A Flexible Material | The Glass Age | Innovation | Corning.com

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Design & Application

Design & Application

Design & Application

Article contributed by Chris Lefteri

Glass: A Flexible Material

Glass: A Flexible Material

Chris Lefteri examines new strides in glass, the once fragile and brittle material that, through technology, offers both flexibility and transparency, and as such is guaranteeing its place in the future. Lefteri, a designer and author, has helped some of the world’s largest consumer brands formulate new strategies for effective materials integration during the design process.

I was once told that the most searched-for property on a particular online materials database was transparency, and if the trend continues against petroleum-based plastic — the other material family capable of transparency — then maybe the future belongs to glass. But it’s not just this slice of metadata that is significant, rather the massive rise in the use of this material family across all forms of design that is both connecting the world and disrupting our understanding of glass.

Its transparency has allowed it to become the backbone of the digital age silently and quietly, yet it is in the foreground of many aspects of our daily routines, mostly without us noticing its abundance and importance. At the same time giant shards are used to spectacular visual effect as a building material. From the planet’s interactive touch-sensitive screens, phones, tablets, phablets, games, laptops, in-flight entertainment screens, information points in city hubs, and TVs to fibre optics that transmit and connect data and these devices, through to the more heroic, press-worthy case studies, such as glass that is self-cleaning or the optical building facades of James Carpenter. Glass is the material with which technology and the built world is powering ahead.

One of the reasons it is increasingly used in such abundance is that science has reached a point where it can change the physical characteristics of glass altogether to make it more suitable to our specific needs. By tweaking its molecular makeup and combining it with other materials we can enhance its properties and ‘mend’ some of its inherent flaws, the very flaws that define it as a brittle material. Not only are new grades being developed, but entirely new breeds of glass are being conceived.

Take for instance USA-based Corning, which is achieving some remarkable performance-enhancing feats with many new glass formulations. One example is Willow Glass, a sheet glass that combines ultra-thin (0.1mm) capabilities and lightness in weight with the durability and hardness of conventional soda-lime glass. This has given resurgence to a material born in antiquity and allowing it to forge an alliance with new technologies. Applicable to consumer electronics, interior paneling and appliances, Willow Glass can provide scratch-resistant surface for electronics and when laminated to less durable substrates (it’s so thin it is sold on a roll) it gives an extremely durable coating. As with Gorilla Glass, Corning’s better known thin and tough glass, it is being applied to interiors, architecture (paneling on lifts), automotives and billions of mobile phones.

It is facilitating the creation of environments that are not only changing our notions of glass but also redefining what is a passive and what is an interactive surface. In the future we will see these lightweight and strong breeds of glass being used more in applications that exploit smart surfaces and interactive touch in walls and paneling, potentially leading to a hybrid of interactive home appliances and interior spaces. Through these new glasses buildings and products will become smarter, linking the digital and physical in new ways.

It is through these technologies that glass is being redefined. No longer is it just the rigid and brittle material that we are familiar with — it is taking on properties of other material families. Fibrance Light Diffusing Fibre for example is an optical fibre that came out of research in fibre optics that instead of trying to retain light, looked at what happened when that light is allowed to escape the walls of the fibres. The result is a 0.5mm diameter glass that transmits light from a single source at one end of the fibre, evenly across its whole length. This wire of light is so thin it can be wrapped around your finger without breaking, and allows for light to be carried into wet, temperature-sensitive areas and other difficult-to-access areas using traditional and even other non-traditional forms of light.

The fragility of glass has always made it seem precious and valuable, revered because it could so easily be destroyed, but gone are the days of its perceived fragility and brittleness when a simple slip up could turn a piece into thousands of shards. This dual personality of fragility and a new toughness is one of the unique characteristics of glass, where the mundane is transformed into the precious simply by the way that it is processed. You could even say that glass is defined by its processing: blow it by hand and it becomes a beautiful, sculptural and almost magical form, yet change its chemical make up and draw it into thin fibres and it proliferates the connectivity of objects, information and society. But ultimately what lies behind glass is its very essence, the transparency that is propelling it into the future.

This article was first published in Blueprint Magazine.

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