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Scientists Produce Complex Glass From 3D Printing

The researchers can change various parameters in each layer, including pore size.

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3D printing or additive manufacturing
3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. Pixabay

Creating glass objects using 3D printing is not easy but a groups of researchers including one of Indian-origin has now used a better technique to produce complex glass objects with addictive manufacturing.

Researchers from ETH Zurich (Swiss Federal Institute of Technology in Zurich) used the method based on stereolithography, one of the first 3D printing techniques developed during the 1980s.

David Moore, Lorenzo Barbera and Kunal Masania in the Complex Materials group led by ETH processor Andre Studart developed a special resin that contains a plastic and organic molecules to which glass precursors are bonded.

The resin can be processed using commercially available ‘Digital Light Processing’ technology.

This involves irradiating the resin with UV light patterns. Wherever the light strikes the resin, it hardens because the light sensitive components of the polymer resin cross link at the exposed points.

3D Printing of molecules in hand
This image shows molecules in hand. The molecular model appears on the computer screen, tumbling and turning in real time as the person holding the object manipulates it. Pixabay

The plastic monomers combine to form a labyrinth like structure, creating the polymer. The ceramic-bearing molecules fill the interstices of this labyrinth, said the team in a paper published in the journal Natural Materials.

An object can thus be built up layer by layer. The researchers can change various parameters in each layer, including pore size.

“We discovered that by accident, but we can use this to directly influence the pore size of the printed object,” said Masania.

These 3D-printed glass objects are still no bigger than a die. Large glass objects, such as bottles, drinking glasses or window panes, cannot be produced in this way “which was not actually the goal of the project,” emphasised Masania.

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The aim was rather to prove the feasibility of producing glass objects of complex geometry using a 3D printing process. However, the new technology is not just a gimmick.

The researchers applied for a patent and are currently negotiating with a major Swiss glassware dealer who wants to use the technology in his company. (IANS)

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84% Indians Hope to Retain Their Jobs Despite Automation: WEF

Indians see automation, but hopeful of keeping jobs

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Indians jobs
Although majority of Indians think their jobs would be automated in the next 10 years, 84 per cent hope to retain their jobs. (Representational Image) Pixabay

Although majority of Indians think their jobs would be automated in the next 10 years, 84 per cent hope to retain their jobs, supported by their skills, according to a report by World Economic Forum (WEF) and Ipsos.

India tops the list in terms of expectation of jobs automation, as around 71 per cent respondents expect their jobs to be automated. Saudi Arabia comes second with 56 per cent respondents expecting jobs getting automated, and in China 55 per cent respondents feel the same.

“Interestingly, 84 per cent of urban Indians polled are confident of keeping their jobs, using the skills they possess. The survey also shows across all markets, Indians are most confident, followed by the Netherlands (83 per cent) and the US (82 per cent),” the report said.

Indians jobs
Indians realise while automation is likely they know it will act as an enabler to improve efficiencies in deliverability. Pixabay

The markets least confident of holding onto their jobs in the face of automation, include Japan (23 per cent), South Korea (33 per cent) and Russia (50 per cent).

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Commenting on the survey, Parijat Chakraborty of Ipsos India said, “Indian job market is hierarchy driven, promotions are skills and performance-led. Indians realise while automation is likely they know it will act as an enabler to improve efficiencies in deliverability; human intellect, skill-sets and capital will still be needed to get the job done.” (IANS)