What is meant by setpoint and integral gain in scanning probe microscopy?

Setpoint and Integral gain seems to be vital parameters that control the scanning of the sample surface during scanning probe microscopy. How do these parameters control the final image...

11 December 2014 7,851 5 View

Can one give the sample a desired strain by interrupting a uniaxial tensile test in between??

06 July 2014 2,719 10 View

How can we find lattice parameters with X-ray diffraction?

I have scanned a sample with X-rays for quantitative analysisof phases present. In the X-Ray diffraction plot (attached) peaks of phase with fcc and with bcc are easily identified. But, a peak is...

02 March 2014 4,927 22 View

During intercritical annealing in steels, how carbon concentration in austenite depends on isothermal holding temperature?

Dependence of carbon concentration in austenite on the temperature during newly developed Quench and Partitioning (Q&P) process has been mentioned by several authors. x(austenite) = x(ferrite)...

31 December 2013 7,241 5 View

How is subscripted assignment given for solving non linear equation?

I wrote codes in matlab to solve an equation. Since I have a lot of data and for each data my output changes I decided to give it a while end loop for subscripted assignment. For example If I...

04 May 2013 6,131 1 View

Mixing molten alkali nitrate salts and alkali chloride salts, is it safe or not?

During my experimental procedure, a point will come when a small amount of molten alkali chloride salts will be mixed in molten alkali nitrate salts. I don't have much Idea of the chemistry...

01 February 2013 5,621 2 View

What properties of alloy elements in steel make them austenite, ferrite, and carbide stablizers?

Apart from the experimental observations, is there any other reason for why the alloy elements are classified as ferrite, austenite, and carbide stablizers.

11 December 2012 9,611 8 View

How can we calculate the true young's modulus by using machine stiffness?

Slope of elastic part of stress strain diagram does'nt give right young's modulus of material. Machine stiffness has to be taken care of for getting the correct value of young's modulus. How can...

11 December 2012 9,287 3 View

What is the effect of high tempering temperature on pearlitic structure in steels?

During high temperature tempering at 500 degree Celcius some distortion in the lemellar structure was noticed. Can anyone suggest the reasons behind this phenomenon?

09 October 2012 9,212 7 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View