I’m looking to major in Materials Science & Engineering. In case I don’t make the major what other fields should I look into (ex. Chemistry & Mechanical Engineering).

While I understand the basics of XRD, I’m having trouble understanding the relationship between the diffraction pattern/the reciprocal crystal/ the real crystal. My class is using Roher which is okay, but I was wondering if anyone knows any book chapters that have better descriptions of the process. I’ve seen chapters from mermin/kittel/guacovazzo/ladd/de grade listed but I’m curious which books/videos people here like.

Thanks

I'm graduating in June with a bachelors in polymer materials engineering. Searching for jobs has been difficult. I'm not quite sure what I should be looking for.

I don't believe my dream job exists. I was kind of tricked in my major, completing most of my 2 years of research on recyclable, sustainable, and compostable materials only to find companies don't seem to actually care, they want people to think they do.

Anyways if anyone has any job recommendations for wanting to focus on these types of materials, I'm pretty open on the industry.

I got into polymers to help the environment not make it worse but those are the jobs I'm finidng..

The thermal conductivity of aluminum nitride varies widely depending on crystal structure and defects with the highest reported being 321 W/mK. Does anyone know which growth process is used to make the single crystal AlN with a thermal conductivity of 321 W/mK? I have looked through publications online but haven't found a good source.

I plan to make a life sized model cat for an animal science class in order to help students practice animal restraints (for things like exams and blood draws) without needing a live animal. I want to make the model like a stuffed animal but with a functioning skeleton so it feels more realistic, and need a material i can use for the bones. I don't have a whole lot of money, but I need something that can withstand being handled and pressed on even when very thin (ribs, for example, are a concern for me). It also needs to be easy for me to work with (no insane numbers of molds, easy to make into detailed shapes, maybe carvable, etc.). Does something like that even exist?

I'm currently in the aerospace R&D space and have been thinking about making a career/industry change. I studied materials science in college in hopes of one day being able to work on footwear, like make and test basketball shoes at Nike/Adidas/Puma or something. I think back then I was quite lost in terms of how to approach this dream, so I sort of gave up.

Is there anyone here that works in footwear/sports apparel that can give any insight on how this industry is looking? Or any advice on how to break into this industry? Skills to obtain? I work in additive manufacturing and with all the new craze in 3d printed shoes and clothing, I was thinking my expertise might overlap with where the industry is headed.

It needs to be completly sterile when it comes out of the packaging but also very light weight so I can carry it around all day.

It also has to be safe to put clothes and towels on it, so safe that the towels can be used on humans and the clothes can be worn by them.

Please help, thanks

I've bought a set of penis bumper rings made from TPE (Lovehoney Health Penis Bumper Set (3 Piece) - Lovehoney EU). If you don't know, bumper rings are cock rings you're supposed to put at the base of the penis so that they stop a few extra inches from going in and causing pain. The problem is that for a product for wel--endowed fellaa, they didn't make them very wide and they're too tight.

The most material science I know is the difference between flexible and elastic, but I have looked up on google if heat can help stretch TPE. Most sources I've seen indicate melting or even compressing (which I'm assuming will shrink them) rather than becoming flexible. I've tried to stretch the rings by putting them around a large bottle but they come back to their original size very quickly. The only other option I can think of is heating them a bit (in warmed water) and then putting them around a larger object and hope the new size sticks.

This sounds like it could very easily create a toxic fume and horrible smell, and ruin the rings (either deform them or male them not safe to use anymore) and I don't want to risk that as I'm low on funds right now and I wouldn't like to have wasted that money. Basiically what I want to know is: could this work and/or how much are the chances that this will ruin the ring or turn toxic? If you have any other alternative solutions please share them and thank you if you read this far

Idk if this is the right spot to post this but I am a high schooler in chemistry with an up and coming project of making a composite material for something that interests us. I chose snowboarding, and landed on attempting to make either a lighter material or material that’s better for cruising on snow. The materials must be typical chemistry classroom shenanigans or cheap. Any help is appreciated

I know Porsche used hemp to make hoods before and on another note brake dust is a huge environmental pollutant. One of the biggest culprits, how come there hasn’t been a pushed for a material that can break down in nature? Because it’s biodegradable and not durable? Even though hemp technically is.

