A bright future is seen for advanced ceramic fibers and fiber coatings for high-temperature ceramic matrix composites (CMCs). But first design engineers must have better access to the information they need to select the new materials. So concludes a panel of the Commission on Engineering and Technical Systems of the National Research Council. Classified projects have generated most data on the tough, stable CMCs. Much of the information probably can be made public now, the report says. It urges creation of a database of CMC properties. Still, technical shortcomings must be overcome before CMCs can be widely used in thermostructural applications. The panel notes that fiber coatings for non-oxide composites have demonstrated adequate performance in short-life applications, such as rocket nozzles. However, fiber-coating technologies for long-life applications, such as turbine engine components, have yet to be demonstrated in component testing. Advances have been further impeded by the high cost of coated fiber. The panel thinks costs will drop through mass production as designers employ CMCs in a larger number of applications.
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
These are the toys that inspired budding engineers to try out sublime designs, create miniature structures, and experiment with bizarre contraptions using sets that could be torn down and reconstructed over and over.
PowerStream is deploying the microgrid at its headquarters to demonstrate how people can generate and distribute their own energy and make their homes and businesses more sustainable through renewables.
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.