In your view, which current SEM is most recommended for EBSD/TKD and EDS analysis?

I know that this is a very difficult question, as the areas of application can vary greatly. However, if you want to operate low as well as high resolution (from a few millimeters to nanometers),...

02 February 2021 4,985 4 View

Who could support me with noise-poor EBSD patterns?

Ladies and gentlemen, I have a favor to ask of you. If you've collected beautiful and back-corrected EBSD patterns of preferably non-cubic phases... could you send them to me along with the...

30 March 2020 9,274 2 View

Is a tetrahedron uniquely defined if all length of one triangle and all three angles between the edges of the opposite corner are known?

Known are the length in a triangle ABC of a tetrahedron ABCD, i.e., also all angles between A, B and C are known. The position of D is, however, unknown, but the angles between all edges to D,...

26 July 2019 6,280 3 View

Does anybody has exeperience in electrolytic preparation of aluminium alloy AA2024-T3?

We need an artefact-free preparation of AA2024-T3 for EBSD investigations? Does anybody have recommendations?

02 August 2018 3,559 13 View

Empirical research in medical ethics?

What are the best papers, in your mind, regarding justification of the use of empirical research in medical ethics? And the best papers decribing the methodological variety?

12 February 2018 7,262 1 View

Does martensite describes a phase or a microstructure?

We are often talking about martensite, however, martensite is as far as I know never listed as phase in a database like ICSD. Asking metal physists they told me many years ago that martensite is a...

02 December 2017 317 20 View

Is there any term which describes the "order of zones" like ZOLZ, FOLZ etc in reciprocal space?

Parallel planes in reciprocal lattice can be easily distinguished by terms like ZOLZ (zero order Laue zone), FOLZ (first order Laue zone) etc. Is there any therm which is equivalent in crystal...

24 August 2016 4,272 4 View

What decides about the lattice description in Ramsdell's notation of stacking, e.g. in polytypes?

Crystal structures consisting of stacked layers can be described by Ramsdell notation. Thus, cubic-closed packed (ccp) is given by a sequence ABC....or 3C, whereas hcp (hexagonal-closed packed) is...

28 July 2016 1,736 6 View

Anyone familiar with variable pressure SEM or HV-SEM equipped with a gas injection system?

For many years I am using an SEM (scanning electron microscope) with variable pressure (i.e. low vacuum) which dramatically helps if any kind of charging occurs. Often only a very small chamber...

03 November 2015 7,231 3 View

Is the declaration of the magnification in images still acceptable?

24 September 2015 6,269 34 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How to search for crystal structure for material with atomic position labelled?

I am using the crystallographic open database and materials project to search for cif file but the exact structure is not mentioned or how can I deduce that the given structure and atomic position...

23 February 2021 6,723 2 View

How to generate AA6061 alloy or any aluminium alloy crystal in material studio?

I need to carry out molecular dynamics simulation on Aluminium alloy. For this i need the crystal structure that which could be further replicated to form a structure.

22 February 2021 1,410 1 View

Build an orthogonal box in ASE?

Hello, I was wondering the best way to build an orthogonal box filled with a defined crystal structure in ASE. I know it could be easily done in LAMMPS, but I guess it is also doable in ASE. The...

21 February 2021 5,899 4 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View