Word: silicones
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HIGH-GRADE MICA, too costly to mine in the U.S., will soon be made synthetically for the electronics industry. Mycalex Corp. of Clifton, N.J. has found an inexpensive way to make mica of magnesium, aluminum, silicon and fluorine, is ready to swing into large-scale production after successfully operating a pilot plant. Eventually, the process may make the U.S. less dependent on foreign supplies of high-grade mica, 95% of which (about 26 million lbs. annually) is imported from India...
...Bell Solar Battery resembles a miniature xylophone. It is made of wafer-thin strips of specially treated silicon, linked in series. Silicon is a semiconductor, i.e., under certain conditions it can be made to carry electricity...
...silicon in the battery is first grown in pure crystals, cut into strips, then impregnated to a depth of only one ten-thousandth of an inch with minor impurities. The top surface is treated with boron, whose atom has one less electron in its outer shell than silicon has; the bottom layer is treated with arsenic, whose atom has one more electron in its outer shell than silicon has. When light strikes near the junction of the two layers, it pushes electrons to the bottom surface, pulls "holes" (electronless gaps) to the top surface, creating a difference in voltage...
Last week Radio Corp. of America demonstrated a sub-thimble-size radioactive battery that is somewhat more efficient. A film of Strontium 90 is spread on a wafer of silicon. When its beta particles shoot into the silicon, each of them releases 200,000 fresh electrons, which are collected as an electric current by a spot of silicon-antimony alloy...
Hopper Helper. A new freight car for bulk shipments of dry powdered commodities (feed, chemicals), which formerly had to be transported in containers, was put into production by General American Transportation Corp. The car contains bins with slanted sides lined with a porous, silicon-treated fabric. To unload the car, air is blown at low pressure under the fabric, breaking up hard-packed cargo so that it flows like water through hatches under...