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公开(公告)号：AT71923T
公开(公告)日：1992-02-15
申请号：AT87310395
申请日：1987-11-25
Applicant: CORNING GLASS WORKS
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.
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公开(公告)号：AU572357B2
公开(公告)日：1988-05-05
申请号：AU4923085
申请日：1985-10-31
Applicant: CORNING GLASS WORKS
Inventor： CHYUNG KENNETH , GADKAREE KISHOR PURUSHOTTAM , TAYLOR MARK PETER
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公开(公告)号：CA1229033A
公开(公告)日：1987-11-10
申请号：CA481450
申请日：1985-05-14
Applicant: CORNING GLASS WORKS
Inventor： CHYUNG KENNETH , SCHULTZ PETER C , TAYLOR MARK P
IPC: C03C8/16 , B32B5/12 , B32B18/00 , C03C10/00 , C03C10/04 , C03C14/00 , C04B35/80 , G02B5/08 , G02B1/10 , B32B17/04 , C03C3/085
Abstract: This invention relates to the production of mirror blanks comprising a low expansion graphite or SiC fiber reinforced glass-ceramic composite substrate with a surface facing of a glass or glass-ceramic bonded thereto having an expansion closely matching that of the composite.
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公开(公告)号：BR8505631A
公开(公告)日：1986-12-16
申请号：BR8505631
申请日：1985-11-08
Applicant: CORNING GLASS WORKS
Inventor： CHYUNG KENNETH , GADKAREE KISHOR PURUSHOTTAM , TAYLOR MARK PETER
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公开(公告)号：AU4923085A
公开(公告)日：1986-10-23
申请号：AU4923085
申请日：1985-10-31
Applicant: CORNING GLASS WORKS
Inventor： CHYUNG KENNETH , GADKAREE KISHOR PURUSHOTTAM , TAYLOR MARK PETER
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Patent Agency Ranking
公开(公告)号：DE3571125D1
公开(公告)日：1989-07-27
申请号：DE3571125
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
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.
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公开(公告)号：CA1250322A
公开(公告)日：1989-02-21
申请号：CA507931
申请日：1986-04-30
Applicant: CORNING GLASS WORKS
Inventor： CHYUNG KENNETH , FENN PHILIP M , TAYLOR MARK P
Abstract: This invention relates to the production of transparent glass-ceramic bodies exhibiting properties especially suitable for use in ring laser gyros. The inventive products contain B-quartz solid solution as essentially the sole crystal phase and consist essentially, expressed in terms of weight percent on the oxide basis, of SiO2 64-67 ZnO 0.7-4.2 Al2O3 21-24 TiO2 2.0-3.25 Li2O 2.6-3.7 ZrO2 1.25-2.5 MgO 0.8-1.5 TiO2+ZrO2 4-5.25
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公开(公告)号：CA1183555A
公开(公告)日：1985-03-05
申请号：CA414246
申请日：1982-10-27
Applicant: CORNING GLASS WORKS
Inventor： CHYUNG KENNETH
Abstract: The instant invention is concerned with the preparation of glass-ceramic coatings capable of being fired repeatedly to temperatures in excess of 950.degree.C without thermal deformation and being particularly suitable for application to low carbon and titanium-stabilized stainless steels. The coatings are substantially free from alkali metal oxides and consist essentially, expressed in terms of weight percent on the oxide basis, of: BaO 10-60 B2O3 5-30 SiO2 25-40 Al2O3 0-15 CaO 0-15 MgO 10-35 ZnO 0-16 Al2O3 + CaC + ZnO 5-20
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公开(公告)号：CA1182480A
公开(公告)日：1985-02-12
申请号：CA414256
申请日：1982-10-27
Applicant: CORNING GLASS WORKS
Inventor： ANDRUS RONALD L , CHYUNG KENNETH , READE RICHARD FRANCIS
Abstract: The present invention is directed to the production of glass-ceramic coatings capable or being fired repeatedly to temperatures in excess of 950.degree.C without thermal deformation and being especially suitable for application to titaniumstabilized stainless steels. The coatings are highly crystalline, substantially free from alkali metal oxides, and consist essentially, by weight, of: MgO -35 CaO 0-35 ZnO 0-25 CaO + ZnO 10-35 Al2O3 0-10 B2O3 0-25 P2O5 0-10 B2O3 + P2O5 4-25 SiO2 25-50
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公开(公告)号：DE2833082A1
公开(公告)日：1979-02-22
申请号：DE2833082
申请日：1978-07-28
Applicant: CORNING GLASS WORKS
Inventor： BEALL GEORGE HALSEY , CHYUNG KENNETH , HODA SYED NURUL
Abstract: The instant invention is related to the production of glass-ceramic articles which exhibit a hydrophobic character and an inherent tactile quality of being slippery or oily to the touch. Such articles are dervived from compositions within the MgO-Al2O3-SiO2-F quaternary and contain the humite mineral norbergite (Mg2SiO4. MgF2) as a major crystal phase. The intrinsic hydrophobic character and lubricity of the inventive compositions recommend their utility in such applications as (1) high temperature bearing or other low friction mechanical devices, an (2) non-sticking and easily-cleaned culinary ware.
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