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    5.
    发明专利
    未知

    公开(公告)号：AT542785T

    公开(公告)日：2012-02-15

    申请号：AT05254950

    申请日：2005-08-09

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BHATIA TANIA ,  HOLOWCZAK JOHN E ,  BALDWIN NEIL

    IPC: C04B41/90 ,  C25D13/02 ,  F01D5/28

    Abstract: The present invention relates to a process for the deposition of protective coatings on complex shaped Si-based substrates which are used in articles and structures subjected to high temperature, aqueous environments comprises a non-line-of-sight process, particularly, electrophoretic deposition (EPD) process. The deposition process comprises steps of: providing a complex shaped Si-containing substrate; depositing an electrically conductive layer on the substrate; and depositing at least one barrier layer by electrophoretic deposition (EPD) as a protective coating.

    6.
    发明专利
    未知

    公开(公告)号：DE602004002721T2

    公开(公告)日：2007-08-16

    申请号：DE602004002721

    申请日：2004-05-21

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SUN ELLEN Y ,  LINDSEY GARY D ,  HOLOWCZAK JOHN E ,  BALDWIN NEIL R ,  EATON HARRY E

    IPC: B32B18/00 ,  C04B41/52 ,  C04B41/89 ,  C23C4/10 ,  C23C28/00 ,  C23C28/04 ,  F01D5/28

    Abstract: An article comprises a silicon based substrate, a bond layer and a protective top layer. The top layer is selected from the group consisting of rare earth disilicates, yttrium disilicates, rare earth monosilicates, yttrium monosilicates, silica and mixtures thereof. The protective layer described above is used in combination with a bond layer provided between the protective layer and the silicon based substrate which functions as oxygen getter and includes an oxygen gettering agent. By oxygen gettering agent is meant a refractory metal oxide former which forms an oxide at operational condition of (high temperature and aqueous environment) having a melting point of greater than 1500 DEG C wherein the negative free energy of formation of the refractory metal oxide from the refractory metal is more than 100 Kcal/mole. Suitable oxygen gettering agents include silicon and other refractory metals. An oxygen gettering agent may also be added to the protective layer.

    7.
    发明专利
    未知

    公开(公告)号：DE602004002721D1

    公开(公告)日：2006-11-23

    申请号：DE602004002721

    申请日：2004-05-21

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SUN ELLEN Y ,  LINDSEY GARY D ,  HOLOWCZAK JOHN E ,  BALDWIN NEIL R ,  EATON HARRY E

    IPC: B32B18/00 ,  C04B41/52 ,  C04B41/89 ,  C23C4/10 ,  C23C28/00 ,  C23C28/04 ,  F01D5/28

    Abstract: An article comprises a silicon based substrate, a bond layer and a protective top layer. The top layer is selected from the group consisting of rare earth disilicates, yttrium disilicates, rare earth monosilicates, yttrium monosilicates, silica and mixtures thereof. The protective layer described above is used in combination with a bond layer provided between the protective layer and the silicon based substrate which functions as oxygen getter and includes an oxygen gettering agent. By oxygen gettering agent is meant a refractory metal oxide former which forms an oxide at operational condition of (high temperature and aqueous environment) having a melting point of greater than 1500 DEG C wherein the negative free energy of formation of the refractory metal oxide from the refractory metal is more than 100 Kcal/mole. Suitable oxygen gettering agents include silicon and other refractory metals. An oxygen gettering agent may also be added to the protective layer.

    8.
    发明专利
    未知

    公开(公告)号：AT342245T

    公开(公告)日：2006-11-15

    申请号：AT04252991

    申请日：2004-05-21

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SUN ELLEN Y ,  LINDSEY GARY D ,  HOLOWCZAK JOHN E ,  BALDWIN NEIL R ,  EATON HARRY E

    IPC: B32B18/00 ,  C04B41/52 ,  C04B41/89 ,  C23C4/10 ,  C23C28/00 ,  C23C28/04 ,  F01D5/28

    Abstract: An article comprises a silicon based substrate, a bond layer and a protective top layer. The top layer is selected from the group consisting of rare earth disilicates, yttrium disilicates, rare earth monosilicates, yttrium monosilicates, silica and mixtures thereof. The protective layer described above is used in combination with a bond layer provided between the protective layer and the silicon based substrate which functions as oxygen getter and includes an oxygen gettering agent. By oxygen gettering agent is meant a refractory metal oxide former which forms an oxide at operational condition of (high temperature and aqueous environment) having a melting point of greater than 1500 DEG C wherein the negative free energy of formation of the refractory metal oxide from the refractory metal is more than 100 Kcal/mole. Suitable oxygen gettering agents include silicon and other refractory metals. An oxygen gettering agent may also be added to the protective layer.

    9.
    发明专利
    未知

    公开(公告)号：ES2135588T3

    公开(公告)日：1999-11-01

    申请号：ES94920222

    申请日：1994-06-15

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HOLOWCZAK JOHN E ,  ZABIELSKI MARTIN F

    IPC: C04B38/00 ,  F23D14/02 ,  F23D14/16 ,  F23D14/46

    Abstract: A heating unit (14) includes a flame holder (2) that has a plurality of randomly distributed pores and comprises at least about 50 wt % ceramic particles that have an emissivity of at least about 0.7. The heating unit (14) also has means for conveying a fuel/air mixture to the flame holder (2), means (18) for igniting the fuel/air mixture so it forms a flame in proximity to the flame holder, means (20) for transferring heat from the flame to a heat transfer medium, and means (26) for exhausting combustion products from the heating unit. A fuel/air mixture may be directed through the flame holder (2) and burned to form a flame in proximity to the flame holder such that the flame and flame holder interact to produce emissions of less than about 10 ng/J NOx.

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