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  • Users: JimMetalsCeramics
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  1. JimMetalsCeramics

    Orbit Temperature

    An astronaut leaves the Space Shuttle and space walks 20 yards away from it. The temperature surrounding him/her, independent of his/her space suit or body temperatures is what???
  2. JimMetalsCeramics

    "Discoloration" in high purity Al2O3

    Are you sure it's alumina? Mullite is ivory in color.
  3. JimMetalsCeramics

    Orbit Temperature

    Again. An astronaut steps out of the Shuttle. The temperature of space two feet in front of them is what??
  4. JimMetalsCeramics

    Orbit Temperature

    You're saying that stronauts are space-walking around in 4K areas?
  5. JimMetalsCeramics

    Orbit Temperature

    You walk outside the shuttle and put a thermometer in space. What does it read?
  6. JimMetalsCeramics

    Titanium -Ceramic Joint

    You braze titanium to alumina by placing any Ag-Cu braze alloy in between and heating in argon or vacuum to approx. 900C.
  7. JimMetalsCeramics

    Orbit Temperature

    What is the typical temperature outside the Space Shuttle when it is in orbit?
  8. JimMetalsCeramics

    Titanium

    Can anyone please give me examples of components and systems that NASA uses titanium alloys for?
  9. JimMetalsCeramics

    Titanium

    Can anyone please give me examples of components and systems that NASA uses titanium alloys for?
  10. JimMetalsCeramics

    Looking for nonwoven carbon / carbon foam

    Graphites vary widely in thermal conductivity. I believe Poco Graphite has a high conductivity foam.
  11. JimMetalsCeramics

    Electrowinning??

    Can anyone please explain to me the electrowinning process? Can it be used to manufacture parts?
  12. JimMetalsCeramics

    Shuttle Disaster

    I like CusterWilson's manner of engineering investigation.
  13. JimMetalsCeramics

    Carbon felt.

    I heard that there is a particular non-woven carbon felt which is carbon infiltrated to make aircraft brakes. Does anyone know who makes the felt?
  14. JimMetalsCeramics

    Flux Pinning Centers

    Can anyone please explain to me how pinning centers work in superconductors?
  15. JimMetalsCeramics

    Carbon-Carbon

    Does anyone have fracture toughness values for carbon-carbon composite?
  16. JimMetalsCeramics

    Shuttle Disaster

    Falling debris may have caused the pivotal damage on Columbia (I don't understand how such large relative velocity was generated so quickly, though). But there is a widespread problem that the pre-launch, launch and in-flight loads were inarguably, severely undercalculated. Any avoidance of this...
  17. JimMetalsCeramics

    Recent development in nano-material study

    I meant Cabot Corp. http://www.cabot-corp.com/cws/businesses.nsf/CWSID/cwsBUS01022003035100PM471?OpenDocument
  18. JimMetalsCeramics

    Shuttle Disaster

    If you post your email, I'll send you a current copy of the paper.
  19. JimMetalsCeramics

    Microwave Sintering

    I need a U. S. university.
  20. JimMetalsCeramics

    Metals strengthened by cryogenic treatment?

    Cryogenic treatment is of benefit to steel for specific metallurgical reasons. I had actually heard some anecdotal comments that strangely enough the process also showed benefit for carbide tooling. But you should ask a company doing that work.

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