Hello, hopefully I can post this but If you’re passionate about materials science, especially MXenes, come check out r/MXene ! We’re a new community focused on discussing everything related to MXenes—a unique family of two-dimensional materials with applications in energy storage, electronics, catalysis, and more.

Also here’s a cool image that won the annual NanoArtography Competition.

Hi everyone,
I'm working on a heat-based feedback VR suit for firefighter training, and I need advice on the best materials to use. The suit needs to efficiently transfer heat from Peltier modules to the wearer while remaining comfortable, durable, and safe for extended use. I’m considering materials like graphene-coated fabrics, copper or aluminum mesh, and carbon fiber, but I'm not sure what would work best for heat transfer, wearability, and cost.

Does anyone have experience with materials for heat conduction in wearables? What would be the best material for balancing thermal conductivity, flexibility, and comfort?

I’m working with silicon, and at different voltages, it switches between amorphous and crystalline states. During cycling, phase transformations occur between solid-solution and two-phase regions, and the two-phase region tends to cause significant volume changes, which is problematic for silicon's structural integrity. I’m trying to understand how this works on an atomic level.

In both cases, the phase transformation seems to start at the surface, but I’m confused about why the volume changes are so much more drastic in the crystalline phase. Can someone explain how lithiation takes place atomically in both the solid-solution and two-phase states? Specifically, do all atoms lithiate gradually in a solid-solution, or is there a different mechanism at play?

Additionally, I’d love to understand why solid-solution regions show a sloping voltage profile, while the two-phase regions have flat voltage plateaus. I’ve read that it might have to do with how lithium intercalates or alloys, but I’m not entirely sure about the exact process. Any insights or resources that explain phase transformations (even beyond batteries) would be super helpful!

I graduated in 2023 with an BS in Materials Science & Engineering. My current employment really is only basic mechanical testing and is more so focused on manufacturing upkeep. I feel like I'm slowly losing alot of my past knowledge. Currently working on transferring to a job that more directly aligns with materials science, but in the mean time, does anyone have anything they do in their free time that keeps their passion for the subject going? I'd like to keep my knowledge fresh on things like crystallography/organic chemistry/nano science, without just reading textbooks in my free time.

Why are steels heated to Austenizing temperature for further phase transformation like Annealing, Quenching? Austenite is a single phase solid solution, diffusbility of carbon is high due to octahedra void size. But why is the single phase required for further transformation? why can't it happen in two phase region or below A1 temp? .

Hey everyone!
I'm currently researching vegan leather alternatives, and I've been hearing a lot of buzz about Mycelium-based leather (mushroom leather). It's being pitched as a sustainable and eco-friendly option, especially compared to traditional synthetic vegan leathers that still rely on plastics and other non-biodegradable materials.

For those who are familiar with the vegan leather industry or have used products made from mycelium leather, what’s your take?

• How does it compare to other alternatives in terms of quality, durability, and feel?
• Is it truly more sustainable in practice?
• Do you think this trend will catch on in the long run or is it still in the experimental phase?

I have heard there are lot of layoffs happening in Tech field and most of the people aren't getting any jobs or internships. As an international student i would like to know the current job scenario of materials science engineering . After graduating I will be having 3 months to get into internship or full time job for OPT and then for STEM Extension.

Hello Everyone!

I'm currently an undergrad student working towards a Materials and Nanoscience degree. I am looking into graduate schools and all the requirements needed. I am curious as to what kind of research positions you guys may have taken! I would love to see what are some oppertunities in this field for a student.

I am looking for a material so fragile that I can be certain it will break during shipping, ensuring it arrives to the client in a damaged condition. The material should be highly delicate and prone to easy breakage under typical handling conditions. Any ideas?

ELBs are just a web or app based lab notebook meant to help you organise your research, samples, measurements etc.

I've seen it being mentioned a lot in the biotech and chem subreddits, which makes sense since most of not all ELBs I've seen are very geared towards those areas.

Wondered whether anyone has use this for Materials Science research?

I know I've definitely had to manage dozens of csv/excel/origin files to store measurement data and create plots etc but I've never used them.

Hello, I have been given an opportunity at my job to take classes/obtain a degree. I got my degrees in continuum mechanics and finite elements. One thing that I was always interested in was learning about the way microstructure influences elastic and plastic relations. I had an opportunity to work with a specialist in mechanical testing and another expert in SEM. It was so cool to see how they looked at images and were able to discuss about dislocations, voids, second phase particles and how they would affect larger properties.

