Hms awareness


Download 458 b.
Sana01.04.2018
Hajmi458 b.



HMS awareness



Know what you handling.

  • Know what you handling.

    • MSDS
  • Protect your self and others around you.

  • If an accident occurs, know how to respond.



Get the local HMS instructions from



Be sure that you can safely dispose of the waste product before you start.

  • Be sure that you can safely dispose of the waste product before you start.

  • Be sure you have the ‘antidote’ at hand.

  • Never work alone in the specimen-preparation laboratory.

  • Always wear safety glasses when preparing specimens and/or full protective clothing, including face masks and gloves, if so advised by the safety manual.



Cyanide solutions:



Ductile/fragile

  • Ductile/fragile

  • Bulk/surface/powder

  • Insulating/conducting

  • Heat resistant

  • Irradiation resistant

  • Single phase/multi phase

  • Can mechanical damage be tolerated?

  • Can chemical changes be accepted?

  • Etc, etc…….





Self supporting disk





Crushing

  • Crushing

  • Cutting

    • saw, “diamond” pen, ultrasonic drill, FIB
  • Mechanical thinning

  • Electrochemical thinning

  • Ion milling

  • Coating

  • Replica methods

  • FIB

  • Etc.



Cutting/cleaving

  • Cutting/cleaving

    • Ductile material or not?


Si

  • Si

  • GaAs

  • NaCl

  • MgO



Cutting/cleaving

  • Cutting/cleaving

    • Ductile material or not?
  • Grinding

    • 100-200 μm thick
    • polish
  • Cut the 3mm disc





Cutting

  • Cutting

    • Ductile material or not?
  • Grinding

    • 100-200 μm thick
    • polish
  • Cut the 3mm disc

  • Prethinning

    • Dimpling
    • Tripod polishing






Cutting

  • Cutting

    • Ductile material or not?
  • Grinding

    • 100-200 μm thick
    • polish
  • Cut the 3mm disc

  • Prethinning

  • Final thinning



Electropolishing

  • Electropolishing

  • Ionmilling













Top view

  • Top view





Electropolishing

  • Electropolishing

    • The window method
  • Ultramicrotomy

  • Crushing

  • Replication and extraction

  • Cleaving and SACT

  • The 90o wedge

  • Lithography

  • Preferensial chemical etching



























TEM holders

  • TEM holders

  • ETEM holders

  • FIB

  • Replica methods

  • Etching

  • Plasma cleaning




Do'stlaringiz bilan baham:


Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2017
ma'muriyatiga murojaat qiling