To begin, it must be said that while the term "rust" is defined as iron oxide and therefore rusting is something that can only happen to iron and iron alloys, asking whether or not aluminum "rusts" gets to an important question. Really the question is about corrosion but because aluminum is an element and not an alloy of iron, the question is more properly posed as "Does aluminum corrode?" Let's find out.
Liberty Intercept Blog
Posted by Greg Spitz on Sep 16, 2015 8:24:00 AM
Chlorine is one of the most common elements found on Earth's crust. The name comes from the Greek word for light green, which is how the gas appears in elemental form. It has 17 protons and two stable isotopes giving it a standard atomic weight of 35.45, which makes chlorine the second lightest halogen. It also has the highest electron affinity of any element making it a very strong oxidizer. This means that chlorine will readily steal electrons from other elements. In fact the vast majority of chlorine found on Earth is in the form of the chloride anion (a chlorine atom which has already stolen an extra electron), which will form ionic compounds with many cations (like metals). It is in this form that humans are most familiar with chlorine, as in ionic compound sodium chloride, which we know of as table salt. Chloride ions are important to many chemical and industrial processes including the making of usable chlorine and sodium hydroxide, and desalination and testing of potable water.
We continue our coverage of the Boston Time Capsule with updates from our recent visit to the Museum of Fine Arts, exhibit showing what was discovered inside the second Capsule recovered. The interest in this Time Capsule has been highly documented by many world news organizations because two well-known American patriots, Paul Revere and Sam Adams, were involved. Photos we were allowed to take are shown below.
Posted by Elaine Spitz on Apr 10, 2015 9:12:00 AM
Posted by Elaine Spitz on Feb 23, 2015 2:22:00 PM
Cadmium, a naturally-occurring element, is one of several metallic coating materials which are electrochemically active and, therefore, used as sacrificial coatings to prevent corrosion. Typically they are applied to iron, steel, zinc, aluminum, and titanium alloys, as well.
Cadmium coatings are used on hardware that must be subjected to harsh environments, especially where good corrosion resistance to marine or salt-laden atmospheres is required. Cadmium coatings are often employed in shipbuilding applications because of their high resistance to sea salt, and also in railroad, and ordnance applications. In addition, cadmium coatings have good corrosion fatigue properties as well as resistance to stress corrosion cracking, making them valuable in protecting high strength steel fasteners utilized in the aircraft industry.Read More
Posted by Elaine Spitz on Feb 17, 2015 2:22:00 PM
All metals, rubber, paints, leather, and lesser plastics will corrode, especially in harsh environments, close to the ocean or in polluted climates, which are becoming more commonplace with many relatively-new industrialized nations spewing corrosive gases into the borderless atmosphere.
For the first time in the nearly forty year history of the IEEE Milestones program, the group gave four awards in one day to the same company. That company is of course Bell Labs, currently a subsidiary of Alcatel Lucent. President of Bell Labs Marcus Weldon (center of photo) was there to receive the four awards for communications theory and networks, wireless and satellite communications, digital signal processing and computing, and solid-state and optical devices.
The end of the year is always marked by all sorts of lists and countdowns. I enjoy the symbolism of ending one chapter and beginning of another, and there is no more natural time than now to do this.
As a founding member of the worldwide trade association Intercept Technology Group, Liberty Packaging has a wealth of information to share when it comes to industrial packaging, corrosion, electrostatic discharge, insect inhibition, and shrink wrapping. Our Intercept group includes many talented people from varied industrial backgrounds, all willing to share and contribute to help companies from all across the globe solve problems, increase their product reliability, decrease costs, and hence improve your company's profits or help meet difficult budgets.
My yearly tradition includes reading a physics approach to examining whether Santa Clause could exist and could actually deliver presents to children. This article was published in 1990 by Spy magazine. Since then, it has become the foundation for many chat room arguments about the possibility of Santa, and has been, as I understand it, cross checked and rebutted against by many. Its numerical approach to the circumstances necessary for Santa to do his work is delightful, as is its comically abrupt ending. The physics and analysis are all in good fun and they force adults to think about things differently and put themselves, albeit briefly, back into the shoes of children, to possibly think of magic as an explanation to what they are considering. I know it works on me.