TECHNIQUES FOR THE PREPARATION OF BORON FIBERS

The techniques for the preparation of boron fibres have been reviewed. The review contains a brief description of the following techniques: direct spinning, thermal decomposition of boranes, hydrogen reduction of boron halides and utilization of electrical discharges. In connection with the description of the dominating halide process various substrates are discussed, together with methods for increasing the deposition rate and methods for improving the tensile strength of the fibres after production. Finally, the tensile strengths of boron fibres produced by different techniques are compared. © 1979 Chapman and Hall Ltd.