What is the best geophysical machine or device for detecting groundwater?

what is the best geophysical machine or device for detecting groundwater? Are there any machine that can detect the depth and the type of water? do I have to buy one machine or more than one to...

26 January 2021 6,149 15 View

What would be best solvent for polyamides instead of formic acid?

I would like to use solution mixing technique for polyamide and graphene composites. Can I use THF/DMAc/DMSO/DMF? If, so what would be temperature and how much time it may take to dissolve into...

18 January 2021 5,800 3 View

Filtration of graphene oxide?

What is the filtration procedure/filter paper has been used to wash the particle from aqueous solution of hydrogen peroxide followed by HCl aqueous solution if improved hummers has been used ?

22 August 2020 3,054 2 View

Why Eviews dont allow me to run heteroskedasticity test ?

Dear all, Hello, I would like to ask a question about heteroskedasticity test using Eviews 11. Actually, after having the results of my estimations using fixed effect model for paned data (for 2...

09 May 2020 8,213 6 View

I want to ask about biodegradable material which decrease gelling temperature to 34 c ?

Hi i formulate polymeric nano crystal using F127 and F68 by different ratio . these form gel at 38 c i want to decrease gelling temperature to 34 c. i need to add material to decrease gelling...

19 July 2018 3,081 3 View

Power needed to fully charge a car battery?

22 October 2016 4,800 3 View

Zno nano particles colour changed from white to grey in process of calcination any suggestions?

In the formation of Zno nano particles process, after drying at 120 degree C, my zno nano particles are completely white but when i calcine it for 450 degree C it converts into grey colour. i...

26 February 2021 2,435 4 View

Why isoelectric point (IEP) of alumina (Al2O3) dispersion decreases with the increasing of calcination temperatures?

We have prepared different alumina powders (fine/submicron-sized) from waste sources at different calcination temperatures (C.T.). From zeta potential-pH graph, we saw that IEP values decreased...

09 January 2021 9,404 3 View

What is the difference between calcination and pyrolysis.?

please tell me in case of carbon material of metal oxide

09 November 2020 5,572 5 View

What are the XRD analysis conditions of the cement, sand and Limestone ?

I am a Phd student and I need to do XRD analysis on my pouder samples namely ( cement- sand- limestone and calcined clay). I was asked asked to specify the analysis conditions: -the nature of...

07 October 2020 5,737 6 View

How to avoid getting organic particles to charr(become black) during calcination?

I am trying to synthesize SrHfO3:Eu2+ nanoparticles. To reduce from Eu3+ to Eu2+, we calcinate it under Ar/H2 conditions but it ends giving a black coloured product. We need this for luminescence...

22 August 2020 448 3 View

Synthesis of black TiO2 powder by vacuum calcination?

I have synthesized TiO2 powder through sol gel method. I tried to do calcination of this white TiO2 powder under vacuum at 500 deg C. No change in colour was observed. Is this normal? because I...

20 August 2020 5,425 4 View

No title

Dear colleagues, I have analyzed the crystallinity of photocatalyst material (without calcination treatment and calcined samples) using XRD in two place XRD analysis services in my campus. When I...

26 June 2020 436 13 View

I coated NMC particles by Cr2O3, after calcination process, I observed a yello color on body of Alumina crucible. What is this color related to?

NMC powders is commercial powders that used as active cathode electrode of Li ion battery.

04 June 2020 7,969 7 View

Is there any place or company in Canada in which kaolin clay (high purity in kaolinite) can be found?

I am working on a project on rheology of concrete and need to provide natural kaolinite clay and calcined kaolinite clay (metakaolin). I am looking forward to hearing more from anyone who has...

03 February 2020 9,235 3 View

What gas flow rate should I choose for calcinating CaCO3 in the air ?

A lot of papers talk about calcination temperature, but little of them mention the gas flow rate. I find gas flow has a strong influence of my catalyst... I am preparing an organic Calcium...

18 November 2019 2,879 1 View