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30 条记录 (耗时 0.026 秒)

    Fast strengthening glass lenses
    7.
    发明授权
    Fast strengthening glass lenses 失效
    快速加强玻璃镜片

    公开(公告)号：US5268335A

    公开(公告)日：1993-12-07

    申请号：US982562

    申请日：1992-11-27

    申请人： David J. Kerko ,  Josef C. Lapp ,  David W. Morgan

    发明人： David J. Kerko ,  Josef C. Lapp ,  David W. Morgan

    IPC分类号： C03C3/091 ,  C03C4/08

    CPC分类号： C03C3/091 ,  C03C4/085 ,  Y10S501/905

    摘要： This invention is directed to the production of transparent glasses which can be chemically strengthened within a period of time not exceeding four hours to develop a surface compression layer having a sufficient depth to survive the Drop Ball Test after abrasion, the glasses consisting essentially, in weight percent, of______________________________________ SiO.sub.2 55-65 CaO 0-1.5 B.sub.2 O.sub.3 5-20 MgO 0-4 Al.sub.2 O.sub.3 4-10 TiO.sub.2 0-4 B.sub.2 O.sub.3 + Al.sub.2 O.sub.3 14-26 ZrO.sub.2 0-7 Li.sub.2 O 0-3 MgO + TiO.sub.2 + ZrO.sub.2 0-10 Na.sub.2 O 6-18 As.sub.2 O.sub.3 0-0.5 K.sub.2 O 2-10 ZnO 0-1.5 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 13-22. ______________________________________ Where desired, 3.5-5.5% Fe.sub.2 O.sub.3 may be included to yield glasses which, at a thickness of 2 mm, will not transmit more than 1% of ultraviolet radiation at a wavelength of 380 nm. Where an ultraviolet absorbing glass exhibiting a neutral gray, fixed tint is desired, 0.02-0.035% Co.sub.3 O.sub.4 and 0.08-0.2% NiO will be added.

    Method for making transparent glass-ceramics with high temperature dimensional stability
    9.
    发明授权
    Method for making transparent glass-ceramics with high temperature dimensional stability 失效
    制造具有高温尺寸稳定性的透明玻璃陶瓷的方法

    公开(公告)号：US06197429B1

    公开(公告)日：2001-03-06

    申请号：US09030866

    申请日：1998-02-26

    申请人： Josef C. Lapp ,  Chad B. Moore ,  Linda R. Pinckney

    发明人： Josef C. Lapp ,  Chad B. Moore ,  Linda R. Pinckney

    IPC分类号： B32B900

    CPC分类号： C03C17/22 ,  C03C10/0036 ,  C03C2217/282

    摘要： A glass-ceramic material which exhibits extremely low (e.g. less than 100 ppm) shrinkage, when exposed to 900° C. for 6 hours, and methods for making such glass-ceramics. The glass-ceramic is cerammed at a sufficiently high temperature and then cooling in a controlled manner, preferably to below the strain point of the resultant material. Using this technique, glass-ceramic materials were fabricated which exhibited dimensional shrinkage comparable to and in some cases even less than that achieved by fused silica substrates, when exposed to high temperature poly-Si processing temperatures (e.g. 900° C. for 6 hours).

    摘要翻译： 当暴露于900℃6小时时，显示极低（例如小于100ppm）的玻璃陶瓷材料以及制造这种玻璃陶瓷的方法。 玻璃陶瓷在足够高的温度下被陶瓷化，然后以受控的方式冷却，优选低于所得材料的应变点。 使用这种技术，当暴露于高温多晶硅加工温度（例如900℃，6小时）时，制造了玻璃陶瓷材料，其显示尺寸收缩率相当于并且在一些情况下甚至小于由熔融石英基板实现的尺寸收缩， 。

    Alkali bismuth gallate glasses
    10.
    发明授权
    Alkali bismuth gallate glasses 失效
    枸橼酸铋玻璃

    公开(公告)号：US5114884A

    公开(公告)日：1992-05-19

    申请号：US691843

    申请日：1991-04-26

    申请人： Josef C. Lapp ,  Mark L. Powley

    发明人： Josef C. Lapp ,  Mark L. Powley

    IPC分类号： C03C3/12 ,  C03C3/23 ,  C03C4/10

    CPC分类号： C03C3/23 ,  C03C3/122 ,  Y10S501/904

    摘要： This invention relates to the preparation of thermally stable, chemically durable, heavy metal oxide glasses exhibiting good transmission of infrared radiation to wavelengths of about 7 microns consisting essentially, in weight percent, of 7.5-25% Ga.sub.2 O.sub.3, 70-92% Bi.sub.2 O.sub.3, and 0.25-12% R.sub.2 O, wherein R.sub.2 O consists of at least one alkali metal oxide selected from the group consisting of Na.sub.2 O and K.sub.2 O.