How to calculate electric field inside a charged non-conducting solid sphere?

05 June 2015 1,484 2 View

How can one synthesize well dispersed magnetic nano particles by co-precipitation?

01 February 2015 1,268 5 View

What are the optimum deposition parameters for PMN-PT thin films using PLD?

It has been very difficult for me to get single phase perovskite PMN-PT films using PLD ? A lot of things reported in literature I have tried e.g. use of a buffer layer such as LSCO,SRO or using a...

04 May 2014 3,347 2 View

How does electrostriction differ from piezoelectricity in terms of physical mechanism?

How can we quantify each one separately?

03 April 2014 6,879 12 View

Can anyone share their expertise for determining the exact elemental composition in an oxide materials?

I am having a Lanthanum Calcium manganite (La1-xCaxMnO3) 75 mm dia sputtering target whose exact composition is not known to me. Can anyone suggest a technique other than EDX?

03 April 2013 4,536 8 View

Can anyone clarify the difference between Grain size, particle size and crystallite size?

What we calculate from XRD using Debye Scherrer's formula is crystallite size If I am not wrong. Then what we find from TEM and some other techniques like DLS?

02 March 2013 7,965 62 View

What are the optimal deposition parameters for Cr/Au by PVD?

Up to what temperature can the Cr/Au bottom electrode sustain?

11 December 2012 7,620 0 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

No streamlines present in a small region inside a flow. This means exactly what?

No streamlines present means whether the flow is getting obstructed there and the velocity inside the region is zero? Or else, the fluid is trapped inside that region with a nonzero velocity?...

22 February 2021 5,249 10 View

How to solve the fatal error "the entire source was rejected" in MCNP?

Simple geometry was made having concentric cylinders bounded by a square region. The geometry has a reflective boundary. The source was defined at one point in the boundary and when it had been...

17 February 2021 4,364 3 View

Can bio-decomposer be a successful alternative to reduce residue burning?

To maintain the proper crop plan most of the times there is not enough time to make the field ready for the next crop. In this particular context , can bio-decompser be a solution? What about...

16 February 2021 7,068 24 View

How complex systems physics/statistical mechanics would be helpful for particle physics & Networking?

Recently, I've been selected for an ICTP program named Physics of Complex Systems. But, I have a keen interest in Particle Physics & Quantum networks. As statistical mechanics involved in...

11 February 2021 699 3 View