Polycrystalline ferroelectric fiber

摘要: An inorganic, polycrystalline, ferroelectric fiber with a diameter of from about 1 micron to millimeter, porosity less than 40 percent, density at least 60 percent theoretical density, and carbonaceous material content 0 5 percent. The consists essentially grains which substantially 100 are 0.01 5.0 microns in size; the ratio size largest grain smallest is no greater 10.