asteroza + diamond   33

Huawei Sting Offers Rare Glimpse of U.S. Targeting Chinese Giant - Bloomberg
The article kinda lightly brushed over this, but where is Huawei/it's associates getting a 100KW laser for such destructive testing?
diamond  thin  film  coating  industrial  espionage  Huawei 
february 2019 by asteroza
Diamonds could have the power to recharge drones in flight
Some sort of laser power beaming, using diamond cooled LED lasers?
diamond  cooling  LED  laser  wireless  power  beaming  WPT  transfer 
december 2018 by asteroza
In situ tribochemical formation of self-lubricating diamond-like carbon films - ScienceDirect
So rubbing palladium-gold alloys in teh presence of carbon containing stuff makes very slippery diamond-like carbon films without an expensive plasma furnace, and might be suitable for mass production use
palladium  gold  nanoparticle  amorphous  diamond  carbon  film  nanocomposite  lubricant  materials  science  research  technology  tribochemical  production  process 
august 2018 by asteroza
High power density nuclear battery prototype based on diamond Schottky diodes - ScienceDirect
High density, but needs nickel-63. The diamond energy conversion cells may be usable for carbon-14 use as well however.
betavoltaic  nickel-63  isotope  nuclear  battery  energy  storage  power  generator  russia  diamond  converter  conversion  cell  materials  science  research  technology 
june 2018 by asteroza
Continuous-wave room-temperature diamond maser | Nature
A step up from that organic crystal maser, which was materials limited to pulse ops
room  temperature  continuous  wave  maser  materials  science  research  technology  physics  optics  oscillator  diamond  laser  pumped  defect  vacancy 
april 2018 by asteroza
Technology - Akash Systems
Using CVD diamond substrates to better extract heat from GaN RF amplifiers to improve performance, as an alternative to GaN-SiC.
diamond  substrate  GaN  RF  power  amplifier  hardware  electronics  devices  space  technology  research  CVD 
july 2017 by asteroza
Macroscale superlubricity enabled by graphene nanoscroll formation
So right now this only works with amorphous diamond surfaces, but couple this with that diamond bearing coating that was recently announced, and you might have something good here.
diamond  nanoparticle  encapsulation  nanoscroll  roll  ball  low  friciton  materials  science  research  technology  nanotechnology  graphene  Delicious 
june 2015 by asteroza
Video: Diamond-like coatings save fuel
20 micrometer thick tetrahedral amorphous carbon coatings (ta-c) laid down with a pulse laser arc yield diamond surface coatings. Suitable for bearings, but doesn't diamond burn?
tetrahedral  amorphous  carbon  surface  coatingmaterials  science  research  technology  laser  arc  deposition  diamond  Delicious 
june 2015 by asteroza
AKHAN Technologies, Inc.
Possible alternative to silicon carbide or gallium nitride based IGBT's?
diamond  semiconductor  high  voltage  materials  science  research  technology  electronics  IGBT  Delicious 
november 2014 by asteroza
Benzene-derived carbon nanothreads : Nature Materials : Nature Publishing Group
So the interesting question is, will this beat carbon nanotubes for high tensile applications or not? Say, using a woven sheet of diamond nanothread, packed inside a graphene wrapper? Space Elevator guys will love this...
carbon  nanomaterial  nanothread  materials  science  research  technology  nanotechnology  diamond  thread  fiber  nanofiber  textile  Delicious 
september 2014 by asteroza
Printing artificial bone - MIT News Office
Based on the internal hierarchical structure of bone/nacre, the research suggests a internal diamond scaling pattern may improve over classical biomimicry for strength and deformation resistance. Which may have defense applications in body armor.
defense  scale  technology  armor  synthetic  printing  research  biomimicry  composite  science  layered  nacre  pattern  materials  bone  diamond  3D  fabbing  artificial  Delicious 
july 2013 by asteroza
1209.4993v1.pdf (application/pdf Object)
Possible to use ultrashort pulse lasers to manipulate refractive indexes in something like diamond, such that you create artificial event horizons and a resonant cavity, allowing the replication of a resonant cavity between black/white hole event horizons. While this is theoretical, based on certain models, the proposed methodology appears to be feasible for experimentation now, using grown artificial diamond waveguides as an experiment start point.
optical  black  white  hole  blackhole  whitehole  laser  optics  physics  research  refraction  index  zero-frequency  zero  frequency  resonant  cavity  artificial  event  horizon  pulse  diamond  Delicious 
september 2012 by asteroza
Brennan Research Group
Using diamond shaped pyramid nanostructure surface patterns, one can inhibit bacterial growth. applications include medical item sterility, and ship antifouling coatings.
Gator  Sharkote  ship  hull  antifouling  Sharklet  diamond  pyramid  nanostructure  nanopattern  surface  treatment  coating  antibacterial  health  medicine  Delicious 
september 2011 by asteroza
STANFORD Magazine: SAGE > Q&A
20 KWh per carat? Interesting statistics regarding synthetic diamond versus natural diamond regarding CO2 emissions and whatnot. Though, carat size synthetic diamonds are not common...
synthetic  diamond  CO2  emissions  green  ecosystem  impact  cost  Delicious 
july 2010 by asteroza
GT | Heat-Transfer Material Could Allow More Powerful Radar Electronics
Potentially high performance heat transfer material using a diamond/copper composite matrix heatpipe
materials  science  research  high  thermal  conductivity  diamond  copper  composite  foam  heatsink  heatpipe  management  Delicious 
july 2009 by asteroza
'Diamond LED' Can Be Used at 400 Deg C -- Tech-On!
The efficiency wouldn't be great, but I wonder if you could use this as a form of energy conversion to drive a reaction? Specifically, use solar power in the visible spectrum to power the UV LED to drive a UV photoelectrochemical catalyst cell to crack CO2 into CO and oxygen?
diamond  deep  UV  LED  materials  science  research  technology  high  temperature  japan  AIST  Delicious 
march 2009 by asteroza

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