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    • 2. 发明授权
    • Glass ceramic seals to inconel
    • 玻璃陶瓷密封件以铬镍铁合金
    • US4414282A
    • 1983-11-08
    • US369965
    • 1982-04-19
    • Howard L. McCollisterScott T. Reed
    • Howard L. McCollisterScott T. Reed
    • C03C10/00C03C27/04B32B15/00
    • C03C10/00C03C27/046
    • A glass ceramic composition prepared by subjecting a glass composition comprising, by weight, 65-80% SiO.sub.2, 8-16%, Li.sub.2 O, 2-8% , Al.sub.2 O.sub.3, 1-8% K.sub.2 O, 1-5% P.sub.2 O.sub.5 and 1.5-7% B.sub.2 O.sub.3, to the following processing steps of heating the glass composition to a temperature sufficient to crystallize lithium metasilicate therein, holding the glass composition at a temperature and for a time period sufficient to dissolve the lithium metasilicate therein thereby creating cristobalite nucleii, cooling the glass composition and maintaining the composition at a temperature and for a time period sufficient to recrystallize lithium metasilicate therein, and thermally treating the glass composition at a temperature and for a time period sufficient to cause growth of cristobalite and further crystallization of lithium metasilicate producing a glass ceramic composition having a specific thermal expansion coefficient and products containing said composition.
    • 一种玻璃陶瓷组合物,其通过将包含65-80%SiO 2,8-16%,Li 2 O,2-8%,Al 2 O 3,1-8%K 2 O,1-5%P 2 O 5和1.5-7重量%的玻璃组合物 %B 2 O 3,以下加工步骤将玻璃组合物加热至足以使硅酸锂结晶的温度,将玻璃组合物保持在足以溶解偏硅酸锂的温度和时间期间,从而产生方英石核,冷却玻璃 组成并将组合物保持在足以使偏硅酸锂重结晶的温度和时间内,并且在足以引起方英石生长的温度和时间段下热处理玻璃组合物,并进一步结晶生产玻璃陶瓷的偏硅酸锂 具有特定热膨胀系数的组合物和含有所述组合物的产品。
    • 3. 发明授权
    • Method of processing
    • 加工“BPS”玻璃陶瓷和密封件的方法
    • US5820989A
    • 1998-10-13
    • US706852
    • 1996-09-03
    • Scott T. ReedRonald G. StoneHoward L. McCollisterPaul R. Wengert, deceased
    • Scott T. ReedRonald G. StoneHoward L. McCollisterPaul R. Wengert, deceased
    • C03C10/00C03C27/04B32B17/06
    • C03C27/044C03C10/0027C03C10/0054Y10T428/131Y10T428/1352Y10T428/139
    • A glass ceramic composition, a glass ceramic-to-metal seal, and more specifically a hermetic glass ceramic-to-metal seal prepared by subjecting a glass composition comprising, by weight percent, SiO.sub.2 (65-80%), LiO.sub.2 (8-16%), Al.sub.2 O.sub.3 (2-8%), K.sub.2 O (1-8%), P.sub.2 O.sub.5 (1-5%), B.sub.2 O.sub.3 (0.5-7%), and ZnO (0-5%) to the following processing steps: 1) heating the glass composition in a belt furnace to a temperature sufficient to melt the glass and crystallize lithium phosphate, 2) holding at a temperature and for a time sufficient to create cristobalite nuclei, 3) cooling at a controlled rate and to a temperature to cause crystallization of lithium silicates and growth of cristobalite, and 4) still further cooling in stages to ambient temperature. This process produces a glass ceramic whose high coefficient of thermal expansion (up to 200.times.10.sup.-7 in/in/.degree.C.) permits the fabrication of glass ceramic-to-metal seals, and particularly hermetic glass ceramic seals to nickel-based and stainless steel alloys and copper.
    • 玻璃陶瓷组合物,玻璃陶瓷 - 金属密封件,更具体地,是通过将包含以重量百分比计SiO 2(65-80%),LiO 2(8- 16%),Al 2 O 3(2-8%),K 2 O(1-8%),P 2 O 5(1-5%),B 2 O 3(0.5-7%)和ZnO(0-5% 1)将带式炉中的玻璃组合物加热到足以熔化玻璃并使磷酸锂结晶的温度,2)在足以产生方英石核的温度和时间内保持3)以受控的速度和温度 引起硅酸锂的结晶和方英石的生长,以及4)逐步进一步冷却至环境温度。 该方法生产玻璃陶瓷,其高热膨胀系数(高达200×10 -7 in / in /℃)允许制造玻璃陶瓷 - 金属密封件,特别是密封的玻璃陶瓷密封件,以镍基和不锈钢 钢合金和铜。
    • 4. 发明授权
    • Sealing glasses for titanium and titanium alloys
    • 钛和钛合金密封眼镜
    • US5648302A
    • 1997-07-15
    • US713294
    • 1996-09-13
    • Richard K. BrowHoward L. McCollisterCarol C. PhiferDelbert E. Day
    • Richard K. BrowHoward L. McCollisterCarol C. PhiferDelbert E. Day
    • C03C3/068C03C3/15C03C8/24
    • C03C3/068A61N1/3754C03C3/15C03C8/24
    • Barium lanthanoborate sealing-glass compositions are provided comprising various combinations (in terms of mole-%) of boron oxide (B.sub.2 O.sub.3), barium oxide (BaO), lanthanum oxide (La.sub.2 O.sub.3), and at least one other oxide selected from the group consisting of aluminum oxide (Al.sub.2 O.sub.3), calcium oxide (CaO), lithium oxide (Li.sub.2 O), sodium oxide (Na.sub.2 O), silicon dioxide (SiO.sub.2), or titanium dioxide (TiO.sub.2). These sealing-glass compositions are useful for forming hermetic glass-to-metal seals with titanium and titanium alloys having an improved aqueous durability and favorable sealing characteristics. Examples of the sealing-glass compositions are provided having coefficients of thermal expansion about that of titanium or titanium alloys, and with sealing temperatures less than about 900.degree. C., and generally about 700.degree.-800.degree. C. The barium lanthanoborate sealing-glass compositions are useful for components and devices requiring prolonged exposure to moisture or water, and for implanted biomedical devices (e.g. batteries, pacemakers, defibrillators, pumps).
    • 提供了硼酸钡硼酸盐密封玻璃组合物,其包括氧化硼(B 2 O 3),氧化钡(BaO),氧化镧(La 2 O 3)和选自以下的至少一种其它氧化物的各种组合(以摩尔%计): 氧化铝(Al 2 O 3),氧化钙(CaO),氧化锂(Li 2 O),氧化钠(Na 2 O),二氧化硅(SiO 2)或二氧化钛(TiO 2)。 这些密封玻璃组合物可用于形成具有改善的水性耐久性和良好密封特性的钛和钛合金的密封玻璃 - 金属密封。 提供了密封玻璃组合物的实例,其热膨胀系数约为钛或钛合金的热膨胀系数,密封温度低于约900℃,通常约为700-800℃。钡硼酸钡密封玻璃 组合物可用于需要长时间暴露于水分或水分的部件和装置,以及植入的生物医学装置(如电池,起搏器,除颤器,泵)。