Method for making nanocrystalline glass-ceramic fibers
    1.
    发明授权
    Method for making nanocrystalline glass-ceramic fibers 失效
    制造纳米晶玻璃陶瓷纤维的方法

    公开(公告)号:US06698246B1

    公开(公告)日:2004-03-02

    申请号:US09691427

    申请日:2000-10-18

    IPC分类号: C03B37027

    摘要: A method for making a glass ceramic, optoelectronic material such as a clad optical fiber or other component for use in an optoelectronic device. The method comprises preparing a glass composition batch to yield a precursor glass for a nanocrystalline glass-ceramic that is doped with at least one kind of optically active ion, such as a transition metal or lanthanide element; melting the batch; forming a glass cane; surrounding the cane with a chemically inert cladding material shaped in the form of a tube; drawing a glass fiber from the combined precursor-glass “cane-in-tube” at a temperature slightly above the liquidus of the precursor glass composition, and heat treating at least a portion of the drawn clad glass fiber under conditions to develop nanocrystals within the core composition and thereby forming a glass ceramic.

    摘要翻译: 制造玻璃陶瓷的方法,光电子材料如包层光纤或用于光电子器件的其它组件。 该方法包括制备玻璃组合物批料以产生用于掺杂至少一种光学活性离子如过渡金属或镧系元素的纳米晶体玻璃陶瓷的前体玻璃; 熔化批次; 形成一个玻璃手杖; 用管形式形成的化学惰性的包覆材料包围手杖; 在略高于前体玻璃组合物的液相线的温度下从组合的前体玻璃“管内”中拉制玻璃纤维,并且在条件下热处理拉制的包覆玻璃纤维的至少一部分,以在内部玻璃纤维内形成纳米晶体 芯组合物,从而形成玻璃陶瓷。

    Strong miserite glass-ceramics
    3.
    发明授权
    Strong miserite glass-ceramics 有权
    强ite玻璃陶瓷

    公开(公告)号:US6130178A

    公开(公告)日:2000-10-10

    申请号:US286158

    申请日:1999-04-05

    IPC分类号: C03C10/16

    CPC分类号: C03C10/16

    摘要: The present invention is directed at a glass-ceramic having high strength and toughness and containing miserite as a predominant crystal phase. The glass-ceramic has a composition calculated in terms of a weight percent on the oxide basis comprising 40-68% SiO.sub.2, 12-35% CaO, 8-20% CaF.sub.2, 4-10.5% K.sub.2 O, 0-5% Al.sub.2 O.sub.3, 0-5% B.sub.2 O.sub.3, 0-15% P.sub.2 O.sub.5, 0-4% R.sub.2 O.sub.3, wherein R represents Y.sup.3+ and rare earth metals in the lanthanide series, and 0-5% of optional constituents selected from the group consisting of MgO, SrO, BaO, Na.sub.2 O, Nb.sub.2 O.sub.5, ZrO.sub.2, and ZnO, and 0-10% of optional constituents selected from the group consisting of Nb.sub.2 O.sub.5 and TiO.sub.2 and 0-2% Li.sub.2 O as an optional constituent. The glass-ceramic may contain secondary phases of cristobalite (SiO.sub.2), fluorite (CaF.sub.2), xonotlite (Ca.sub.6 Si.sub.6 O.sub.17 F.sub.2), and fluorapatite (Ca.sub.5 (PO.sub.4).sub.3 F), and small amounts of other calcium silicate phases such as wollastonite (CaSiO.sub.3).

    摘要翻译: 本发明涉及具有高强度和韧性的玻璃陶瓷,并且含有苦ite石作为主要结晶相。 玻璃陶瓷具有以氧化物为基准的重量百分比计算的组成,包括40-68%SiO 2,12-35%CaO,8-20%CaF 2,4-10.5%K 2 O,0-5%Al 2 O 3,0 -5%B2O3,0-15%P2O5,0-4%R2O3,其中R代表Y3 +,镧系中的稀土金属和0-5%选自MgO,SrO,BaO, Na 2 O,Nb 2 O 5,ZrO 2和ZnO,以及选自Nb 2 O 5和TiO 2以及0-2%Li 2 O作为任选成分的0-10%的任选成分。 玻璃陶瓷可以含有方英石(SiO 2),萤石(CaF 2),黑云母(Ca 6 Si 6 O 17 F 2)和氟磷灰石(Ca 5(PO 4)3 F))和少量其它硅酸钙相如硅灰石(CaSiO 3)的次相。

