Is it possible to obtain porous free, dense, uniform and thick Hafnia coating by sol-gel process?

At high temperature, Hafnia coating over a substrate act as a Thermal Barrier Coating. It is already proven to coat few microns of Hafnia coating using Soll-gel process. But, is it possible to...

11 December 2018 1,162 0 View

How does the porous plate or disc fabricated/manufactured?

Micro porous plates or disc are mostly manufactured through powder sintering process. Also, I would like to know the possibilities of fabricating porous alloy plates. Can Any one suggest the...

09 October 2018 486 1 View

How does the addition of kinetic energy to the fuel alters the injection velocity of the fuel in the engine?

During the continuous operation of the engine, heat generated from the combustion chamber will transfer to the injector body. If this happens so, does the heat addition to the injection fuel...

09 October 2018 6,918 5 View

How do we find the heater coil element diameter?

We are designing a heater bed to heat the substrate around 1300 C. Only Precious metal (Pt-Rh) or Tantalum can be used as the heater element. Power is limited for my application. Also, we have...

06 July 2018 9,903 0 View

Does the TBC coating on Titanium substrate can with stand elevated temperate of about 1500 C?

TBC (7-8% YSZ - NiCrAlY) on the titanium substrate by APS isused in a application where the service temperature of the system would be 1500 C. From the literature survey, it is clearly explained...

05 June 2018 6,135 5 View

Can solid Graphite material be dissolved chemically or Electrolytically?

We have a requirement to dissolve solid graphite by chemical process with or without electrolytic process. Note: This is not related to graphene production process in any way and responses...

05 June 2018 252 9 View

How Iridium acetylacetonate can be prepared conventionally?

Iridium acetylacetonate is the iridium coordination complex with the formula Ir(O2C5H7)3, which is sometimes known as Ir(acac)3. acetylacetonates are commonly used in various catalysts and...

11 December 2017 2,101 6 View

What is the effect of porosity and pore density in permeability and hydraulic conductivity of a foam?

11 December 2017 2,140 5 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 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

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 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

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

How can I verify my centrifugal fan design for electric motor cooling?

I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...

23 February 2021 2,390 3 View