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Few recognise the vast implications of materials science.
For example, according to Omkaram Nalamasu, CTO of ‘Applied Materials’, to build a 2020 smartphone in the 1980s it would cost about $110 million.
Also, it would require almost 200 kilowatts of energy, compared to 2kW per year today.
Finally, the device would be 14 meters tall. That’s the power of materials advances.
Materials science has democratised everything, from smartphones to fashion.
It has brought portable technology to the pockets of over 3.5 billion people and has dressed the entire world without depleting its resources.
Materials science stands at the centre of several breakthroughs across multiple industries: energy, future cities, transit, fashion, and medicine.
And at the forefront of Covid-19, materials scientists are forging ahead.
As the name suggests, materials science is the branch devoted to the discovery and development of new materials.
It’s an outgrowth of both physics and chemistry, using the periodic table as its grocery store and the laws of physics as its cookbook.
And today, we are in the middle of a materials science revolution.
In this article, we’ll unpack the most critical materials advancements happening now.
Let’s dive in.
The Materials Genome Initiative
In June 2011 at Carnegie Mellon University, President Obama announced the Materials Genome Initiative, a nationwide effort to use AI and open source to double the pace of innovation in materials science.
Obama felt this acceleration was critical to the US’s global competitiveness and held the key to solving significant challenges in clean energy, national security, and human welfare.
And, it worked.
The initiative used AI to map hundreds of millions of different possible combinations of elements, such as hydrogen, boron, lithium, carbon, and many more.
The initiative created an enormous database that lets scientists play a kind of improv-jazz with the periodic table.
This new map of the physical world lets scientists combine elements faster than ever before and is helping them create all sorts of novel components and materials.
And an array of new fabrication tools are further amplifying this process, allowing us to work at altogether new scales and sizes, including the atomic scale, where we’re now building materials, one atom at a time.
Biggest Materials Science Breakthroughs
The AI has helped create the ‘metamaterials’ used in carbon fibre composites for lighter-weight vehicles.
AI advanced alloys are found in durable jet engines and even in human implantables.
With the help of AI, we also see breakthroughs in energy storage and quantum computing.
In robotics, new materials are helping us create the artificial muscles needed for humanoid, soft robots—think Westworld in your world.
Let’s unpack some of the leading materials science breakthroughs of the past decade.
Nanotechnology is the outer edge of materials science, the point where matter manipulation gets nano-small.
That’s a million times smaller than an ant, 8,000 times smaller than a red blood cell, and 2.5 times smaller than a strand of DNA.
Nanobots are machines that can be directed to produce more of themselves or more of whatever else you’d like.
And because this takes place at an atomic scale, these ‘nanobots’ can pull apart any material: soil, water, or air, atom by atom.
Then, it can use these now raw materials to construct just about anything.
Progress has been surprisingly swift in the nano-world, with a bevvy of nano-products now on the market.
Never want to fold clothes again?
Nanoscale additives to fabrics help them resist wrinkling and staining. Don’t do windows? Not a problem!
Nano-films make windows self-cleaning, anti-reflective, and capable of conducting electricity.
Want to add solar to your house? We’ve got nano-coatings that capture the sun’s energy.
Nanomaterials make lighter automobiles, aeroplanes, baseball bats, helmets, bicycles, luggage, power tools—the list goes on.
Researchers at Harvard built a nanoscale 3D printer capable of producing miniature batteries less than one millimetre wide.
And if you don’t like those bulky VR goggles, researchers are now using nanotech to create smart contact lenses with a resolution six times greater than that of today’s smartphones.
Right now, in medicine, drug delivery nanobots are proving especially useful in fighting cancer.
Computing is a stranger story, as a bioengineer at Harvard recently stored 700 terabytes of data in a single gram of DNA.
On the environmental front, scientists can take carbon dioxide from the atmosphere and convert it into super-strong carbon nanofibers for use in manufacturing.
If we can do this at scale—powered by solar—a system one-tenth the size of the Sahara Desert could reduce CO2 in the atmosphere to pre-industrial levels in about a decade.
Thanks to AI, the applications are endless and are coming fast.
Moreover, over the next decade, the AI’s impact is about to reach unseen heights, on all industries.
Next Level Batteries
The lithium-ion battery, which today powers everything from our smartphones to our autonomous cars, was conceived in the 1970s.
It couldn’t make it to market until the 1990s and didn’t begin to reach maturity until the past few years.
An exponential technology, these batteries have been dropping in price for three decades.
The price has been plummeting 90 per cent between 1990 and 2010, and 80 per cent since.
Concurrently, they’ve seen an eleven-fold increase in capacity.
But producing enough batteries to meet demand has been an ongoing problem.
But, with the help of AI Tesla has stepped up to the challenge as the company’s Gigafactory in Nevada churns out 20 gigawatts of energy storage per year.
Tesla is now marking the first time-ever lithium-ion batteries at an industrial scale.
Musk predicts 100 Gigafactories could store the energy needs of the entire globe.
Other companies are moving quickly to integrate this technology as well.
For example, Renault is building a home energy storage based on their Zoe batteries.
Then, BMW’s 500 i3 battery packs are being integrated into the UK’s national energy grid.
And, Toyota, Nissan, and Audi have all announced similar AI pilot projects.
Right now, lithium-ion batteries play a significant role in renewable energy storage by bringing down solar and wind energy prices to compete with those of coal and gasoline.
Derived from the graphite core found in everyday pencils, graphene is a sheet of carbon just one atom thick.
It is nearly weightless, but 200 times stronger than steel.
Conducting electricity and dissipating heat faster than any other known substance, this super-material has transformative applications.
Graphene enables sensors, high-performance transistors, and even gel that helps cell brains to communicate in the spinal cord.
Many flexible device screens, drug delivery systems, 3D printers, solar panels, and protective fabric use graphene.
As manufacturing costs decrease, this material has the power to accelerate the advancements of all kinds.
Right now, the “conversion efficiency” of the average solar panel – a measure of how much-captured sunlight can be turned into electricity – hovers around 16 per cent.
That is the cost of roughly $3 per watt.
Perovskite, a light-sensitive crystal and one of our newer new materials, has the potential to get that up to 66 per cent, which would double what silicon panels can muster.
Perovskite’s ingredients are widely available and inexpensive to combine. What do all these factors add up to? Affordable solar energy for everyone.
With the help of artificial intelligence and quantum computing over the next decade, the discovery of new materials will accelerate exponentially.
And with these discoveries, customised materials will grow commonplace.
Future knee implants will be personalised to meet the exact needs of each body, both in terms of structure and composition.
Though invisible to the naked eye, nanoscale materials will integrate into our everyday lives, seamlessly improving medicine, energy, smartphones, and more.
Ultimately, the path to demonetisation and democratisation of advanced technologies starts with re-designing materials, an invisible enabler and catalyst.
As such, our future depends a lot on the next generation of materials we are going to create.
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