METHOD FOR PRODUCING CERAMIC GRADIENT LAYERS ON A METALLIC SUBSTRATE BY MEANS OF AN IN SITU REACTION WITH NON-OXIDISING PRECURSOR IN A SI-C-N (M) SYSTEM

Title:

METHOD FOR PRODUCING CERAMIC GRADIENT LAYERS ON A METALLIC SUBSTRATE BY MEANS OF AN IN SITU REACTION WITH NON-OXIDISING PRECURSOR IN A SI-C-N (M) SYSTEM

Document Type and Number:

WIPO Patent Application WO2004101841

Kind Code:

A3

Abstract:

The invention relates to a method for producing metallic substrates provided with superficial gradient layers and to a metallic substrate provided with a superficial gradient layer which is producible by said method. Titanium or a titanium alloy is preferably used as substrate. The surface gradient layer is obtained by pyrolysis of a polymer precursor coating with a main polymer skeleton containing silicon such as a polysilazane, a polycarbosilazane or similar and metal-containing derivatives thereof. The parameters of molecular weight, degree of branching and ceramic yield in combination with the duration and temperature determine to properties of the layers produced. Said invention also relates to the use of said metallic substrate provided with a superficial gradient layer in the form of an element implantable into a human or animal body.

Inventors:

FELDMANN MARTINA (DE)
MOTZ GUENTER (DE)
ZIEGLER GUENTER (DE)

Application Number:

PCT/EP2004/005209

Publication Date:

April 14, 2005

Filing Date:

May 14, 2004

Export Citation:

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Assignee:

FRIEDRICH BAUR GMBH (DE)
FELDMANN MARTINA (DE)
MOTZ GUENTER (DE)
ZIEGLER GUENTER (DE)

International Classes:

C23C12/02; C23C26/00; (IPC1-7): C23C18/02; C04B35/571; C04B35/589; C07F7/10; C07F7/28; C08G77/62; C23C8/30; C23C16/18; C23C20/00

Domestic Patent References:

WO1996040308A1	1996-12-19
WO2002038520A2	2002-05-16

Foreign References:

DE19847352C2	2001-02-15
DE3926077A1	1991-02-14

Other References:

MOTZ G ET AL: "SIMPLE PROCESSIBILITY OF PRECURSOR-DERIVED SICN COATINGS BY OPTIMISED PRECURSORS", KEY ENGINEERING MATERIALS, AEDERMANNSDORF, CH, vol. 206-213, no. I, 9 September 2001 (2001-09-09), pages 475 - 478, XP008039758
PATENT ABSTRACTS OF JAPAN vol. 0123, no. 12 (C - 523) 24 August 1988 (1988-08-24)

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