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Materials & Crystals Data Base Knowledge on AWG (Wire Gauge Specification)
Click here to see table Click here to see table
Knowledge on Crystal Growth Knowledge on Thin Film
The development of Crystal Growth Technology (pdf)  -- Hans J. Scheel, Chairman of IOCG (Excellent review on Crystal growth history and future)
How to make Thin Film by dip coating
How to deposit thin film by thermo-evaporation
Knowledge on Furnace Knowledge on Film Growth
Metric Conversions
Conversion of pressure unit

Conversion of moisture/humidity
Conversion of temperature unit

Electric power around the world
AC power plugs and sockets around the world (wiki)
The different types of AC power connectors in North America (pdf)

Knowledge on Nano Sample Preparation Technique

How to Disperse Nanoparticles / Nanopowders

How to disperse nanoparticles / nanopowders (nanomaterials)? How to disperse nano-materials and mix with other powder?

Disperse nanoparticles: 1) If used in the aqueous phase, may use ultrasonic treatment to disperse; 2) If used in the oil phase, may use high shear mixing instrument to disperse. 3) If directly used as dry powder form, may use ball mill treatment to disperse.  

How to disperse nano-materials and mix with other powder? There is no specific method of the world. It is still a research topic. In general, if one nanomaterial will be mixed with other powder (for example, your ceramic powder), the first step is to put the nanomaterial into water or ethanol in the high-speed mixing instrument, add 1% dodecyl benzene sulfonate (detergent main ingredients), Instantly after mixing, then put the dispersed nanomaterial into the other powder (your ceramic powder) and continue to mix by still using high-speed mixing instrument, stirring rate the higher the better, time the longer the better as well, and then heating the mixed liquid material to be evaporated completely.

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