Does addition of zinc stearate to metallic powders of iron, copper, aluminium etc in Powder metallurgy brings in problems?

In powder metallurgy stearates are added while mixing of powders in order to facilitate compaction. Further these stearates are removed during dewaxing. If zinc stearate is added as a lubricant...

01 February 2017 1,175 5 View

How to read oxidative wear in SEM image?

10 November 2016 6,482 2 View

Compressive strength of Composites at high temperature?

I wanted to know the approximate reasoning for the decrease in compressive strength of Fe based composite at high temperature (500 degree Celcius).It would be a kind gesture if some one provides...

09 October 2016 5,824 3 View

Complete details of certain refrence?

Kindly apprise me about the complete details of the article titled 'Self-lubricating sintered composites with hexagonal boron nitride and graphite mixtures as solid lubricants'.

06 July 2016 5,084 3 View

Porosity?

What is the easiest way to calculate porosity in sintered alloys.

03 April 2016 7,964 7 View

How to calculate relative density?

03 April 2016 6,267 4 View

Location of Oxides formed on Iron based material?

02 March 2016 8,465 2 View

How to calculate wear rate?

If some one can clarify as to what formulae is best for calculating wear rate in case of composites.

02 March 2016 5,599 17 View

Can iron oxides such as Fe2O3, Fe3O4 be used as solid lubrication?

Iron oxides possess good hardness and is it possible that these oxides help in reduction of friction at 500 degree celcius

02 March 2016 3,010 8 View

Can anyone confirm the formation of Oxides formed on Iron based material?

It would be humble gesture if some one could confirm the formation od oxides in the attached SEM image as it is the image of sample tested for wear at 500 degree celcius

02 March 2016 6,369 2 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View