Accession Number:

AD0260074

Title:

Floating Zone Refining of Boron Using Electron Beam Melting,

Descriptive Note:

Corporate Author:

OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s):

Report Date:

1961-05-01

Pagination or Media Count:

1.0

Abstract:

Boron rods, prepared by the reduction of boron trichloride with hydrogen, were refined by the floating zone process. The melting was accomplished by electron bombardment, using a 3000-v, 0.2 ampere beam. The band gap for a zone refined sample after three passes was 1.30 ev as determined from resistivity measurements. It was observed that carbon is an electrically active impurity, and that nickel and tungsten are not. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE