I'm an Associate Professor of Materials Science & Engineering at the University of Utah. I'm passionate about engineering education. I love making tutorials and example problems. Just comment an any video with a request for a new problem or explanation and I'll make it happen.
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You are the perfect 👍
i still don't get where you're getting 50% and 100%
When I calculate the Y values with my model and then put them in a data set for the chart, i just have some theoretical points that correspond to the experimental points, i don't have a theoretical line. If i choose for the chart to plot the theoretical dataset as a line and not as points it just connects the theoretical points with straight lines instead of plotting my function with my calculated constants. I can get around it by calculating points for very small steps of the x value so there are many small straight lines that emulate a curve but it takes a lot of time and I feel that there is another way for the line to just represent the equation. Any solutions? Thanks to everyone that read this. *ps I'm using Libre Office Calc and not Excel but I do not think it really matters
thank you so much, excellent explanation
Hello sir, can you teach how I can show facets like 040 0r 010 model seperately
Thank you For this video.. Very helpfully ❤️
Can this tranforms that use composition based featurizarion be combined with featurization techniques of convolutional neural networks of SEM images to take in account both parts of the chemical and morphological part?
That's a cool idea. I'm not sure if I've seen it tested exactly like that.
Just few hours ago exam i am watching that video...No doubt it gives you something more than others one... I am grateful 💟
I hope it helped you on the exam. 😁
@@TaylorSparks let's hope!
it is so criminal that this doesnt this video have more likes. you have dumbed it down so well, i think i actually have achance. thank you
Thanks dude!! 😎
How to calculate (δ) in CaFeO2.5+δ
Sir, may i request your slide please if it is possible . Thanks
Sure, shoot me an email.
Thermal shrinkage is very small - are other processing parameters also compatible with robust 3d printing ?
where did you get the value of da?
Thank you, your level of understanding and ability to articulate it is a rare combo
Thank you!! It's my passion
Why is Molecular Weight unit written as g/mol .. isn't that the unit of Molar mass?
Same units. The only difference between a molecule and the polymer is how many mers are present. So it makes sense that they have the same units.
Thx bro very helpful
Share with your buddies 😁
You are a gem to engineering student. I'm a bioengineering/chem major and this is so useful. Thanks
I love hearing this type of feedback!!
How is that equation with t^2 in it linear?
didn't quite understood at 2:11 , you saying the second equation to be linear ? HOW if we have t^2
Thank you _/\_
4:00 Where can I find the video about the CGCNN? Thanks!
Thank you so much!! Awesome videos :)
barbaric. lamo de d.
First! this show is always informative and entertaining, thanks for making it y'all
Heck yeah homie
Thanks a lot!
In "Import phase", refining multiple patterns, You said we had to make sure all experimental conditions are same. "All experimental conditions" are the conditions we measure to collect XRD histograms, aren't they?
Yes
Another question is "peaks in background" showcased the phase you didn't import into your refinement, i.e. the impurities, isn't it?
does the act put " impurities' peaks into background' make the weight fraction of your both phases wrong?
@@paris_cellover technically yes. But common and if amount of impurities is small then impact is small. Gold standard approach is to add a known wt fraction of a standard like Si or Al2O3 and then you can calculate true amounts even if amorphous phase is present
yeah, the ROR method can calculate the true amounts of amorphous phases. But it's quite inconvenient when we had too many samples to refine @@TaylorSparks
Does the unit for avogadro's number is atom/mole?
Not necessarily. It's the number of items in a mall. You could have Avogadro's number of eggs instead of a dozen eggs or any other unit. So if you are talking about Atoms then it is Atoms per mole, if you're talking about molecules then it is molecules per mole etc
What type of graph are you using in this vedio.. can you mention its name and how you got that y fit in graph?
The equation I'm using is called the Avrami equation. It's used in modeling polymer crystallization vs time as well as other structural transformations in materials science. It has a nice S shaped curve that we can fit to other S shaped data.
theres a strong echo for this video
Yes, my apologies for that!
