中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

30 records (took 0.046 seconds)

    23.
    发明专利
    未知

    公开(公告)号：AT44135T

    公开(公告)日：1989-07-15

    申请号：AT85308034

    申请日：1985-11-05

    Applicant: CORNING GLASS WORKS

    Inventor： CHYUNG KENNETH ,  GADKAREE KISHOR PURUSHOTTAM ,  TAYLOR MARK PETER ,  COOPER REID FRANKLIN ,  STEWART RONALD LEROY

    IPC: C03B32/00 ,  C03B32/02 ,  C03C10/00 ,  C03C10/06 ,  C03C14/00

    Abstract: The present invention is directed to SiC whisker and/or fiber reinforced glass-ceramic matrix composite articles wherein an alkaline earth aluminosilicate constitutes the predominant crystal phase. More particularly, the composite articles will consist essentially of 10-60% by weight SiC whiskers and/or 15-70% by volume ceramic fibers and the glass-ceramic matrix will consist essentially, by weight on the oxide basis, ofThe preferred predominant crystal phase is selected from the group of anorthite and its pseudo-binaries, with mullite, cordierite, barium osumilite, and albite solid solution.

    REINFORCED CALCIUM ALUMINOSILICATE GLASS-CERAMICS
    24.
    发明专利
    REINFORCED CALCIUM ALUMINOSILICATE GLASS-CERAMICS 未知

    公开(公告)号：AU8251587A

    公开(公告)日：1988-06-23

    申请号：AU8251587

    申请日：1987-12-14

    Applicant: CORNING GLASS WORKS

    Inventor： CHYUNG KENNETH ,  GADKAREE KISHOR PURUSHOTTAM ,  STEWART RONALD LEROY ,  TAYLOR MARK PETER

    IPC: C03C3/062 ,  C03C3/097 ,  C03C10/00 ,  C03C10/06 ,  C03C14/00

    Abstract: The present invention is directed to the production of SiC whisker- and/or fiber-reinforced, internally-nucleated glass-ceramic matrix composite articles consisting essentially of 0.5-60% by weight SiC whiskers and/or 15-70% by volume ceramic fibers substantially uniformly distributed in a glass-ceramic matrix consisting essentially, in weight percent on the oxide basis, of 16-20% CaO, 38.5-46% Al2O3, 35-42% SiO2, and up to 10% total of at least one nucleating agent in the indicated proportion selected from the group consisting of 0.1-3% CR2O3, 0.25-3% HfO2, 2-5% MoO3, 0.25-3% Nb2O5, 0.25-3% Ta2O5, 0.25-3% WO3, and 1-10% ZrO2, wherein Al2O3 is present in an amount which is at least 5 mole percent and up to 50 mole percent in excess of that present in stoichiometric triclinic anorthite, and wherein the predominant crystal phases in the glass-ceramic are triclinic anorthite and mullite and/or alpha -Al2O3. Up to 1.5% As2O3 may advantageously be included in the composition.

Patent Agency Ranking