11 Questions 41 Answers 0 Followers
Questions related from Ng Kei Hoa
I am facing a very serious problem in dealing with powder preparation for a few months. Existing ZCorp gypsum powder ZP102 and ZP130 are meant for prototype therefore it is not suitable to make...
20 May 2014 644 1 View
I came across research papers regarding microwave sintering processes on ceramics, typically hydroxyapatite, and it contributes to smaller grain size and higher fracture toughness. Referring to a...
04 May 2014 7,096 6 View
Powder's hydrophilicity is important when it interacts with the binder for 3D printing application. At my best knowledge, hydrophilicity is normally determined by contact angle. But how about...
08 April 2014 4,315 2 View
Generally, most papers regarding HAP, sintered at a relatively high temperature, say that it will induce bigger grain size and reduce the hardness. While the relatively high temperature will...
18 March 2014 2,658 10 View
Layer thickness and saturation level (binder/ volume ratio) parameter appeared mostly on all journals that I've read. However, I am not sure what is saturation level is all about. Anyone can...
18 February 2014 9,838 3 View
Hydroxyapatite is brittle and it's not suitable for load bearing applications. Other than biphase or triphase calcium phosphate, changing conventional sintering to microwave sintering, is there...
17 February 2014 7,449 18 View
As I read, HAP has osteoconductivity where it can initiate bone growth to form mechanical bonding with the surrounding tissues. About osteoinductivity, it has something to do with the protein,...
28 January 2014 741 7 View
If there are at least 4-5 factors to consider, there will be too many samples. I have read something about 2k factorial level design, and some researchers used to screen out the important factors.
21 January 2014 2,927 16 View
These two terminology have been used widely in many research. So, what is the difference between RP and AM? since both also uses addtive material and RP machine.
07 January 2014 8,146 22 View
I think I need biological explanation on how it interacts to grow bones. I think it maybe have to do with some ion exchange in HAP that initiates the osteoconduction process. Anyone having the idea?
23 November 2013 2,762 11 View
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?
22 December 2012 4,425 2 View
