Virginia Tech
    • Log in
    View Item 
    •   VTechWorks Home
    • Virginia Tech Patents
    • Virginia Tech Patents
    • View Item
    •   VTechWorks Home
    • Virginia Tech Patents
    • Virginia Tech Patents
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Sol-gel .beta.-aluminum titanate thin film coating

    Thumbnail
    View/Open
    5407479.pdf (393.1Kb)
    Downloads: 532
    Publication Date
    1995-04-18
    Filing Date
    1993-07-28
    Inventor
    Brown, Nancy R.
    Brown, Jr., Jesse J.
    Sun, Tawei
    Metadata
    Show full item record
    Abstract
    .beta.-Al.sub.2 TiO.sub.5 protective coatings have been developed for both dense and porous ceramics such as SiC and Si.sub.3 N.sub.4 using a chemical solution processing method involving the hydrolysis and condensation of aluminum tri-sec butoxide and titanium butoxide. The solution viscosities, pH values, H.sub.2 O/alkoxide molar ratios, and dip coating withdrawal rates required for crack-free .beta.-Al.sub.2 TiO.sub.5 are 1.0 to 6.2 cP, pH 1-4.5, molar ratio 1.5-10, and withdrawal rate of 2.2-8.0 cm/min, respectively. Conversion of the amorphous coating to crystalline .beta.-Al.sub.2 TiO.sub.5 is achieved by a succession of calcination below 450.degree. C. and a final heat-treatment at 1300.degree. C. for ten hours with controlled heating and cooling rates.
    Assignee
    Center for Innovative Technology
    Virginia Polytechnic Institute and State University
    Patent Number
    5407479
    Application Number
    8098202
    Source URL
    http://pimg-fpiw.uspto.gov/fdd/79/074/054/0.pdf
    Primary/U.S. Class
    106/287.19
    Other/U.S. Class
    501/12
    516/77
    516/90
    516/93
    516/98
    CPC Class
    C01G23/003
    C01P2006/22
    C01P2006/32
    C04B41/87
    C04B35/478
    C04B35/6264
    C04B41/009
    C04B41/5041
    C04B41/4537
    C04B41/4554
    C04B41/463
    C04B41/5016
    C04B35/565
    C04B35/584
    C04B38/00
    C04B2235/3206
    C04B2235/441
    C04B2235/443
    C04B2235/656
    C04B2235/6562
    C04B2111/00112
    C23C18/1216
    C23C18/1254
    C23C18/1283
    C23C18/1295
    Patent Type
    utility
    URI
    http://hdl.handle.net/10919/72832
    Collections
    • Virginia Tech Patents [546]

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us
     

     

    VTechWorks

    AboutPoliciesHelp

    Browse

    All of VTechWorksCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Log inRegister

    Statistics

    View Usage Statistics

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us