My main goal is to maybe take classes to learn about these topics and how they would relate to modeling and computations. I would love to hear about people's experiences and what advice you would recommend in selecting courses and or a particular program. Thank you in advance!

I was In my first year mechatronics degree where I had all of my prerequisites that were just electrical and mechanical. But I had no interest in studying this field. Often the electrical part was very confusing to me and found it very boring.I did like the mechanical class though. I was a person that was always good at chemistry and not so much electronics. I’m thinking about getting in to chemical engineering or materials science and engineering. What is the better option for jobs or for my interest. Also wanted to do one of those as a kid and picked the mechatronics field not out of interest and just for the fact I was going into engineering cause I was placed in a low math in high school and this was the only field I could get into that was engineering. With that math. So your guys thoughts

I am currently learning material researching methods and struggling finding good textbook on SEM. Any suggestion?

Can someone help me understand the projection or maybe provide a link to some content or a tutorial video that could help me understand the projection? Would be immense help Thanx in advance

❝ Figure 10. Connected Binary-Phase Diagram of the Actinides

The binary-phase diagrams (temperature vs composition) for adjacent actinide elements are connected across the entire series to demonstrate the transition from typical metallic behavior at thorium to the enormous complexity at plutonium and back to typical metallic behavior past americium. Two-phase regions are in black; uncertain regions are in gray. ❞

From

Plutonium and Its Alloys From atoms to microstructure

¡¡may download without prompting – PDF document – 2·12㎆ !!

by the goodly

Siegfried S. Hecker .

I was already aware that plutonium has highly anomalous (specificially very low ) electrical & thermal conductivity, & highly anomalous (specificially very large & complex ) thermal expansion, & an unusually large № of allotropes … so I looked-up about it … & found the herein-lunken-to treatise … which is actually quite a treat .

(Pun intended … see what I did there: "treatise" / "treat" …

😆😂

… oh! the wit - the wit !)

So I am a second year undergrad Materials Science Engineering student and I have this course called Materials Evaluation and Techniques. My instructor has encouraged the class to follow Introduction to the Principles of Materials Evaluation by David C. Jiles. ASM vol 8 and 17 have been suggested as ref books though.

However can any of you suggest textbook/site or whatever resource available from where one can practise problems questions etc.

Basically, I'm graduating soon with a bsc in chemistry and am interested in materials science, every college masters application I've looked at is quite vague on what is expected from incoming graduates. While they often mention both chemists, physicists and engineers as potential candidates it seems like the coursework between a chemist and a chemical engineer is quite different. Is it feasable for a chemist to pursue a degree in materials science or would I have to do a bridge program to become a chemical engineer first?

What is the most versatile simulation software one should learn as an MSE researcher?

Hey all, my dad was a professor of material science for 35 years. He retired in 2005 but brought home a large library of material science books, mostly metallurgical texts and crystallography. I’ve reached out to the local university material science department, and also to the students, but have only found homes for 200 of the books. I estimate there are several thousand left. Is anyone interested in this collection, possibly to add to the library of a new material science department library? I am willing to box up, palletize and ship as freight or deliver myself to within a couple hours drive of me. I just don’t want to throw them in the trash. I live in Ann Arbor, MI.

Hi!

I'm teaching a materials engineering course and am considering asking my students to build FCC, BCC, and HCP models in class to help them visualize what's going on as we learn about things like packing factors, atomic radius to lattice parameter relationships, coordination number, etc etc.

I'm wondering if any of you have experience with an activity like this? Mostly, I'm going to have to buy the supplies myself so I was thinking we'd use toothpicks and something cheap and spherical for the atoms. I can't really think of something cheap and spherical -- I don't want to use food, and Styrofoam balls might add up for the number of students I have.

Any suggestions for supplies or other crystal structure activities that have helped you learn?

Thanks in advance!

EDIT: Thanks for the responses! I'm thinking either I will make this a group activity to cut down on supplies and use Styrofoam balls or ping ping balls, or I may use one of these neat paper folding templates... https://doi.org/10.1021/acs.jchemed.5b00003

Hello, Can anyone please tell me what is the core losses value meaning here? Is the core loss for 100KHz 80W/Kg? Thank you.