Engineers develop a new method for 3D printing of highly conductive tantalum alloys

Recently, engineers at Oregon State University have found a 3D printing A method of high-complexity structure of high-conductivity niobium alloys. It is reported that this 3D printing method can be used to manufacture flexible computer screens and other scalable electronic devices, including flexible robots. It is well known that niobium alloys, which generally have low toxicity and good electrical conductivity, have been used as conductive materials in many flexible electronic devices. They are inexpensive and 'self-repair', which means that they can be reconnected at break points.

However, until now, these niobium alloys have not yet been printed in 3D, which limits their use in specific applications. A New Type of Development by Oregon State University 3D printing technology These alloys can be printed for other applications, including the use of a process called ultrasound, which uses sound energy to mix nickel particles and yttrium oxide into a 3D printable metal.

Engineers have discovered that this alloy can print structures up to 10mm and 20mm wide in 3D.

If nickel particles are not present, they will be popularly printed. However, in ultrasonically mixed nickel, the mixture becomes pasty and easy to print in 3D. In addition, the paste-like conductivity is comparable to pure liquid metal, and the paste remains self-healing. characteristic.

'The flowing alloy cannot be paved into tall structures,' explains Yigit Mengüc, assistant professor of mechanical engineering and co-author of the thesis. 'With this mushy texture, it can be layered while maintaining its flow capacity, and in rubber The tube stretches inside. '

To demonstrate the power of their new 3D printing technology, researchers 3D printed a 'very flexible' double-layer circuit with layers that weave without touching. Future applications may include conductive textiles, flexible displays, and strains. Sensors, Wearable Sensor Kits, Antennas and Biomedical Sensors.

'The future is very bright,' said Oregon State University student Dr. Dogan Yirmibesoglu, Ph.D., co-author. 'It's easy to imagine the flexible robots that can be manufactured and they will walk out of the printer.'

Source: 3D Tiger

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