Navigation Links
Lightweight construction materials of highest stability thanks to their microarchitecture
Date:3/21/2014

This news release is available in German.

KIT researchers have developed microstructured lightweight construction materials of highest stability. Although their density is below that of water, their stability relative to their weight exceeds that of massive materials, such as high-performance steel or aluminum. The lightweight construction materials are inspired by the framework structure of bones and the shell structure of the bees' honeycombs. The results are now presented in the journal PNAS, DOI: 10.1073/pnas.1315147111.

"The novel lightweight construction materials resemble the framework structure of a half-timbered house with horizontal, vertical, and diagonal struts," says Jens Bauer, Karlsruhe Institute of Technology (KIT). "Our beams, however, are only 10 m in size." In total, the lightweight construction elements are about 50 m long, wide, and high.

"Nature also uses open-pore, non-massive structures for carrying loads," Oliver Kraft, KIT, explains. Examples are wood and bones. At the same density, however, the novel material produced in the laboratory can carry a much higher load. A very high stability was reached by a shell structure similar to the structure of honeycombs. It failed at a pressure of 28 kg/mm2 only and had a density of 810 kg/m3. This exceeds the stability / density ratio of bones, massive steel, or aluminum. The shell structure produced resembles a honeycomb with slightly curved walls to prevent buckling.

To produce the lightweight construction materials, 3D laser lithography was applied. Laser beams harden the desired microstructure in a photoresist. Then, this structure is coated with a ceramic material by gas deposition. The structures produced were subjected to compression via a die to test their stability.

Microstructured materials are often used for insulation or as shock absorbers. Open-pore materials may be applied as filters in chemical industry.


'/>"/>

Contact: Monika Landgraf
presse@kit.edu
49-721-608-47414
Helmholtz Association
Source:Eurekalert  

Related biology news :

1. Manufacturing crack-resistant lightweight components
2. Fetal umbilical vein for reconstruction of middle cerebral artery
3. Fonetic Adds Voice Biometrics To Its Award-Winning Dodd-Frank Record Keeping Compliance and Trade Reconstruction Solution
4. Penn and Drexel team demonstrates new paradigm for solar cell construction
5. Assessing noise impact of offshore wind farm construction may help protect marine mammals
6. Gene transduction inhibits post-epileptic hippocampal synaptic reconstruction
7. Towards more sustainable construction
8. Frontiers launches a new open-access journal: Frontiers in Materials
9. New process uses recyclable catalyst to create porous materials
10. Scientists turn primitive artificial cell into complex biological materials
11. Carbon dioxide paves the way to unique nanomaterials
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lightweight construction materials of highest stability thanks to their microarchitecture
(Date:2/27/2017)... 27, 2017   Strategic Cyber Ventures , the ... led a $3.5 million investment in  Polarity , the ... Ventures is DC based and is led by cybersecurity ... . Ron Gula , also a longtime cybersecurity ... in this series A round of funding. This new ...
(Date:2/22/2017)... 2017 With the biometrics market to ... four technologies that innovative and agile startups must ... in the changing competitive landscape: multifactor authentication (MFA), ... "Companies can no longer afford to ... Dimitrios Pavlakis , Industry Analyst at ABI ...
(Date:2/16/2017)... FRANCISCO , Feb. 16, 2017  Genos, ... today announced that it has received Laboratory Accreditation ... CAP Accreditation is presented to laboratories that meet ... who demonstrate scientifically rigorous processes. "Genos ... excellence in laboratory practices. We,re honored to be ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... ... March 28, 2017 , ... T3D ... a new orally administered treatment for Alzheimer’s disease (AD), today announced that Dr. ... “As we seek to uniquely treat the metabolic dysfunctions inherent in Alzheimer’s disease ...
(Date:3/27/2017)... March 27, 2017 Roka Bioscience, Inc. (NASDAQ: ROKA), ... for the detection of foodborne pathogens,  today announced that ... Company Spring 2017 Convention on March 29 at 9:50am ET. ... Marquis. About Roka Bioscience ... Roka Bioscience is ...
(Date:3/27/2017)... Properties (NYSE: CUZ ) announced today that Amgen, ... 10-year, approximately 125,000 square-foot lease at Corporate Center, a 1,224,000 ... submarket of Tampa, FL. ... for their new location in Tampa ," ... of Cousins Properties. "Amgen is a cutting-edge global company at ...
(Date:3/27/2017)... 2017 Infectex Ltd., a Russian portfolio company of Maxwell Biotech ... SQ109 added to the standard drug therapy regimen in patients with multidrug-resistant pulmonary tuberculosis ... ( USA ) and the US National Institutes of Health. ... ... Fund Logo ...
Breaking Biology Technology: