Featured Research

from universities, journals, and other organizations

Sound waves harnessed to enable precision micro- and nano-manufacturing

Date:
June 24, 2014
Source:
RMIT University
Summary:
In a breakthrough discovery, researchers have harnessed the power of sound waves to enable precision micro- and nano-manufacturing. The researchers have demonstrated how high-frequency sound waves can be used to precisely control the spread of thin film fluid along a specially designed chip.

Researcher Dr Amgad Rezk with the lithium niobate chip.
Credit: Image courtesy of RMIT University

In a breakthrough discovery, researchers at RMIT University in Melbourne, Australia, have harnessed the power of sound waves to enable precision micro- and nano-manufacturing.

Related Articles


The researchers have demonstrated how high-frequency sound waves can be used to precisely control the spread of thin film fluid along a specially-designed chip, in a paper published today in Proceedings of the Royal Society A.

With thin film technology the bedrock of microchip and microstructure manufacturing, the pioneering research offers a significant advance -- potential applications range from thin film coatings for paint and wound care to 3D printing, micro-casting and micro-fluidics.

Professor James Friend, Director of the MicroNano Research Facility at RMIT, said the researchers had developed a portable system for precise, fast and unconventional micro- and nano-fabrication.

"By tuning the sound waves, we can create any pattern we want on the surface of a microchip," Professor Friend said.

"Manufacturing using thin film technology currently lacks precision - structures are physically spun around to disperse the liquid and coat components with thin film.

"We've found that thin film liquid either flows towards or away from high-frequency sound waves, depending on its thickness.

"We not only discovered this phenomenon but have also unravelled the complex physics behind the process, enabling us to precisely control and direct the application of thin film liquid at a micro and nano-scale."

The new process, which the researchers have called "acoustowetting," works on a chip made of lithium niobate - a piezoelectric material capable of converting electrical energy into mechanical pressure.

The surface of the chip is covered with microelectrodes and the chip is connected to a power source, with the power converted to high-frequency sound waves. Thin film liquid is added to the surface of the chip, and the sound waves are then used to control its flow.

The research shows that when the liquid is ultra-thin - at nano and sub-micro depths -- it flows away from the high-frequency sound waves.

The flow reverses at slightly thicker dimensions, moving towards the sound waves. But at a millimetre or more in depth, the flow reverses again, moving away.

Video: http://www.youtube.com/watch?v=IQ762VTxD2g&feature=youtu.be


Story Source:

The above story is based on materials provided by RMIT University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Amgad R. Rezk, Ofer Manor; Leslie Y. Yeo, and James R. Friend. Double Flow Reversal in Thin Liquid Films Driven by MHz Order Surface Vibration. Proceedings of the Royal Society A, 25 June 2014

Cite This Page:

RMIT University. "Sound waves harnessed to enable precision micro- and nano-manufacturing." ScienceDaily. ScienceDaily, 24 June 2014. <www.sciencedaily.com/releases/2014/06/140624092522.htm>.
RMIT University. (2014, June 24). Sound waves harnessed to enable precision micro- and nano-manufacturing. ScienceDaily. Retrieved December 17, 2014 from www.sciencedaily.com/releases/2014/06/140624092522.htm
RMIT University. "Sound waves harnessed to enable precision micro- and nano-manufacturing." ScienceDaily. www.sciencedaily.com/releases/2014/06/140624092522.htm (accessed December 17, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Wednesday, December 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Sony Hopes To Make Any Glasses 'Smart'

How Sony Hopes To Make Any Glasses 'Smart'

Newsy (Dec. 17, 2014) Sony's glasses module attaches to the temples of various eye- and sunglasses to add a display and wireless connectivity. Video provided by Newsy
Powered by NewsLook.com
Los Angeles Police To Receive 7,000 Body Cameras

Los Angeles Police To Receive 7,000 Body Cameras

Newsy (Dec. 17, 2014) Los Angeles Mayor Eric Garcetti announced the cameras will be distributed starting Jan. 1. Video provided by Newsy
Powered by NewsLook.com
Jaguar Unveils 360 Virtual Windshield Making Car Pillars Appear Transparent

Jaguar Unveils 360 Virtual Windshield Making Car Pillars Appear Transparent

Buzz60 (Dec. 17, 2014) Jaguar unveils a virtual 360 degree windshield that may be the most futuristic automotive development yet. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Researchers Bring Player Pianos Back to Life

Researchers Bring Player Pianos Back to Life

AP (Dec. 17, 2014) Stanford University wants to unlock the secrets of the player piano. Researchers are restoring and studying self-playing pianos and the music rolls that recorded major composers performing their own work. (Dec. 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins