For Nyquist plots, Why does the first semicircle correspond to grain contribution in polycrayllines?

Bowei Xun @Bowei-Xun

14 March 2024 0 3K Report

In other words, why cannot the grain boundaries follow the high frequency ac signal?

Badges
Science topic

More Bowei Xun's questions See All

How to prepare a citrate complex containing tin and antimony?

Materials include SnCl2, SbCl3, and citric acid.

21 February 2024 4,457 0 View

How to dissolve tin and antimony in citric acid solution?

I am making electrodeposition liquid of tin antimony, and I want to dissolve 0.3M SnCl2·H2O and 0.03M SbCl3 in 0.3M citric acid aqueous solution, but it cannot be dissolved and white precipitate...

19 February 2024 7,614 1 View

Cannot distinguish GFP+ cells from different groups of liver cells using flow cytometry?

Recently I tried to use my nanoparticles carrying GFP mRNA to transfect liver cells in vivo. And my plan is to figure out which kinds of liver cells (Like hepatocytes, Kupffer cells...) can be...

01 January 2024 3,062 5 View

How to prepare a Ti/Sb–SnO2 electrodeposition solution?

We are currently attempting to create a Ti/Sb–SnO2 electrodeposition solution. While we have come across various methods in the literature, there is a lack of specific procedural details. This has...

12 November 2023 6,752 0 View

How to Prepare a DES Containing Choline Chloride and Ethylene Glycol?

I want to prepare a DES system for electrodeposition, but I've been unable to do so. Choline Chloride: Ethylene Glycol in a 1:2 ratio. When heated in an 80°C water bath, the resulting transparent...

24 October 2023 3,647 0 View

How to find the crack tip location, or crack path coordinate with simulation done by ANSYS Mechanical APDL?

I am dealing with a crack simulation using ANSYS APDL mechanical. For some purpose, I need to extract the location of crack tip under every substep of simulation. The simulation was done by 2D...

25 April 2023 2,416 1 View

What is the best protocol for examine the length of Telomere in Drosophila melanogaster?

I wondered how to examine the telomere length, especially in Drosophila melanogaster and is there a recommended detailed protocol for this work

29 July 2022 6,307 0 View

Can a rejected paper be reposited in BioRxiv?

Hi, Just wonder if a rejected paper can be reposited in BioRxiv? As I see in Wiki saying: "In general, most publishers that permit preprints require that: the authors disclose the existence of...

05 December 2021 8,097 5 View

How to detect asphalt segregation based on image?

Is there any newer method of image texture feature extraction

10 May 2020 8,896 0 View

Is there any MR-conditional stepper motor commercially available now?

I need to make a motion device that works in MRI which means that the stepper motors need to function well under static and gradient magnetic fields. Are there any recommendations for such...

06 April 2020 1,616 0 View

How does grain and grain boundary affect the ceramic when studying its dielectric properties?

I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...

07 August 2024 5,177 3 View

How to display grain boundaries in RVE model?

Many literatures have shown that the RVE model shows the grain boundaries between different grains. How can this be achieved using DAMASK+paraview?

21 July 2024 9,224 1 View

Which etchant is suitable to reveal the oxide grain boundaries present in a thermally grown Alumina (Al2O3) oxide scale over the Metal substrate?

I want to know the suitable etchant required to reveal the Aluminum oxide grain boundaries.

14 June 2024 8,955 1 View

Is the sediment also taken for percentile calculation for grain size analysis?

I am performing a graphical grain size analysis based on Folk and Ward (1957) and for that I require percentiles as specified in this article...

08 June 2024 5,583 4 View

How to calculate the activation energy for grain and grain boundaries?

how to calculate the activation energy for grain and grain boundaries?

18 May 2024 5,413 0 View

What does the letter denote conventionally in grain boundary labelling with Σ values & letters?

This kind of labeling is widely used as listed below. Is the letter important or trivial? How is it related to the axis, angle, and boundary plane? Thanks. Σ values denote the ratio called the...

30 April 2024 5,894 1 View

Are grains show capacitive behaviour and grain boundaries show inductive behaviour in Nyquist Plot?

Respected All, I have drawn Nyquist Plot for my sample. The fitting equivalent circuit is shown in attached figure. From that i find that grains show capacitive behaviour and grain boundary show...

01 March 2024 1,972 0 View

What role does atomic diffusion play in the grain growth process of a metallic material?

In metallic materials, the process of grain growth is also the process of grain boundary migration. So what role does atomic diffusion play in this process? Is there long-range diffusion migrating...

07 January 2024 8,375 2 View

Does anyone know what color etchants to use for metallographic preparation of Tantalum or similar refractory metals?

I have to occasionally etch tantalum to evaluate grain structure, but I often times find the etchant doesn't fully reveal the grain boundaries. Perhaps using a color etchant as well is worthwhile....

02 January 2024 8,652 0 View

High-temperature diffusion creep or high-temperature grain boundary migration (GMB)?

Dear All Can anybody help me identify whether the undulatory boundaries between grains (see attached file) are due to high-temperature diffusion creep or high-temperature grain boundary migration...

17 December 2023 9,070 2 View