MATERIALS:Solvay Advanced Polymers‘ broad portfolio of KetaSpire® polyetheretherketone (PEEK) and AvaSpire® modified PEEK resins now includes five wear-resistant grades. These formulations provide an effective all-plastic alternative to more complex metal-based designs with rolling components for high-temperature friction and wear applications in lubricated and non-lubricated environments. The offering includes two KetaSpire PEEK products and three AvaSpire modified PEEK materials designed for high-performance injection molded applications, including seal rings, thrust washers, brake components, gears, and needle bearing replacements for the automotive, industrial, and heavy-duty equipment industries.KetaSpire PEEK is one of the industry’s most chemically resistant plastics, offering excellent strength, superior fatigue resistance, and a heat deflection temperature up to 315C (599F). In this product family, KT-820 SL30 is a graphite/carbon fiber/PTFE-filled grade for non-lubricated and lubricated applications. In non-lubricated environments, it features a limiting PV value (contact pressure times velocity) of 75,000 psi x fpm and exceptional ease of processing, according to Brian Stern, senior global automotive market manager for Solvay Advanced Polymers. The line also includes KT-820 SL45, a carbon fiber/PTFE grade for lubricated environments.
The AvaSpire line of proprietary PEEK-based compounds includes AV-755 SL45, a carbon fiber/graphite-filled grade for high load-bearing applications in lubricated environments. Two carbon fiber/graphite/PTFE-filled grades include AV-742 SL30 (high melt flow) and AV-722 SL30 (low melt flow) for both non-lubricated and lubricated environments. An important advantage of all AvaSpire grades is their comparable strength and modulus, and equivalent or better chemical resistance versus comparable PEEK grades at up to a 30 percent cost reduction.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.