Title:
【発明の名称】複合材料コーテイング及びその製法
Document Type and Number:
Japanese Patent JP2002526654
Kind Code:
A
Abstract:
The invention relates to a composite material comprised of a coated hard metal or cermet base and to a method for the production thereof. The single layer or multilayer coating on the base contains at least one layer with a thickness ranging from 0.5 mum to 25 mum, at least one Al2O3 phase, and at least one phase comprised of ZrO2 and/or HfO2. According to the invention, a third finely dispersive phase comprised of an oxide, oxicarbide, oxinitride or oxicarbonitride of titanium should be included in this Al2O3/ZrO2 layer and/or HfO2 layer. To this end, a CVD process is used at depositing temperatures ranging from 900 ° C. to 1000 ° C. in the gas phase under pressures ran from 10 to 100000 Pa, whereby the gas phase, in addition to the gases essential for deposition, contains 0.2 to 5 mol % TiCl4.
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Inventors:
Hartmut Westphal
Volkmar Zotke
Volkmar Zotke
Application Number:
JP2000574311A
Publication Date:
August 20, 2002
Filing Date:
September 04, 1999
Export Citation:
Assignee:
Vidia Gezel Shaft Mitt Beschlenktel Haftung
International Classes:
C23C16/30; C23C16/40; B23B27/14; C23C30/00; (IPC1-7): C23C30/00; B23B27/14
Attorney, Agent or Firm:
Toshio Yano (4 outside)