Archive for the 'Chemical Engineering' Category

The World of Chemical Engineering

CENtral Science

Chemical and Engineering News has a separate website for “News, notes, and musings from C&EN” that takes a more accessible look at what is going in the world of chemical engineering with a dozen different blogs.  These blogs include “Just Another Electron Pusher”, “The Haystack”, and “Artful Science”.   Visitors will find the latest entry in “Artful Science” to be an informative piece on acrylic paint, which was invented in the 1940s.  This particular entry looks at how over time the surfactants in it rise to the surface of a painting and produce a white film.   Currently, art restorers are looking for a way to effectively remove the film while not harming the painting.   The “Friday chemical safety round-up” lists “chemical and safety news from the past week”, including items from categories such as “Fires and explosions” and “Leaks, spills, and other exposures”. [KMG]

Reposted from the October 21, 2011 “Scout Report”.

Metallic Glass Offers High Strength, Toughness

Popular Science (1/11, Boyle) reports, “Materials scientists in California have made a special metallic glass with a strength and toughness” that is reportedly “greater than any known material” and uses “a recipe that could yield a new method for materials fabrication.” The material is “a microalloy made of palladium” and “has a chemical structure that counteracts the inherent brittleness of glass but maintains its strength. It’s not very dense and it is more lightweight than steel, with comparable heft to an aluminum or titanium alloy.” Materials scientist and co-author Robert O. Ritchie of Lawrence Berkeley National Laboratory said, “It has probably the best combination of strength and toughness that has ever been achieved. … It’s not the strongest material ever made, but it’s certainly one of the best with a combination of strength and toughness.”

Reposted from the 1/12/11 ASEE First Bell.

Carbon, Our Energy Future, and You: A Community Workshop

The City of Charlottesville, the County of Albemarle, and the University of Virginia are hosting a Community Workshop inviting the public to learn more about ongoing initiatives related to energy opportunities and impacts, including recent efforts to identify effective energy management strategies.

Cost:                    Free

Date:                   Wednesday, January 26, 2011

Time:                   6:00-8:00 pm

Note:  Display Stations will be available for viewing in the Lobby all day on January 26th

Place:                  Albemarle County Office Building Auditorium and Lobby, 401 McIntyre Road, Charlottesville, VA

Further information:

Event details:  display posters on view in the Lobby with specialists on hand to answer questions/discuss issues; an interactive community survey with real-time responses; comment/suggestion boxes for community input.

Ceramic Printing and Folding

New Ceramic Printing, Folding Process Could Lead To Lightweight Parts.

Technology Review (4/15, Bourzac) reports, “A new way of printing and folding ceramic and metal lattices into miniature structures could lead to novel lightweight engineering structures. The technique involves making latticed sheets from ceramic ink, then folding and heating these sheets to create intricate shapes.” The researchers, from the University of Illinois at Urbana-Champaign and Northwestern University, say the method “fills a need for a way to fabricate complex structures on the centimeter scale–too small for conventional molding or machining, and too big for lithography or similar techniques.” Among the noted potential applications for the process are aerospace, tissue engineering and industrial chemical production.

Reposted from ASEE First Bell, April 15, 2010

More Power To You

Researchers Developing Improved Lithium-Ion Battery Through Use Of Silicon Gel.

Engineering News (12/4, Smrcka) reports, “Researchers at the Institute for Chemistry and Technology of Materials have developed a new method that uses silicon for lithium-ion batteries. The storage capacity is ten times higher than the graphite substrate that has been used until now, and promises considerable improvements for users.” To make it, “researchers use a silicon-containing gel and apply it to the graphite substrate material.” And “as silicon has a lithium-ion storage capacity some ten times higher than the hitherto commercially used graphite, the new material can store more than double the quantity of lithium ions without changes to the battery’s life.”

Reposted from ASEE First Bell for 12/4/09

Just in Time for Halloween…

ChemBot Unveiled

CNET News (10/15, Katz) reports on the “shape-shifting ChemBot” that “looks like the love child of a beating heart and a wad of Silly Putty.”  It is the product of a contract awarded by the Defense Advanced Research Projects Agency and the U.S. Army Research Office to iRobot.  The maker “along with University of Chicago researchers, showed off the oozy results at the Iros conference (the IEEE/RSJ International Conference on Intelligent Robots and Systems) in St. Louis this week.  DARPA envisions the palm-size ChemBot as a mobile robot that can traverse soft terrain and navigate through small openings, such as tiny wall cracks, during reconnaissance and search-and-rescue missions.”  The robot “inflates and deflates parts of its body, changing size and shape — and scaring the living daylights out of us.  We don’t know exactly when ChemBot will join the Armed Forces, but we can only beg:  please, oh please, keep it away from us.”

Reposted from the October 15, 2009 ASEE First Bell briefing.

Database of the Week: ACS Publications

The Publications Division of the American Chemical Society provides the worldwide scientific community with a comprehensive collection of the most cited peer-reviewed journals in the chemical and related sciences.  In addition to 34 research journals, the society also publishes the premier weekly newsmagazine of the chemical enterprise, Chemical & Engineering News.  With the ACS Journal Archives, ACS Publications provides searchable access to over 130 years of original research in chemistry, including more than 750,000 articles dating back to the inaugural volume of the Journal of the American Chemical Society in 1879.

The peer-reviewed journals of ACS publish cutting-edge articles across a broad spectrum of scientific disciplines—agricultural science, biotechnology, analytical chemistry, applied chemistry, biochemistry and molecular biology, chemical biology, chemical engineering, computer science, crystallography, energy and fuels, food science, environmental science, inorganic and nuclear chemistry, material science, medicinal chemistry, organic chemistry, pharmacology, physical chemistry, plant sciences, polymer science, and toxicology.

You can learn more about this database from its About Us page or begin searching the database at ACS Publications.

The ACS Publications Database is one of many information resources brought to you by the Brown Science and Engineering Library!  Ask for a demonstration of this database or about other resources that can help you work faster, smarter and better!

(Use of this database from this address restricted to University of Virginia users only.  Please contact a librarian for assistance, if you are having trouble connecting.)

Lighter than Air

The Knovel Library contains hundreds of full-text online resources in a wide variety of science and engineering disciplines, as well as innovative research and analysis tools for using them. Here is one of the latest items to appear in the Knovel Library:

Alternative Fuels – The Future of Hydrogen (2nd Edition)
Publisher: Fairmont Press, Inc
Subject Area: Sustainable Energy and Development

Description: The Second Edition of this pioneering work addresses emerging factors affecting energy production and use, including the availability and desirability of various fuels.  The text provides extensive discussion on hydrogen sources, both solar and nuclear, and fuel cell technology, as well as on other alternative fuels such as biomass, and wind power.   The book delves into cost analysis, regulatory issues, barriers to implementation, conversion and storage systems, thermodynamic efficiency, fuel chain efficiency, air emission issues, and safety.  The book also covers natural gas, hydrogen gas, methanol, ethanol, and steam reforming.

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July 2020