    Variably translucent glass-ceramic article and method for making
    4.
    发明授权
    Variably translucent glass-ceramic article and method for making 失效
    可变半透明玻璃陶瓷制品及其制造方法

    公开(公告)号:US5173453A

    公开(公告)日:1992-12-22

    申请号:US773455

    申请日:1991-10-09

    CPC分类号: C03C10/0027 C03C10/0036

    摘要: This invention is directed toward of a glass-ceramic article consisting essentially, expressed in terms of weight percent on the oxide basis, of about 64-70% SiO.sub.2, 18-22% Al.sub.2 O.sub.3, 3.3-4% Li.sub.2 O, 2-5% ZnO, 0-2% MgO, 1.5-3.5% ZrO.sub.2, 0.5-2.5% TiO.sub.2, 3.5-4.5% ZrO.sub.2 +TiO.sub.2, 0.5-1.5% As.sub.2 O.sub.5 and 0-0.5% SnO.sub.2. The glass-ceramic article disclosed herein, is comprised of adjacent areas which exhibit visible transmissions ranging from transparent-to-opaque. The transparent areas are clear, transparent and essentially colorless and contain stuffed .beta.-quartz as essentially the sole crystal phase. On the other hand, the translucent-to-opaque areas contain .beta.-spodumene as the predominant crystal phase with a minor amounts of gahnite crystals resulting from the thermal transformation of said stuffed .beta.-quartz. This gahnite phase is present in an amount sufficient to compensate for the transformation of said stuffed .beta.-quartz to .beta.-spodumene, resulting in a dimensional change, expressed in terms of density change, of essentially zero.

    Method of making forsterite glass-ceramics
    5.
    发明授权
    Method of making forsterite glass-ceramics 失效
    制造镁橄榄石玻璃陶瓷的方法

    公开(公告)号:US06813903B2

    公开(公告)日:2004-11-09

    申请号:US10674855

    申请日:2003-09-30

    IPC分类号: C03C1004

    摘要: A composition for a glass-ceramic material that contains a crystallinity of at least about 30% by weight of forsterite components at a liquidus temperature of about 1525° C. or below. The glass-ceramic has a composition, in weight percent on an oxide basis, consisting essentially of about: 40-60% SiO2; 10-25% Al2O3; 18-30% MgO; 3-10% Na2O; 0-10% K2O; >5-15% TiO2. The invention further comprises a method for achieving high crystalline yield at such a low liquidus with increased solubility of high levels of chromium ions. The glass-ceramics can be used in drawing optical fibers and as gain media in amplifier and laser devices for near infrared wavelengths.

    摘要翻译: 一种用于玻璃 - 陶瓷材料的组合物,其在大约1525℃或更低的液相线温度下含有至少约30重量%的镁橄榄石组分的结晶度。 玻璃陶瓷具有基于氧化物的重量百分比的组成,基本上由约40-60%的SiO 2组成; 10-25%Al2O3; 18-30%MgO; 3-10%Na2O; 0-10%K2O; > 5-15%TiO2。 本发明还包括一种在这种低液相线下实现高结晶产率的方法,其具有高水平铬离子的溶解度增加。 玻璃陶瓷可用于绘制光纤和放大器中的增益介质以及用于近红外波长的激光器件。

    Transition-metal, glass-ceramic gain media
    6.
    发明授权
    Transition-metal, glass-ceramic gain media 有权
    过渡金属,玻璃陶瓷增益介质

