Air and Bubbles - Potential Problems with Hydraulic Lubrication
The article provides information on the problems that occur in a hydraulic system due to aeration and cavitation. It also outlines how costly repairs can be avoided.
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Biomaterials and Controlling Them with Radio Waves
Researchers can now control DNA biomolecules with radio waves. The ultimate goal of this work will be to use biological machines to perform tasks on a molecular scale.
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Ceramics in The Electronics Industry - Semiconductors, Sensors and Superconductors – The American Ce
The use of ceramics in electronics is becoming increasingly popular. Applications of ceramics in the electronics industry include sensors, actuators, electro-optic materials, semiconductors and multilayer capacitors.
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Copper / Aluminium / Nickel Shape Memory Alloys
CuAlNi alloys are the second most popular family of SMA's. They have transformation in the range 80-200°C and are much cheaper to produce than NiTi alloys. Advantages, compositions, manufacture and thermal stability are all covered.
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Copper / Zinc / Aluminium Shape Memory Alloys
CuZnAl SMA's are probably the least well known of the three main families of commercial SMA's. They use relatively cheap materials and can have transformation temperatures between + and -100°C. They have been used for fluid couplings, actuators and safety valves.
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Direct Writing - Designing in Functionality Using Direct Writing and Rapid Manufacturing Techniques
The concept of designing in functionality using direct writing and rapid manufacturing techniques is discussed. Properties such as stiffness, surface toughness, thermal properties, electrical properties and chamical and biological behaviour are addressed.
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Elastic Electret Film
Elastic electret films of electromechanical film (EMFi) have the ability to sense the slightest touch, change their thickness accordingly to an external voltage and produce sound in the process. Applications include speakers, keyboards, microphones, musical instruments and sensors.
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Electric Actuators for Versatile and Precise Control of Components Testing - Zwick GmbH
Zwick Roell have developed a electric actuator that can be integrated into mechanicxal testing apparatus. Its implimentation ensures smooth operation with smooth and precise control.
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Ferroelectric Materials – Properties and Applications of Ferroelectric Materials
The properties that charcterise ferroelectric materials are discussed along with the discovery of ferroelectricity and applications of ferroelectric materials. Some ferroelectric materials are also listed.
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High Performance Piezoceramic Materials - Supplier Data By CeramTec
Piezoceramic devices are subjected to high loads yet expected to perform with strong reliability. CeramTec has addressed this need by developing a range of special high-performance materials suitable for piezoelectric engineering.
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