Title:
PRODUCTION OF ALUMINUM NITRIDE WHISKER
Document Type and Number:
Japanese Patent JPH0497998
Kind Code:
A
Abstract:
PURPOSE:To selectively produce only an AlN whisker and to control its yield by interposing gaseous NH3 in a reaction zone in the case of heating and vaporizing aluminum and producing AlN in a vapor-phase reaction. CONSTITUTION:In the case of heating and vaporizing aluminum in gaseous N2 and depositing AlN whisker by a vapor phase reaction, NH3-contg. gas is supplied to this reaction zone. A system is preferably utilized wherein NH3- contg. gas is discharged through small holes 3a perforated to the peripheral surface of a feed pipe 3 for gas introduced into the reaction zone (a reactor, a heater, A$1 powder and the AlN whisker are shown in 1, 2, 4, 5, respectively). The gaseous mixture of NH3 and N2 is preferably utilized wherein the NH3 concn. is regulated to about 0.1-50vol.% from a point of safety.
Inventors:
FUKUI KOICHIRO
HOTTA NORIYASU
HOTTA NORIYASU
Application Number:
JP21346890A
Publication Date:
March 30, 1992
Filing Date:
August 09, 1990
Export Citation:
Assignee:
SHOWA ALUMINUM CORP
International Classes:
C30B29/62; (IPC1-7): C30B29/62
Attorney, Agent or Firm:
Hisayoshi Shimizu
Next Patent: JPH0497999