Materials Engineering

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Questions related to Materials Engineering

Is there any list that contains which stiffness/elastic modulus(Cii,Cij) effect which plane or direction of a cubic system in what way?

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 3,175 2 View

How to size a combustor/burner?

Hello all! In the framework of our capstone project, we have a combustor burning primarily hydrogen and other hydrocarbons. We have to size the apparatus, ie find its precise dimensions (height x...

14 January 2021 795 2 View

What is the gradient thermal annealing (GTA) process?

Hello to all What is the gradient thermal annealing (GTA) process?

07 January 2021 8,157 2 View

Terrestrial Manganese Mineralization deposit formation?

I've started a thesis(bachelor) on a Mn mine in Poggio S.Vicino(IT), i went for some field researches and to collect minerals in situ(Mn oxides) usually found as Coatings on other minerals such as...

05 January 2021 1,340 2 View

Can anodizing of stainless steel 304 make its surface non-electrical conductive?

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 3,775 4 View

Why does diesel have sulphur content in it?

What sulphur compounds are present in diesel fuel

11 December 2020 10,098 3 View

Hi, what is the difference between spin orbit coupling and relativistic effects!?

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 2,501 4 View

How to wet etch Al2O3 mask?

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 8,545 6 View

Can we identify the minerals of red soil using these XRD data????

I need to identify the minerals in red soil because I want to separate the irons from that. so that purpose I want to know the other minerals contain in the red soil. then only I can remove the...

29 September 2020 1,281 9 View

Any suggestions for pneumatic based media supply systems for microfluidic applications?

Normally, people are using Peristaltic pumps to provide media to Microfluidic chips (Organ on a chip platform). I am looking for pneumatic based media supply systems. anyone having relevant...

21 September 2020 1,645 3 View

Stress relief annealing temperature for austenitic stainless steel 304L?

Hi, I have some TIG welded stainless steel 304L samples that I'm looking for erasing residual stress with. The goal is to remove both compressive and tensile residual stress while keeping the...

10 September 2020 5,159 14 View

How can I determine specifications of Temperature and Pressure Graphene-based Sensors ?

I would like to design temperature and pressure Graphene-based sensors using the laser scribing method (LIG). How can I adjust the laser machine (carbon dioxide laser machine) so that sensors will...

01 September 2020 10,021 4 View

Whether coal power can be included in the clean energy?

With the continuous development of coal power technology, its power generation technology and pollutant treatment technology are constantly improved.At present, coal power is still classified as...

01 August 2020 8,295 5 View

Two very basic questions about possible hypothetical situations in a running Blast Furnace ??

1. Suppose a large BF is being fed with Dry Quenched Coke. Suddenly , a breakdown occurs either in the Cove Oven Battery, or in Coke Dry Cooling Plant or in the transport route. The coke feed to...

30 July 2020 4,843 8 View

What is the reason of getting high silicon low temperature hot metal in blast furnace??

Fuel rate: 610kg/thm {coke - 510kg/thm, nut coke - 35kg/thm, PCI - 65kg/thm} Coke CSR : 67% GUTKO : 30min Production : 1500ton/ day

30 July 2020 4,484 4 View

Origin and why of manganese deposition as carbonates and silicates in epithermal low sulfidation systems?

I'm investigating the primary dispersion of elements of the epithermal fluid and it is linked a part to the deposition of certain manganese minerals.

26 July 2020 2,414 5 View

What might be possible sources of Fe contamination when measuring Fe in leaf tissue samples by ICP-MS?

For some reason we are getting a high variation in Fe %. Some samples replicates have 20% Fe whereas others have 1%. We're trying to determine what contamination sources may be contributing to...

19 June 2020 1,296 0 View

What should be the bond cutoff factor for the calculation in lammps?

I've been doing a molecular dynamics pyrolysis simulation of coal recently, using the ReaxFF (CHON) force field, and I need to analyze the pyrolysis product, but I don't understand how to set the...

16 June 2020 1,584 0 View

Predicting pyrolysis products of coal?

Please suggest a quality research paper giving correlations to determine coal pyrolysis products using proximate/ultimate analysis.

09 June 2020 7,089 0 View

Why can sharp cut cyclones for dust monitoring be mounted horizontally?

In dust monitoring sharp cut cyclones are use to limit the size of the particles going through the monitor. I have noticed that many are mounted horizontally. Why can that be done? My...

07 May 2020 1,597 0 View

What is the difference between unstable crack growth and ("stable") rapid crack propagation (RCP)?

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 943 3 View

What type of generation provides balancing services and spinning reserves in large interconnected power systems? Any references discussing it?

In large interconnected power systems, what type of generation (e.g., diesel, gas, coal, hydroelectric) provides load-frequency control, power balancing and spinning reserves? What are the...

23 April 2020 9,271 0 View

Looking for geologists or experts in phytoliths (silica SiO2 containing plant cells)?

Some of you are aware of my ongoing research on Ancient geopolymer stone monuments. We published several articles (see the Research Project: Geopolymer Science applied to archaelogy) on our recent...

20 April 2020 1,620 0 View

Type of bond between atoms in bcc metalic structure?

I am wondering about which kind of bond between atoms in bcc structure cell of metal. Is it metallic bond, ionic, covalent, van der waalls or other? I am not chemist. What ever the bond, is there...

04 April 2020 561 0 View

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