Roger's Equations Blog

Roger's Equations

This blog is all about science and technology (with occasional math thrown in for fun). The goal of this blog is to try and pass on the sense of excitement and wonder I feel when I read about these topics. I hope you enjoy the posts.

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Glass As Strong As Steel

Posted November 03, 2015 8:57 AM by Bayes

Corning Museum of Glass

Before getting to the news, I just wanted to recommend the Corning Museum of Glass to anyone who hasn't been there. If you're in the finger lakes region of NY ever, it's worth half a day. Pretty amazing place filled with Art and Science and the town is pretty cool too.

The Glass is Half Full?

Seems like every few months some new type of glass comes out that is tougher than previously discovered glasses. Scientists in Japan are keeping the evolution of glass going with their latest find, glass that is 50% alumina and hard as steel. See the article below:

Scientists develop 'unbreakable' glass almost as tough as steel

Japanese researchers have developed a new type of glass almost as hard as steel, a breakthrough that could lead to the development of substantially tougher windows and tableware."We will establish a way to mass-produce the new material shortly," said Atsunobu Masuno, an assistant professor at the University of Tokyo's Institute of Industrial Science. "We are looking to commercialize the technique within five years."

Oxide glass mainly consists of silicon dioxide, with its strength boosted by mixing in alumina, an oxide of aluminum. But it had been difficult for scientists to form glass containing a large amount of alumina because the oxide causes crystallization when the glass comes into contact with its container.The scientists bypassed this problem by using a containerless processing technique.

Article Continues Here

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#1

Re: Glass As Hard As Steel

11/03/2015 12:25 PM

Roger, you might want to edit your blog title to "Glass As Tough As Steel" because as it stands now, glass is already harder than most if not all steels.

Cheers!

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#4
In reply to #1

Re: Glass As Strong As Steel

11/04/2015 12:13 AM

You make a good point. Really this breakthrough is about creating glass as strong as steel, not as hard as steel.
https://www.youtube.com/watch?v=xaVgRj2e5_s (Star Trek was close on this one)

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#2

Re: Glass As Hard As Steel

11/03/2015 12:52 PM

Maybe they could make a bubble top that would get rid of all the blind spots from the roll-over bracing in modern cars!

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#3

Re: Glass As Hard As Steel

11/03/2015 10:42 PM

Been there in 2001. Great place.

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#5

Re: Glass As Strong As Steel

11/04/2015 5:26 PM

Saw a demonstration many years ago wherein a glass flask was used to pound nails into a board; but when a pea-sized drop of metal was dropped into the flask, it shattered into thousands of pieces. It was defined as being due to the differences in tempering rate for the piece.

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#6
In reply to #5

Re: Glass As Strong As Steel

11/04/2015 6:43 PM

There is another similar phenomena known as Prince Rupert's Drops or Dutch Tears.

https://en.wikipedia.org/wiki/Prince_Rupert's_Drop

This is something I'd like to try someday. Maybe even include it as part of a STEM demonstration for students. Trick is to keep everything safe enough for the lawyers.

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