Are there any disadvantages for using reciprocating wear test in high speed?

Please could someone advise if there are any disadvantages while using reciprocating wear test at high speed around 10 HZ in terms of COF. Is there any possibility that the system cannot read the...

11 December 2016 975 9 View

How can I interpret the Raman spectra of alumina and 3Y-TZP?

I have a Raman Spectra of Alumina and 3Y-TZP sintered around 1500 C. The Raman Spectra is showing few small peaks above 1000 cm-1 and one peak around 1650 cm-1. As most literature does not...

10 November 2016 5,497 2 View

Please could someone suggest why the samples which have been processed in exactly the same way obtain different colour after sintering by SPS?

Please could someone suggest what are the possible reasons that the samples (Alumina and zirconia) which have been processed in exactly the same way ( Ceramics Processing and also the same recipe...

31 December 2015 6,350 7 View

Does anyone know why the surface of SPSed (Spark Plasma Sintering) Samples are rougher than pressureless sintered Samples?

10 November 2015 792 5 View

The shrinkage rate Vs temperature graph shows two peaks at different temp. Would it cause a problem for sintering and densifying processes?

I have two different phases in my composite which are Alumina and Zirconia. The shrinkage rate Vs temperature graph shows two peaks at different temperature. I am not sure if two different max...

03 April 2015 4,939 4 View

Has anyone ever had the experience of having bumpy surface after making a zirconia /Alumina sample by SPS followed by thermal etch?

After making composite out of zirconia and alumina by SPS followed by grinding, polishing and thermal etch, my samples get bumps over surface. I'm not sure about the possible reasons. Please see...

02 March 2015 7,652 5 View

Why do researchers mix strontium carbonate with Alumina to form strontium hexaluminate rather than directly mixing strontium oxide and alumina?

I see in publications that people don't directly use strontium oxide to react with Alumina and instead they use other derivatives of Strontium such as Strontium carbonate to form strontium...

02 March 2015 3,050 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 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

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View