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Questions related to Materials Engineering
I am working with a biosolvent derived from E.crassipes and I intend to characterize the surface area using BET. How do I calculate the pore diameter from the data obtained by BET? Please,could...
17 February 2022 5,506 4 View
I prepared gold nanoparticles (NPs) via green synthesis. After lyophilization, I got the powdered form of nanoparticles. For characterization i.e. Zetasizer, TEM etc. and to check biological...
08 February 2022 5,344 6 View
Hi, I'm trying to coat magnetic nanoparticles with silica. I know that there are plenty of publications in the literature. But I still couldn't solve my problem. There is a method I also use...
06 February 2022 6,433 8 View
Dear All I would like to coat silicon tubings (Tygon) with 1% Pluronic F127 to prevent cell attachment inside the tubing. Can I use the coated tubings 1 day after I coated or should I use...
22 November 2021 4,592 0 View
Dear All I would like to use a peristaltic pump that exerts minimum occlusion in the rotating part of rollers, since cell flow will be inside the tubings. Therefore, is there a commercial...
07 September 2021 9,144 0 View
I was wondering if anyone had advice on removing a nickel hard mask - which seems to have become resistant to my standard Nickel etch. The sample is GaN with a hard Nickel mask, which has...
26 March 2021 6,253 3 View
I looking for ferro calcium production process
04 March 2021 2,183 4 View
The value of stiffness/elastic modulus(Cii,Cjj) affects crystallographic planes in many ways like maximum shear or maximum tensile stress when stress is applied. The anisotropic materials show...
24 January 2021 3,012 2 View
Hello to all What is the gradient thermal annealing (GTA) process?
07 January 2021 7,939 2 View
Anodizing of SS304 creates a thick oxide layer on that. Is this layer non-electrical conductive? What thickness should be obtained in order to make the surface non-electrical conductive?
02 January 2021 3,525 4 View
DFT calculations are performed for oxo-cluster of transition metal which contain heavy atoms, I would like to know which one I have to take on consideration the spin orbit coupling or relativistic...
11 November 2020 2,385 4 View
I have a silicon wafer with 100nm Al2O3 deposited on top by magnetic sputtering, which was patterned by lithography to open holes and expose the silicon below. A polycrystalline layer of CuInSe...
19 October 2020 8,401 6 View
I have read in some articles about unstable crack growth which is sometimes referred to as RCP, however it seems that there is a clear difference between unstable crack growth and RCP. According...
27 April 2020 676 3 View
Hello, I'm performing a coupled structural- Electromagnetic analysis. For the initial setup of my model I used General Material 'gray cast iron' for my Iron core of the electromagnets. But for...
26 March 2020 8,143 3 View
I am making frothed PU foams (compressed air is mixed in). The foam only rises 1 to 3 mm during heating and the bubble struts of the foam tend to be strong, so they are difficult to open up. Does...
14 March 2020 2,335 4 View
After cutting the plane I do not understand which plane of atoms corresponds to which one.If both the upper part and the bottom part are contained in the same straight line and we cut the partial...
04 March 2020 8,456 3 View
Dear all : May anyone share with me a Graph showing the curves for Temperature vs Thermal Conductivity, and Temperature vs. Electrical Conductivity/Seebeck Coefficient (in the same Graph) for...
26 February 2020 1,794 6 View
The lesser the moisture in coke, the lesser the Coke rate in Blast furnaces and hence lesser fuel cost. In order to decrease the coke moisture, various parameters need to be controlled. A few Coke...
02 January 2020 5,856 1 View
someone knows information on Summer Student Programme in CERN? for example your Experience , condition there, Is it desirable or not, Do you think I 'll sign up or not and Any other...
12 December 2019 7,712 2 View
10 December 2019 3,469 2 View
I want to make electrospinning scaffold with PLA/PCL/PMMA/Collagen with these methods: 1. I use chloroform:methanol 3:1 to dissolve PLA (mW 80.000, 2 wt%), PCL (mW 70.000, 3 wt%), and PMMA mW...
11 November 2019 4,157 3 View
02 November 2019 6,158 5 View
I performed stress relaxation test, resulting in collecting time, stress, strain. I fitted these data to a 3-decay exponential decay model strain(t)=A0+Ai*exp(-t/ti), with i=1,2,3 and got my...
07 May 2019 926 4 View
05 May 2019 7,397 5 View