Materials innovation has a scale-up problem, not discovery

m_m_carvalho

In software, AI seems to have inverted the equation. Building is cheap. Distribution, differentiation and discovering unmet demand are becoming the expensive parts.

groznyj

also, append `?tune` for fun times!

kergonath

> THE MATERIALS OF THE FUTURE ALREADY EXIST IN THE LAB Do they? There’s plenty of stuff in our labs, most of them are completely useless, some that were bought to be useless become fashionable again, and we get new and exciting ones every day. There are a lot of issues in going from concept to useable material, and "scaling up" is only one of them. > FRONTIER INTELLIGENCE WILL BRING THEM TO THE WORLD. It will probably help, but I doubt it will do it by itself. > Put simply, materials innovation has a scale-up problem, not a discovery problem. I just don’t think that’s true. It’s also a scale-up problem, but discovery itself is not solved. The problem spaces keep getting larger (composites! nanostructures! High-entropy!). High-throughput thermodynamic and electronic structure calculations, automated characterisation and testing, and things like that are being developed because we just don’t know what materials could exist and what could be their properties. The problem is that while there is room for AI there, particularly in automation, even cutting edge models are very dodgy to extrapolate materials properties outside their training sets, which are utterly negligible compared to the size of the search space. > The bottleneck has never been a shortage of promising candidate materials. It is the decades of trial and error it takes to manufacture even one of them reliably. It’s worse than that. The first sentence is true (ideas are cheap), but the main bottleneck is to try to figure out the properties of the damn thing and whether some of them are deal breakers or not. The vast majority of materials we come up with never see any application, not because we don’t have processes at the right scale, but because they just have terrible properties.

osnium123

Very promising but I think it’s more important for “cheaper” technologies. For cutting edge 2nm logic where Angstrom level uniformity is required, the tool vendors like AMAT, KLA, Onto have invested in metrology and data synchronization. For cheaper technologies like III-V compound semiconductors where the tools are smaller and less sophisticated, this could be very beneficial.

whycome

Starlite what?

rsfern

Lab to product scale-up is a well known hard problem in materials (and chemistry), lots of public and private investment has been aimed at accelerating this for decades I think the distinction between discovering a material and processing / scaling it up is a bit artificial. A lot of people think of a new material as just the crystal structure or something, but really all the defects and complex multiscale structure is just as much part of what defines a material, and controlling all that is why materials development is hard, and why you need so many different complementary measurements to understand what’s going on I was a bit underwhelmed by this writeup because it’s a bit generic. I didn’t really see any specific new ideas on how to accelerate this process, or to differentiate from the main stream of materials discovery research which has been pretty dominantly AI forward for at least five years now EDIT: I checked out some of their case studies and they’re pretty interesting and exploring some new materials characterizations territory. They’d be more impactful if they were more than just text IMO but much more concrete and less generic than the linked post

sfifs

Materials science fundamentally has a math & computability problem. Rigorous materials simulations at a nanometre scale seem now feasible - so you could model physical properties of small groups of atoms - eg. Modeling molecular reactions at a sub-atomic level. Bulk property simulations at a centi and up scale also work and so you can do first principles based design and use tricks like finite element methods to deal with the underlying stochasticity to a degree. Materials properties however largely arise from features between nano and micro scale - grain boundaries, dislocations etc. These are computationally infeasible today - there are neither engineering solutions, not math tricks that make this tractable and so materials science and engineering becomes a grind of experimentation and metrology. This is interesting in that it seems to be making the grind more efficient. I think the true breakthrough will likely be proper scale quantum computing to make the first principles design feasible

cpldcpu

>When Intel finally shipped it at the 45-nanometer node in 2007, Gordon Moore called it the biggest change in transistor technology since the late 1960s. The breakthrough was not the material. It was learning how to process the material at scale. Its curious that they picked this example. The challenge with HKMG was not the material itself, but how to integrate into into the transistor stack. There were two completely different approaches: Gate first and replacement gate. Gate first is what the industry was already using for silicon oxide so everybody tried to go with as little change as possible. Only intel decided for replacement gate, which worked much better and reaped some other benefits on the way. This was a watershed moment in the industry and ultimately led to some of the players dropping out of the cmos race. But is this really a "scale-up" problem? It required development of novel manufacturing processes (atomic layer deposition), but was still mainly a process integration and device engineering topic. The part of the thesis I have to agree with is that there is a data problem. The development above relies on executing lots of time consuming and tedious split experiments that often cannot be parallelized. The outcome of this relies heavily on the experience and diligence of the experimenters. It's probably well suited for an "autoresearch" approach, bridging to the phyiscal world and dealing with the timescale is the challenge.