Temperature-induced film deformation produces teeth-like structures - 0 views
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Thin films can buckle round curved substrates to form gears for micromachines
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Until now, making microgears has required expensive etching and micromachining. Chen's method only requires a change in temperature - no external guidance is required.
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The team have made gears with diameters of 6 millimetres but they are keen to go smaller and make true microgears that could be used in biomedical engineering or aerospace.
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