14 Questions 41 Answers 0 Followers
Questions related from Son Thanh Nguyen
I'm looking for weight fraction of my ceramic-nickel composite by using XRD. In order to calculate the fraction using RIR method, I need to know the I/Ic ratio of nickel. However, in the database...
12 December 2014 9,421 3 View
I have worked with yttirum titanate, Y2Ti2O7, an oxide phase which is usually used to disperse in steel to strengthen its physical properties. Now I am searching for other phases such as Y2TiO5,...
27 February 2014 5,544 2 View
Maybe this is an odd question, but so far I don't understand why we have two standard methods for testing bending/flexural strength of fine ceramic, (3-points- and 4 points-bending tests) though...
25 January 2014 9,918 28 View
Assuming that we have analysed a sample with SEM-EDS. If the surface of the sample was not polished (or not polished very well), then it would not be very flat. I am curious how much this rough...
07 December 2013 6,883 2 View
For using FE-SEM-EDS to analyse the composition of a ceramic sample, usually we coat the sample to make it conductive before insert it into FE-SEM. What I'm curious is which coating technique will...
05 December 2013 684 13 View
Assuming in a XRD system we have one sample, but two different sets of diffractometer (including X-ray source and detector). I am wondering, how will the results change (peak intensity, analysing...
27 November 2013 5,525 6 View
As far as I know, there are three popular methods of etching in ceramic engineering, which are: thermal, chemical and plasma etching. We usually use these technique to etch the grain boundary on...
27 November 2013 6,756 2 View
I am working with X-ray CT Skyscan 1172 and its accompanied software CT-An. Are you experienced with this device? Can we share some analysing techniques, especially in diffusion mapping and...
19 November 2013 2,842 12 View
Maybe you agree with me that using BET we can get information of pore size distribution. But, I am wondering whether we can know particle size distribution from this technique? Assuming that every...
15 November 2013 5,035 19 View
I am thinking of a way to investigate the penetration of nanoparticles into ceramic sintered body. As we know, even in highly dense (up to 99.9% of relative density) sintered bodies, there are...
27 October 2013 3,520 4 View
I have a specimen fabricated by sandwiching a metal foil between two ceramic plates, and heating them over melting point of the metal. Now I would like to investigate the diffusion, or...
25 October 2013 2,352 5 View
Maybe you agree with me that the hardness of a ceramic will increase when its grain size reduce. There are a lot of work studying on the mechanism of this phenomenon. However, what will happen...
03 October 2013 6,975 5 View
I am using SEM/EDS analysis to investigate the composition of my sample (which was sintered by Y, Ti, O and Fe). Unexpectedly, there is a peak of Si coming out. I tried to analyze the sample few...
28 September 2013 8,112 17 View
I have prepared some sandwich of metal and ceramic layers. Now I would like to observe their interface, especially in atomic level. I am thinking about using FIB to cut out some samples from the...
14 September 2013 8,064 8 View