I'm building an induction heat treatment furnace with target temperatures between 2000 - 2500 C under vacuum or argon. I've been using high purity YSZ insulation surrounding a graphite crucible for my initial tests. Every-time I go above 2000 C, I get this really cool plume formation that deposits on the viewport I use to take temperature measurements (not so cool). So, I have 2 questions:

1. Is the plume formed by oxygen ion loss at high temperatures, or some type of reduction reaction between YSZ, argon, and the atmosphere? I've notice similar plumes forming around an MgO crucible, and Al2O3 PCW insulation (though in the latter case it's probably silica evaporation)
2. Any porous or microporous insulation materials that can withstand 5 - 10 minutes > 2000 C under a reducing atmosphere, thermal shock resistant, and are not electrically conductive/react to RF? Microporous MgO?

https://preview.redd.it/if3h5yvney5e1.jpg?width=724&format=pjpg&auto=webp&s=e85989c0b5f156a3eaefe712e4153c78973f58bd

I've gotten obsessed with making uniquely colored metals or intermetallics. I did a lot of research and stumbled on MgCuSn having this really nice sky-blue color. I haven't ever seen anyone post about MgCuSn on Reddit, so here it is! The blue stuff is MgCuSn, surrounded by magnesium, copper, and tin separately.

https://preview.redd.it/wf9syrhijr5e1.jpg?width=4032&format=pjpg&auto=webp&s=ec0b0e9a4cc751c2b2b1ddb9f00898fd85e2b88c

Hey guys im studying Materials Science for a Masters Degree and im about to chose the topic for my Master Thesis. I have 3 different offers. Which one would you personally chose and why? Personally im really anxious about chosing the wrong topic with regard to future job opertunities. I sooner or later want to work in the industry for sure and am currently part time working in semiconductor industry (repair of photmasks). I am living in germany for context. The topics are:

1. Metallurgy: Mechanically alloying of the CrCoNi

High entropy alloy using powder HPT. Will Work with SEM, HPT and Nanoindentation.

2. Electronic Structure of Materials: Fabrication and Characterization of MnOx Films by magnetron sputtering. Oxidizing treatsments. XPS and XRD Analysis. Electric measurements.

3. Thin Films: Memristors. Electrical measurements on Y2O3 Films in memristor Devices. Fabrication of Va Thin Film by sputtering.

I would be thankful about any Input. Cheers!

A local farmer is willing to give me (also a farmer) a whole stack of irrigation pipes because they’re an older system with perished seals that are hard to source.

They slot together like a kitset for easy shifting and they use pressure seals that close at about 30PSI

I was hoping to 3d print a mold and then buy a gallon of liquid something to pour in. Worst case scenario I’ve got a lathe and could spin up a metal mold if I need heat.

Also,perhaps there’s a liquid I could pour around the original to make the mold?

Any ideas?

Hi, I am a French student (sorry for my English) studying material properties.
I recently came across a vintage monofilament fishing line: Browning Super Cast, 200m, diameter 0.45mm, 13kg breaking strength (Made in France).

I’m trying to figure out its stiffness characteristics, specifically its Young's modulus (E) or any technical data about its material properties.

I believe it’s made of nylon, as most monofilament lines are. Does anyone have technical information on this line or similar ones from that era? Alternatively, any advice on how I could measure its stiffness experimentally would also be very helpful!

Thank you in advance for your input!

https://preview.redd.it/xbgtp32bph5e1.png?width=312&format=png&auto=webp&s=6b5478d635ebdb749fcc2532195fe0edbb4c4844

https://preview.redd.it/okcn6gv93l5e1.jpg?width=1024&format=pjpg&auto=webp&s=6352a8e0797c601e4d530bd46f05d00ad046991a