    公开(公告)号:US06297179B1

    公开(公告)日:2001-10-02

    申请号:US09686564

    申请日:2000-10-11

    IPC分类号: C03C1004

    摘要: A gain medium for use in optical amplifiers or laser oscillators is disclosed. The gain medium includes a transition-metal doped glass-ceramic material having a crystal phase and a glass phase. The crystal phase is formed in situ in the glass phase, with the transition metal ions preferentially partitioning into the crystals from the glass phase. The crystals so formed have a size of less than 50 nm, and the transition metal ions within them are capable of lasing at a wavelength within the range of about 900 to 3000 nm. Also disclosed are amplifier and laser oscillator configurations, where the glass-ceramic gain medium is applied in a variety of configurations. Also disclosed is a method of amplifying a signal of light wherein the glass-ceramic gain medium is pumped with light energy so as to excite the transition metal ions, and the signal of light is transmitted through the gain medium while the transition metal ions are excited, whereby the signal of light is amplified. Also disclosed is a method of producing laser oscillation wherein the glass-ceramic gain medium is included in a laser cavity, pumped with optical energy to excite the transition metal ions, and the resulting radiation is forced to oscillate by the use of reflecting surfaces for feedback.

    摘要翻译: 公开了一种用于光放大器或激光振荡器的增益介质。 增益介质包括具有晶相和玻璃相的过渡金属掺杂的玻璃 - 陶瓷材料。 晶相在玻璃相中原位形成,过渡金属离子优先从玻璃相分配成晶体。 如此形成的晶体具有小于50nm的尺寸,并且其内的过渡金属离子能够在约900至3000nm的范围内的波长下发光。 还公开了放大器和激光振荡器配置,其中玻璃 - 陶瓷增益介质以各种配置应用。 还公开了放大光信号的方法,其中用光能泵浦玻璃 - 陶瓷增益介质以激发过渡金属离子,并且光的信号通过增益介质传输,同时过渡金属离子被激发 ,由此光的信号被放大。 还公开了一种产生激光振荡的方法,其中玻璃 - 陶瓷增益介质包括在激光腔中,用光能泵浦以激发过渡金属离子,并且所产生的辐射被迫使用反射表面进行振荡以进行反馈 。

    Sodium fluormica glass-ceramics
    7.
    发明授权
    Sodium fluormica glass-ceramics 失效
    氟化钠玻璃陶瓷

    公开(公告)号:US4624933A

    公开(公告)日:1986-11-25

    申请号:US811382

    申请日:1985-12-20

    IPC分类号: C03C3/112 C03C10/16 H05K1/03

    CPC分类号: C03C10/16 H05K1/0366

    摘要: A family of synthetic mica glass-ceramic compositions is disclosed based on a modified sodium fluoromontmorillonoid stoichiometry. These are spontaneously crystallizable glass-ceramics which are composed of 50-62% SiO.sub.2, 20-28% MgO, 5-15% Na.sub.2 O, and 8-13% F. The method comprises supplying excess fluoride during melting to devise a synthetic mica having sodium fluoromontmorillonoid or a solid solution on the talc axis as the dominant crystal phase.

    摘要翻译: 基于改性的氟类蒙脱石化学计量学公开了一系列合成云母玻璃 - 陶瓷组合物。 这些是可自发结晶的玻璃陶瓷,其由50-62%SiO 2,20-28%MgO,5-15%Na 2 O和8-13%F组成。该方法包括在熔化期间供应过量氟化物以设计合成云母具有 氟代蒙脱石钠或滑石轴上的固溶体作为主要结晶相。

    Glass-ceramics containing cristobalite and potassium fluorrichterite
    8.
    发明授权
    Glass-ceramics containing cristobalite and potassium fluorrichterite 失效
    含有方英石和氟化菱铁矿的玻璃陶瓷

    公开(公告)号:US4608348A

    公开(公告)日:1986-08-26

    申请号:US794841

    申请日:1985-11-04

    CPC分类号: C03C10/16

    摘要: This invention is directed to the production of glass-ceramic articles exhibiting great toughness, a modulus of rupture of at least 20,000 psi, and, in the form of bars having dimensions 5".times.0.5".times.0.1", sagging during the crystallization heat treatment of no more than 0.2" over a 4" span, and wherein potassium fluorrichterite constitutes the predominant crystal phase but wherein cristobalite is also present in an amount of at least 10% by volume. The inventive articles having an overall composition consisting essentially, in weight percent on the oxide basis, of:______________________________________ SiO.sub.2 65-69 Na.sub.2 O 1.5-3.3 Al.sub.2 O.sub.3 0.75-3.5 K.sub.2 O 4.2-6.0 MgO 13.5-17.5 BaO 0-2.5 CaO 3-4.8 P.sub.2 O.sub.5 `0-2.5 Li.sub.2 O 0.5-2.0 F 3.3-5.5 ______________________________________

