir welding tools now for doing very long titanium welds. Navy is investigating using it to build marine grade titanium structural components for predominantly titanium ships, such as the T-craft prototypes.
friction  stir  welding  titanium  materials  science  production  manufacturing  research  technology  USN  navy  military  ship  construction  T-craft  Delicious 
april 2012 by asteroza
GS Astuto - The Ascent Starts Here!
Seems they do custom titanium and carbon fiber frames but will they do stuff that isn't a traditional fixie/racing frame...
titanium  fiber  carbon  custom  racing  fixie  shop  bicycle  bike  tokyo  japan  Delicious 
february 2012 by asteroza
Site temporarily closed
Seems Cermetica is working on advanced high temperature titanium diboride ceramic coatings for the purpose of an advanced wankel derivative motor with high efficiency. Seems to be a continuation of research by Katherine Logan and Robert Wisner.
Cermetica  high  temperature  ceramic  titanium  diboride  materials  science  research  technology  wankel  ICE  engine  motor  efficiency  propulsion  Delicious 
october 2009 by asteroza
Access : Superinsulator and quantum synchronization : Nature
superinsulator shells protecting superconducting wires could improve electrical transmission systems, may have applications in battery/capacitor technology for energy storage as an alternative to or upgrade/addon to SMES
green  energy  superconductor  film  electricity  thin  titanium  nitride  superinsulator  Delicious 
march 2009 by asteroza

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