|
A superconducting tape ... mass produced? (new tape carries 1 million amperes of electric current per square centimeter; new methods for producing high-temperature superconducting wire in mass quantities)(Brief Article)
From:
Science News
| Date:
April 29, 1995| Author:
Lipkin, Richard
| COPYRIGHT 1995 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.Copyright information
|
A flexible superconducting tape that carries more than 1 million amperes of electric current per square centimeter of material has proven itself in the laboratory, scientists report. Stephen R. Foltyn, a materials scientist at the Los Alamos (N.M.) National Laboratory, and his colleagues describe making bendable strips that superconduct at 75 kelvins, the temperature of liquid nitrogen.
For a superconductor to carry so much electricity in such a small area -- a density of c...
Related newspaper, magazine, and journal articles from HighBeam Research
|
Nature's tiny helping hands.
U.S. News & World Report
; Angela Belcher has some tiny, talented assistants. Belcher, a materials scientist at the Massachusetts Institute of Technology, wanted to fashion semiconductor materials into circuits less than a hundredth the size of devices on a standard microchip, and she had a wild idea. Why not draw on the
|
|
Polymers grafted by interlocking strands. (new method for grafting polymers discovered) (Brief Article)
Science News
; They run along the edges of outdoor gear, the tops of sneakers, the borders of bags. These fasteners -- Velcro being the best-known brand -- have two strips: one bristly and one fuzzy. Pressed together, they stick, as tiny hooks on the rough side grasp the soft side's looping threads. Designed
|
|
Heart of the matter: scanning scope digs deeper into microchips.(This Week)
Science News
; Princesses may feel peas under huge stacks of mattresses, but semiconductor manufacturers have a much harder time detecting minuscule defects within the crystalline layers of their microchips. So, they have difficulty determining when something goes wrong in the manufacturing process. Now,
|
|
Device goes for the glow. (alternating layers of silicon and silicon dioxide converts electron energy into light)(Science News of the Week)(Brief Article)
Science News
; Silicon, already the staple material of computers and electronics, would become even more useful if it could be made to glow. But its crystalline wafers, though friendly to electrons, turn a cold shoulder to photons, emitting light only weakly. Zheng H. Lu, a materials scientist at the National
|
|
BMI hires materials scientist
Electromagnetic News Report
; Boldt Metronics International of Palatine, Illinois, has appointed Jerry English materials scientist for the company's business unit. English is responsible for developing new processes and identifying new materials to aid manufacturing and design efforts. He reports to Michael Rosenstock, director
|