Perhaps no startup was launched for a more intriguing reason than that of Northeastern’s Hanchen Huang. From the company website:
“MesoGlue was founded by Huang and two of his PhD students: They had a dream of a better way of sticking things together.”
Those “things” are everything from a computer’s central processing unit and a printed circuit board to the glass and metal filament in a light bulb. The “way” of attaching them is, astonishingly, a glue made out of metal that sets at room temperature and requires very little pressure to seal. “It’s like welding or soldering but without the heat,” says Huang, who is professor and chair in the Department of Mechanical and Industrial Engineering.
In a new paper, published in the January issue of Advanced Materials & Processes, Huang and colleagues, including Northeastern doctoral student Paul Elliott, describe their latest advances in the glue’s development. Our curiosity was piqued: Soldering with no heat? We asked Huang to elaborate.
On new developments in the composition of the metallic glue:
“Both ‘metal’ and ‘glue’ are familiar terms to most people, but their combination is new and made possible by unique properties of metallic nanorods—infinitesimally small rods with metal cores that we have coated with the element indium on one side and galium on the other. These coated rods are arranged along a substrate like angled teeth on a comb: There is a bottom ‘comb’ and a top ‘comb.’ We then interlace the ‘teeth.’ When indium and galium touch each other, they form a liquid. The metal core of the rods acts to turn that liquid into a solid. The resulting glue provides the strength and thermal/?electrical conductance of a metal bond. We recently received a new provisional patent for this development through Northeastern University.”
On the special properties of the metallic glue:
“The standard polymer glue does not function at high temperatures or high pressures, but the metallic glue does. The standard glue is not a great conductor of heat and/?or electricity, but the metallic glue is. Furthermore, the standard glue is not very resistant to air or gas leaks, but the metallic glue is.
“‘Hot’ processes like soldering and welding can result in metallic connections that are similar to those produced with the metallic glue, but they cost much more. In addition, the high temperature necessary for these processes has deleterious effects on neighboring components, such as junctions in semiconductor devices. Such effects can speed up failure and not only increase cost but also prove dangerous to users.”
What are some applications of the technology?
“The metallic glue has multiple applications, many of them in the electronics industry. As a heat conductor, it may replace the thermal grease currently being used, and as an electrical conductor, it may replace today’s solders. Particular products include solar cells, pipe fittings, and components for computers and mobile devices.”
The Latest on: Metallic glue
via Google News
The Latest on: Metallic glue
- Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reactionon October 30, 2019 at 3:29 am
Both XAS spectra and first-principles calculations indicate that the Pt–Ru dimers complex contains Pt–Ru bonding. Furthermore, the first-principles calculation reveals that the Pt–Ru dimer could be ...
- Best Wood Glueon October 29, 2019 at 9:24 am
This glue forms strong bonds on clean breaks of non-porous materials. You can use this around the house or outside the house, as it will help you clean up wood, ceramic, fingernails, metal, pottery, ...
- Spinal Tap’s Derek Smalls talks about bringing his all-star solo show to the Wiltern in Los Angeleson October 28, 2019 at 8:25 pm
I don’t know if you’ve heard of him, he has a near-death metal band called Chainsaw Vermin ... “Bass players, we have a responsibility in a world of irresponsibility. We’re the bloody glue. Glue, that ...
- Carbon fiber/epoxy for automotive mass reduction, mass productionon October 24, 2019 at 9:10 pm
One of the first applications evaluated was use of a carbon fiber/epoxy prepreg on the B-pillar of a test vehicle. The high-performance prepreg material directly reduced mass by 3 kilograms and ...
- Glue Isn’t Proof Of Neanderthal Intelligence - It Was Easy To Makeon October 22, 2019 at 12:58 pm
But a new study shows that there is a very simple way to make the glue. Prior researchers had experimented with pits, clay structures, ash mounds, and metal and ceramic vessels as means to heat the ...
- Composite metal foam beneficial for aerospace manufacturingon October 22, 2019 at 12:16 am
Research from North Carolina State University that a combination of steel composite metal foam (CMF) and epoxy resin has more desirable characteristics for use as a leading-edge material than the ...
- Best Glue for Plastic Car Parts: Don’t Replace It, Fix Iton October 21, 2019 at 1:01 pm
Fast, strong bonding. Repairs broken parts but also can be used as a crack ... To clean residue off of a surface, carefully scrape off as much of the material as you can using a stiff plastic or a ...
- Composite metal foam outperforms aluminum for use in aircraft wingson October 21, 2019 at 7:55 am
The leading edges of aircraft wings have to meet a very demanding set of characteristics. New research shows that a combination of steel composite metal foam (CMF) and epoxy resin has more desirable ...
- Blackstar LT Metal Ultra High Gain distortion Guitar Effects Pedal ISF Free 2-day priority shippingon October 21, 2019 at 2:08 am
Thank you! All of our guitar and bass speaker cabs have been in our product line up for over a decade. We do not use staples, glue and multi ply mystery wood. All of our guitar and bass cabs and ...
- Quadruple bonding between iron and boron in the BFe(CO) 3 − complexon October 17, 2019 at 2:15 am
Chemical bonding is among the most fundamental concepts in modern chemistry. Depending upon the availability of valence orbitals and electrons, an atom can form single or multiple covalent chemical ...
via Bing News