Two years ago you inspired me to use python in my research activities. And now you cover the topic which I've been working on for past one year. Work which I don't think I would have become qualified for if not for my skills with python, which I learned from you. Thank you once again professor. I've been working on PHAs at Centre of Excellence for Biopolymers, Institute of Chemical Technology, Mumbai, India. We are sponsored by Praj Industries, they are really big into bioethanol. You can check them out, they even got a whole facility dedicated to Biopolymers called Praj Matrix. Cool stuff.
Great explanation ❤
such short video help me to understand the lever rule so easily, thank you, respect❤
Becker and doring concept upload sir
Man, I find this 10x more difficult than any other class I've taken. I thought calculus, Thermodynamics, Dynamics, Deform, Fluids, whatever, was pretty easy because If you understand the first principle relationships, you don't have to remember anything... I either just understand so well that it's so obvious that I would never 'remember' or derive it myself, when needed, through first principles. There's just so much information here. I wouldn't even know how to prepare for an exam in this class. Like here's a million ways a defect can happen; if I pull it out of a hat be prepared to tell me about it? Do you have any tips to really imbibe all of this?
I know this is late but I swear you just saved my life I couldn't understand what I had to! You are a life savior!
I’m a dental student and we are studying about the material science to know how prosthetics and orthodontic appliances work! Your video was absolutely brilliant and easy to understand thank you 🙏 I have a question will there be a phase where there is recrystallization with no change in strength and hardness? As in my slides it’s mentioned in the hot-working metals there won’t be change in the hardness unlike the cold-working (increase in hardness and decrease in ductility).
I think if the material undergoes recrystallization you will always see a pretty dramatic change in strength and hardness as well as ductility.
This really was the best video on any topic I've ever watched. Love your channel, you help me a lot.
Heck yeah! Glad that it was helpful
thanks for every new episode
Absolutely my pleasure. We will keep them coming!
Teşekkürler
I am so grateful to have you.
Thank you so much! Please subscribe and share! I will keep creating great materials content
I dont get why do we have nucleus after r star although delta g is positive? Shouldn't Delta G be negative for the nucleus to be stable?
Good question! It is positive, but shrinking makes it more positive whereas growing makes it more negative. So if it's going to do one or the other it's going to continue to grow because that will lower its energy. In other words, just above r star, it is metastable and it has to change, the only question is whether it will change by shrinking or growing.
@TaylorSparks thank you for your guidance. It helped me alot Your videos are a great help in undrestanding complicated lessons❤
@@ghazalhassani7143 it is my pleasure. How cool that via the Internet. I don't just teach my class of 150 students, but rather 30,000 subscribers and growing!!
@@TaylorSparks fantastic
Noice. Thanks
Warm greetings Prof. Spark. Please how can I reach you. I'd need some clarification on Material Science. An email or something would do. Thanks.
[email protected]
If i wanted to learn more about using excel in this way and this type of statistics, what would i take? thanks. I am graduating this month in mechanical at UVU but even in my undergrad, we hardly touched on this stuff, even at SLCC I actually learned more stats in my black belt independent study i did through an online company than i did my schools haha
Probability theory. That's what you want. If you want to keep learning, and since you are in Utah already, you might consider applying to our graduate program.
@@TaylorSparks i have thought about haha. I travel 120 miles one direction for school as i live in Brigham city. But i could check out the U and see. Thanks for replying.
@@LT72884 Salt Lake City is even closer than UVU. Actually, my most recent PhD grad from my group is living up in Brigham City because he works for Northrop Grumman. Once you are done with classes after the first two years, some programs even allow remote work. For example, my students typically do machine learning and so they can work from wherever.
@@TaylorSparks true, i grew up in draper :) but then went to usu for some school before switching majors. Slc is alot closer, even if the u is east. I really enjoy what i have learned about weibull and predictive failure from your videos. Ill start researching more on probability theory
I layed methylnethacrylate which is acrylic floors for years a stinking resin mixed with quartz stone and hardened with bpo peroxide powder which hardens the resin very quickly when mixed .
Nice!
اطرش بالزفة 🥲💔
wow very helpful demo, thank you!
Thanks for this great explanation. I'm confused about ln(ln(1/(1-F)) vs F. If I want to have a 1/1,000,000 chance of failure, I find the log(stress) value corresponding to the F = 1/1,000,000 along the data trendline. I don't use ln(ln(1/(1-F)) for that, right?
amazing