Engineering Materials
37 views | +0 today
Follow
Your new post is loading...
Your new post is loading...
Scooped by Jennifer G
Scoop.it!

Cera-Fan Composites - Manufacturing and Applications - Azom.com

Cera-Fan Composites - Manufacturing and Applications - Azom.com | Engineering Materials | Scoop.it
Cera-Fan Composites - Manufacturing and Applications
Azom.com
The power industry has used alumina ceramics as a cost-effective, wear-resistant material for a long time.
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

'Poisoning' corrosion brings stainless magnesium closer -

'Poisoning' corrosion brings stainless magnesium closer - | Engineering Materials | Scoop.it
In a discovery that could have major implications for the aerospace, automotive and electronics industries, scientists have found a way to dramatically reduce the corrosion rate of lightweight won ...
more...
No comment yet.
Rescooped by Jennifer G from Amazing Science
Scoop.it!

Shattered glass: New theory explains how things break

Shattered glass: New theory explains how things break | Engineering Materials | Scoop.it

Shattering a glass is a completely different experience than breaking a seashell, and Cornell physicists offer a notion – at the microscale – to explain why.

 

A new, unified theory of fracture is detailed in a Physical Review Letters paper published April 29, with senior author James P. Sethna, professor of physics, graduate student Ashivni Shekhawat, and Stefano Zapperi of CNR Milan. The paper was selected by the journal as an “Editor’s Choice.”

 

Glass, say the researchers, is a “clean” system that breaks abruptly in one nucleated event when the weakest spot fails. But materials like bones, seashells and composites, called disordered media, can have multiple microcracks that form and grow before the final failure. The researchers provided a universal scaling theory for this distributed damage that explains fundamentally why these types of materials break so differently.

Previous theories had held that a phase transition separates abrupt fracture in clean systems like glass, and fracture with substantial distributed damage, like bone.

 

The Cornell scientists instead offer the theory of a smoother crossover between abrupt fracture at low disorder (glass), and accumulation of distributed damage at high disorder (seashell), using universal scaling functions. Bones, seashells and modern composite materials are tougher than glass because of this phenomenon of distributed damage. The researchers show how disorder leads to damage for small systems, and catastrophic crack nucleation at longer length scales.


Via Dr. Stefan Gruenwald
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

Building Homes from Composite Materials - agentright blog USA

Building Homes from Composite Materials - agentright blog USA | Engineering Materials | Scoop.it
Take a look around your neighbourhood and you will see that homes have been built from the same types of materials for over a century.
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

MIT 3D Prints Tough, Bone-Like Composite - Design News

MIT 3D Prints Tough, Bone-Like Composite
Design News
Printing composite materials from a 3D printer that engineers can actually use to build something may be closer than you think.
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

Smile! All-ceramic dental restorations take a bite out of other materials

Smile! All-ceramic dental restorations take a bite out of other materials | Engineering Materials | Scoop.it
Options include precious metals, porcelain fused to metal (PFM), and ceramics, and dental professionals often use different types of crowns depending on aesthetic and other considerations such as the location of the crown in ...
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

Stainless magnesium breakthrough bodes well for manufacturing industries - Gizmag

Stainless magnesium breakthrough bodes well for manufacturing industries - Gizmag | Engineering Materials | Scoop.it
Stainless magnesium breakthrough bodes well for manufacturing industries
Gizmag
Magnesium alloys are very attractive for a range of weight-sensitive applications.
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

What are ceramics? | Sciencelearn Hub

What are ceramics? | Sciencelearn Hub | Engineering Materials | Scoop.it
Jennifer G's insight:

Read this for a quick introduction before the nex lecture.

more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

How it's made - Ceramic tiles

How it's made - Ceramic tiles (EPS 13 - 52). Ceramic tiles, nuts, steel forgings and skateboards. More everyday items are put under the microscope as we disc...
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

Injection Moulding of Plastics

This site provides a wealth of technology information sheets for pupils and teachers
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

MIT's carbon fiber 'Lego bricks' can be fashioned into airplanes ...

MIT's carbon fiber 'Lego bricks' can be fashioned into airplanes ... | Engineering Materials | Scoop.it
Interestingly, unlike almost every other object made from composite materials, objects made from MIT's new structure can be easily disassembled or have individual “bricks” replaced when they break. “Can you 3D-print an ...
more...
No comment yet.
Scooped by Jennifer G
Scoop.it!

New rinse rack fights aircraft corrosion - Florida Times-Union

New rinse rack fights aircraft corrosion - Florida Times-Union | Engineering Materials | Scoop.it
Florida Times-Union
New rinse rack fights aircraft corrosion
Florida Times-Union
“Corrosion prevention and control affects both the cost and availability of naval aircraft.
more...
No comment yet.