What is surfactant? how we can select for particular materials?

01 February 2016 7,547 3 View

How can I produce pure iron powder by electrolysis with minimum size?

pure iron powder by electrolysis

31 December 2015 972 1 View

What is mean by "Self Repair of Active Metals" ?

Self Repair of Active Metals

02 March 2015 5,960 0 View

What is name of following steel ?

C=0.23%, Mn=0.66% Ni=2.9% Cr=1.29% Mo=0.24%?

11 December 2014 1,686 0 View

What is name of following steel ? C=0.23%, Mn=0.66% Ni=2.9% Cr=1.29% Mo=0.24%

C=0.23%, Mn=0.66% Ni=2.9% Cr=1.29% Mo=0.24%

11 December 2014 2,633 0 View

How to incerse the wear risitance of polymer?

polymer wear

10 November 2014 4,126 0 View

Does polycrystalline material posses the crystal structure like FCC, BCC, HCP?

06 July 2014 1,055 3 View

What is the percolation threshold in case of polymer matrix composite and what is its significance?

Practical application of percolation threshold.

08 September 2012 1,008 16 View

Is there possiblity to develop such material whose coefficient of transmissivity is near about 1 and it can sustain temp. More than 750 k ?

Material should be like glass

07 August 2012 2,694 2 View

What is the effect of modulus of elasticity of Ni & Cr on steel hardness and how is its hardness different as modulus of elasticity changes?

What is the effect of modulus of elasticity of Ni & Cr on steel hardness and how is its hardness different as modulus of elasticity changes?

07 August 2012 7,793 1 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

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 techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 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 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

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View