Ng Kei Hoa

3 Questions 34 Answers 0 Followers

Questions related from Ng Kei Hoa

How to prepare agglomerated powder sample for FESEM/SEM purpose?

It is very common for nano-size or fine powder to agglomerate due to moisture entrapment. I usually face problems regarding powder preparation for FESEM/SEM. Until the imaging process, I usually...

10 October 2014 5,997 4 View

How to determine amorphous content in a mixed powder?

A ceramic powder is mixed with polymeric binder. Since ceramic powder has the crystalline phase and polymeric binder (maybe is having amorphous phases). But my XRD results show no significant...

05 May 2014 5,789 26 View

Which central composite design CCD method in optimisation is better?

Anyone know where I can get the theory of this CCD for more understanding? Does anyone know what the meaning of rotatable and non-rotatable design?

12 December 2012 340 2 View