Crystallization of a germanium melt in an external electric field

✍ Scribed by Dr. Yu. O. Kanter

• Publisher: John Wiley and Sons
• Year: 1983
• Tongue: English
• Weight: 352 KB
• Volume: 18
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.2170181203

✦ Synopsis

Data are presented on experimental studies of the influence of an external electric field on crystallization of a germanium melt under the layer of a B,O, flux. It has been found out that with the field supercoolings of the melt sharply change. This effect is due to the change of the number of active nucleation centres a t the germanium -B,O, flux interface. The maximum supercoolings of the germanium melt AT-= 190 K were obtained when a negative potential was connected to germanium. The dependences of supercooling on preliminary melt overheating were measured. B pa6o~e IlpMBOnRTClI AaHHbIe no 3KCIIepHMeHTaJlbHOMy HCCJIejTOBaHHIO BJIMXHMH BHemero ~J I ~K T P H Y ~C K O ~O ~O J I R Ha ~p ~c ~a n n a a a q ~m pacnnasa repMaHmrr non cnoeM @ n m a B,O,. 06HaPYWeHHbIfi ~@ @ I ~K T p e a ~o r o H ~M ~H ~H H R nepeoxnawnemiti pacnnaBa nemirr Ha rpamqe paanena repMamfi-@nmc B,O,. MaKCHManbHbIe nepeoxnamgeHm npH IIOAKlIWseHHH nOJIX CBR3bIBaeTCSI C M3MeHeHHeM YHCJIa aKTHBHbIX UeHTpOB 3apOmpacnnasa repMaHHlI AT-= 190 K IIOJIyseHbI npH IIOnKJIIOYeHHH OTpHUaTeJIbHOrO nOTeH-UHaJIa K repMaHHI0. H3MepeHbI 3aBMCllMOCTH nepeOXJIaX~€!HHH OT IlpenBapHTeJIbHOI'O neperpesa pacnnasa.