PNAS Archives | The American Ceramic Society

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A new spin on additive manufacturing: Rotational 3-D printing controls fiber orientation to print stronger functional composites

By April Gocha / January 18, 2018

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences have developed a novel 3-D printing technique that adds another dimension of control to additively manufactured composites—local microstructural control.

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3-D-printed ceramic foams build tailored cellular structures with dual-level porosity

By April Gocha / March 2, 2017

Researchers at Harvard University and Massachusetts Institute of Technology have devised a procedure for fabricating ceramic foams that can be used to 3-D print cellular materials that combine both microscale and macroscale porosity.

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Sponges anchor glass houses with precisely engineered glass hairs

By April Gocha / April 15, 2015

New research from Brown University shows that although the glass sponge’s anchoring fibers are thin and fragile-looking, they are engineered for maximal strength.

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Unique crystals prevent crack propagation and bestow strength to ancient Roman concrete

By April Gocha / January 6, 2015

A new study confirms that unique aluminum-containing crystals that form in Roman concrete are behind the material’s robust strength and durability.

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Phase-change materials and correlated oxides gain ground on silicon for top spot in future electronics

By April Gocha / September 30, 2014

Silicon has long reigned supreme in electronics. But the wonder material is quickly approaching its limit in devices that long to be smaller, run faster, and do more—so new emerging materials are quickly entering the race to replace silicon.

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Strong yet light: Ceramic-polymer composite microstructures built using 3D laser lithography

By April Gocha / February 12, 2014

German group builds high-strength low-density ceramic-polymer composite microstructures using 3D laser lithography.

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Other materials stories that may be of interest

By Eileen De Guire / February 26, 2013

Some other stories and papers worth looking into: Coupling the valley degree of freedom to antiferromagnetic order (PNAS) The exploration of novel electronic degrees of freedom has important implications in both basic quantum physics and advanced information technology. Valley, as a new electronic degree of freedom, has received considerable attention in recent years. In this…

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Other materials stories that may be of interest

By / October 30, 2012

This 3D image of a ceramic composite specimen imaged under load at 1,750°C shows the detailed fracture patterns that LBNL researchers are able to view using ALS Beamline 8.3.2. The vertical white lines are the individual silicon carbide fibers in this sample about 500 microns in diameter. Credit: LBNL. When you have some extra time,…

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Other materials science stories that may be of interest

By / August 21, 2012

Check ’em out: September California workshop to explore plans for National Network for Manufacturing Innovation The Advanced Manufacturing National Program Office, in partnership with state and national organizations, is inviting interested parties to the third in a series of regional workshops to introduce and encourage public discussion of a planned National Network for Manufacturing Innovation.…

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Other materials science stories that may be of interest

By / August 14, 2012

Lots of interesting work happening out there: Making “renewable” viable: Drexel engineers develop new technology for grid-level electrical energy storage A team of researchers from Drexel University’s College of Engineering has developed a new method for quickly and efficiently storing large amounts of electrical energy. The researchers are putting forward a plan to integrate into the…

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