公开(公告)号：CA2378908C

公开(公告)日：2007-12-18

申请号：CA2378908

申请日：2000-07-17

Applicant: ROLLS ROYCE CORP

Inventor： CREECH GEORGE E ,  NAIK SUBHASH K ,  KORINKO PAUL S

IPC: C23C10/58 ,  F01D5/28 ,  B22D19/00 ,  B22D19/08 ,  B22D19/16 ,  B22F7/04 ,  C22C5/04 ,  C22C21/00 ,  C23C10/52 ,  C23C24/10 ,  C23C26/00 ,  C23C26/02 ,  F02C7/00

Abstract: A one-step method of forming diffused noble metal-aluminide coatings with or without minor incorporations of Si, Cr, Mn, Hf, La, and Y, is disclosed. With the inventive method, two or more powdered metals or metal alloys are applied an d diffused into the metal substrate together, using a sequential multi-stage heating process. This method contrasts with the prior art technology where metals were applied and diffused into the substrate separately. Figure 8 is a schematic view (partly broken away and in section) of a typical turbine blade carrying a coating of the subject diffus ed platimum--aluminide coating. Turbine blade (10) includes a nickel- or cobalt-alloy body portion (12) provided with a diffused aluminide coating (14). It is usually undesirable t o provide the subject coating over the fastening portion (16) of the blade (10).

公开(公告)号：DE69838341D1

公开(公告)日：2007-10-11

申请号：DE69838341

申请日：1998-09-23

Applicant: ROLLS ROYCE CORP

Inventor： CREECH GEORGE EDWARD ,  KORINKO PAUL STEPHEN ,  BARBER MICHAEL JOE ,  NAIK SUBHASH K

IPC: C25D13/02 ,  C23C10/58

Abstract: A method of controlling the final coating thickness of a diffused aluminide coating on a metal substrate. The method includes: (a) depositing an alumina-doped platinum-silicon powder onto a metal substrate, (b) heating the coated substrate to diffuse the platinum-silicon powder into the substrate and removing the undiffused scale, (c) depositing an aluminum-bearing powder onto the platinum-silicon-enriched substrate, and (d) heating the coated substrate to diffuse the aluminum-bearing powder into the substrate and removing the undiffused scale. The depositions are preferably done electrophoretically, in which case the Pt-Si deposition bath is doped with alumina or some other inert particulate. Alternatively, slurry deposition may be used. The method may also be used to deposit Pd-Si coatings onto metal substrates.

公开(公告)号：BR0012474A

公开(公告)日：2002-05-21

申请号：BR0012474

申请日：2000-07-17

Applicant: ROLLS ROYCE CORP

Inventor： CREECH GEORGE E ,  NAIK SUBHASH K ,  KORINKO PAUL S

IPC: F01D5/28 ,  B22D19/00 ,  B22D19/08 ,  B22D19/16 ,  B22F7/04 ,  C22C5/04 ,  C22C21/00 ,  C23C10/52 ,  C23C10/58 ,  C23C24/10 ,  C23C26/00 ,  C23C26/02 ,  F02C7/00 ,  B32B15/01 ,  B32B15/02

Abstract: A "one-step" method of forming diffused noble metal-aluminide coatings with or without minor incorporations of Si, Cr, Mn, Hf, La, and Y, is disclosed. With the inventive method, two or more powdered metals or metal alloys are applied and diffused into the metal substrate together, using a sequential multi-stage heating process. This method contrasts with the prior art technology where metals were applied and diffused into the substrate separately.

公开(公告)号：DE60040216D1

公开(公告)日：2008-10-23

申请号：DE60040216

申请日：2000-03-09

Applicant: ROLLS ROYCE CORP

Inventor： NAIK SUBHASH K ,  KLOTZ JAMES M ,  BARBER MICHAEL J

IPC: C10M111/04 ,  C08K3/16 ,  C09D183/04 ,  C10M173/00 ,  C10M173/02

Abstract: Dry film lubricant coatings are provided by using a silicone resin binder, either as an aqueous emulsion or in a solvent-based system, to fix an alkaline earth metal fluoride to a substrate. The compositions used to apply the coatings may also include relatively minor amounts of xylene, ammonium benzoate, a wetting agent, and/or a porosity-inducing agent-although none of those additives remains in the cured coating. Multi-layer dry film lubricant coatings are also disclosed, with the multi-layer coating having a basecoat layer as described above, and a topcoat layer made of a layer-lattice solid such as graphite or molybdenum disulfide, and a silicone resin, aluminum phosphate or an alkali metal silicate binder.

公开(公告)号：DE60036802D1

公开(公告)日：2007-11-29

申请号：DE60036802

申请日：2000-07-17

Applicant: ROLLS ROYCE CORP

Inventor： CREECH GEORGE E ,  NAIK SUBHASH K ,  KORINKO PAUL S

IPC: B32B15/01 ,  F01D5/28 ,  B22D19/00 ,  B22D19/08 ,  B22D19/16 ,  B22F7/04 ,  C22C5/04 ,  C22C21/00 ,  C23C10/30 ,  C23C10/52 ,  C23C10/58 ,  C23C24/10 ,  C23C26/00 ,  C23C26/02 ,  F02C7/00

Abstract: A "one-step" method of forming diffused noble metal-aluminide coatings with or without minor incorporations of Si, Cr, Mn, Hf, La, and Y, is disclosed. With the inventive method, two or more powdered metals or metal alloys are applied and diffused into the metal substrate together, using a sequential multi-stage heating process. This method contrasts with the prior art technology where metals were applied and diffused into the substrate separately.

公开(公告)号：CA2365550C

公开(公告)日：2005-07-05

申请号：CA2365550

申请日：2000-03-09

Applicant: ROLLS ROYCE CORP

Inventor： KLOTZ JAMES M ,  BARBER MICHAEL J ,  NAIK SUBHASH K

IPC: C08K3/16 ,  C09D183/04 ,  C10M111/04 ,  C10M173/00 ,  C10M173/02 ,  C10M125/02 ,  C10M139/00 ,  C10M125/18 ,  C10M125/22 ,  C10M125/24

Abstract: Dry film lubricant coatings are provided by using a silicone resin binder, either as an aqueous emulsion or in a solvent-based system, to fix an alkali ne earth metal fluoride to a substrate. The compositions used to apply the coatings may also include relatively minor amounts of xylene, ammonium benzoate, a wetting agent, and/or a porosity-inducing agent - although none of those additives remains in the cured coating. Multi-layer dry film lubricant coatings are also disclosed, with the multi-layer coating having a basecoat layer as described above, and a topcoat layer made of a layer-lattice solid such as graphite or molybdenum disulfide, and a silicone resin, aluminum phosphate or an alkali metal silicate binder.