    摘要翻译: 本发明涉及生产具有很高韧性,断裂模量至少20,000psi的玻璃陶瓷制品,以及具有尺寸为5'0.5'0.1“的条形状的下垂 在结晶热处理期间在4“跨度处不超过0.2”的结晶热处理中,并且其中氟代氟铁矿构成主要结晶相,但其中方英石也以至少10体积%的量存在。 具有基本上以氧化物为基准的重量百分数的本发明制品为:-SiO 2 65-69 Na 2 O 1.5-3.3 -Al 2 O 3 0.75-3.5 K 2 O 4.2-6.0 -MgO 13.5-17.5 BaO 0-2.5 -CaO 3 -4.8 P2O5'0-2.5 -Li2O 0.5-2.0 F 3.3-5.5 -

    High modulus glass-ceramics containing fine grained spinel-type crystals
    10.
    发明授权
    High modulus glass-ceramics containing fine grained spinel-type crystals 失效
    含有细晶尖晶石型晶体的高模量玻璃陶瓷

    公开(公告)号:US5476821A

    公开(公告)日:1995-12-19

    申请号:US332703

    申请日:1994-11-01

    CPC分类号: G11B5/7315 C03C10/0036

    摘要: This invention is directed at glass-ceramic articles, and methods for producing such articles, exhibiting Young's modulus between about 14 to 24.times.10.sup.6 psi and a fracture toughness in excess of 1.0 MPa.sqroot. in. The crystal phase assemblage is comprised predominately of generally uniformly-sized spinel-type crystals which are uniformly dispersed within a highly siliceous residual glass matrix phase. The composition of these glass-ceramic articles is consists essentially, expressed in terms of weight percent on the oxide basis, of 35-60% SiO.sub.2, 20-35% Al.sub.2 O.sub.3, 0-25% MgO, 0-25% ZnO, at least about 10% MgO+ZnO, 0-20% TiO.sub.2, 0-10% ZrO.sub.2, 0-2% Li.sub.2 O and 0-8% NiO. However, if the Al.sub.2 O.sub.3 constituent is present in an amount less than about 25%, the TiO.sub.2 +ZrO.sub.2 +NiO amount should be at least 5%. The composition may also contain up to 5% of optional constituents selected from the group consisting of BaO, CaO, PbO, SrO, P.sub.2 O.sub.5, B.sub.2 O.sub.3, Ga.sub.2 O.sub.3, 0-5% R.sub.2 O and 0- 8% of a transition metal oxide; the R.sub.2 O selected from the group consisting of Na.sub.2 O, K.sub.2 O, Rb.sub.2 O and C.sub.2 O.

    摘要翻译: 本发明涉及玻璃陶瓷制品,以及用于制造这种制品的方法,其展示杨氏模量在约14至24×10 6 psi之间,断裂韧性超过1.0MPa 2ROOT in。晶相组合主要由通常均匀的尺寸 均匀分散在高度硅质残留玻璃基质相中的尖晶石型晶体。 这些玻璃陶瓷制品的组成基本上以氧化物的重量百分比表示,包括35-60%SiO 2,20-35%Al 2 O 3,0-25%MgO,0-25%ZnO,至少 约10%的MgO + ZnO,0-20%的TiO 2,0-10%的ZrO 2,0-2%的Li 2 O和0-8%的NiO。 然而,如果Al 2 O 3组分以小于约25%的量存在,则TiO 2 + ZrO 2 + NiO的量应至少为5%。 该组合物还可以含有高达5%的选自BaO,CaO,PbO,SrO,P 2 O 5,B 2 O 3,Ga 2 O 3,0-5%R 2 O和0-8%的过渡金属氧化物的任选成分; R2O选自Na2O,K2O,Rb2O和C2O。