Has anyone made bronze with both indium and tin in high quantities before?

20 May 2020 0 8K Report

I am independently trying to make a copper based alloy capable of replacing stainless steel in surgical applications.

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What statistical test to use in SPSS to investigate relationship between continuous variable and national mean for another variable?

I am exploring the readability of court decisions in 5 countries. I have a quantitative readability measure (continuous variable, my dependent variable) for each decision - about 50 decisions per...

08 February 2021 419 3 View

How are the degrees of freedom calculated for a bootstrapped Independent Samples t-test?

I am currently writing up findings for my masters dissertation and I have noticed that APA often require the t statistic, the p-value, degrees of freedom and sometimes the confidence intervals...

08 August 2020 5,367 3 View

What am I doing wrong in molar solution calulation?

I recently read: "The perovskite solution for the solvent quenching method (MAPI) recipe was prepared by dissolving 553.2 mg PbI2 and and 181.23 mg MAI in 1 ml anhydrous DMF/DMSO (4:1, v:v) to...

17 May 2020 9,876 7 View

What are the molecular determinants for formation of adducts in electrospray mass spectrometry?

Dear all, depending on the molecular structure of an analyte different adducts during the electrospray process are formed. Even when high (up to 5 mM) of ammonium salts are present in the LC...

13 May 2020 6,621 3 View

How to make a simple perovskite diode without HTL and ETL?

I am facing trouble in making a simple perovskite diode in order to study the deep level traps of the perovskite semiconductor layer. Since the properties of perovskite layer are needed to be...

20 January 2019 2,593 4 View

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I obtain few astrocytes after the subculture step. Some astrocytes remain adhered to the culture dish surface after washing with PBS (Without Mg and Ca), incubating 15 min with PBS (Without Mg...

12 November 2018 4,172 2 View

Are there any Cryopreservants/Cryoprotectants with no DMSO?

Hello there, I'd like to ask whether there are any cryoprotectants/cryopreservants medium with no DMSO in them. Specifically to use it for freezing tissue such as collagen scaffold. I have found...

12 November 2018 8,949 3 View

Does anyone titrate their secondary antibodies for intracellular flow?

Hey everyone, I'm working on creating a flow QC panel. I have a few sets of 3 intracellular and 3 surface markers that I know have worked well in the past for ICC and flow applications. My...

27 September 2018 6,166 1 View

My extracted RNA from cells has good A260/A280 purity but poor A260/230 purity. What can I do?

Hello All My Microbio Experts, I'm a total noobie in this field so go easy... I've extracted RNA from cells and the A280/A260 values look good (~2.0 for most samples) which means the RNA is...

31 July 2018 6,802 1 View

What's the best type of optical microscope for inorganic materials analysis (thin films, electrodes, etc.)?

I'm not familiar with microscope types, features etc. and our R&D group wants to purchase a new microscope to characterize our sensors, materials, etc. Can anyone recommend a good type or brand?...

29 July 2018 2,731 6 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 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 Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

How to delaminate copper in water-based anodes?

Hello everyone, I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3...

24 February 2021 3,785 3 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

What are effects of steel jacketing on flexural strength?

Dear all, If steel jacketing is used to retrofit a reinforced-concrete (RC) column, can we use it to improve flexural strength? I understand that we leave gaps between the ends of the jacket and...

22 February 2021 1,906 5 View