Patent application number | Description | Published |
20090274869 | COLORED MACHINABLE GLASS-CERAMICS - The invention relates to opaque, colored glass-ceramic articles and to the production of opaque, colored glass-ceramic articles which can be readily formed to a desired shape using standard metal-working tools. The glass-ceramic material used to make such articles contains mica crystals as the predominant phase. The desired color is obtained through the addition of a colorant system to the precursor glass. In a particular embodiment the invention is directed to a black glass-ceramic article, the black color being obtained by the addition of iron oxides in levels as high as 20 wt %, which can yield a glass-ceramic having an iron-rice mica phase and/or a glass ceramic having an iron-rich mica phase plus an iron oxide phase. | 11-05-2009 |
20100127343 | Glass-Ceramic-Based Semiconductor-On-Insulator Structures and Method For Making The Same - Methods and apparatus for forming a semiconductor on glass-ceramic structure provide for: subjecting an implantation surface of a donor semiconductor wafer to an ion implantation process to create an exfoliation layer of the donor semiconductor wafer; bonding the implantation surface of the exfoliation layer to a precursor glass substrate using electrolysis; separating the exfoliation layer from the donor semiconductor wafer to thereby form an intermediate semiconductor on precursor glass structure; sandwiching the intermediate semiconductor on precursor glass structure between first and second support structures; applying pressure to one or both of the first and second support structures; and subjecting the intermediate semiconductor on precursor glass structure to heat-treatment step to crystallize the precursor glass resulting in the formation of a semiconductor on glass-ceramic structure. | 05-27-2010 |
20100275767 | MULTI-HIT CAPABLE TRANSPARENT, MULTI-STACK ARMOR SYSTEM - A transparent armor laminate system includes a plurality of sub-stacks separated by an interlayer. The sub-stacks include a plurality of layers including a glass ceramic front strike-face layer, a backing layer comprising a spall-resistant material, and at least one glass layer laminated between the strike-face and backing layers. The interlayer isolates cracks between sub-stacks, and may include an isolating material such as a polymer, gas, or liquid. The laminate system offers improved performance with reduced weight over conventional all-glass or all-glass-ceramic transparent armors. | 11-04-2010 |
20100326029 | Permeable Material, Articles made therefrom and method of manufacture - The invention is directed to a honeycomb comprising cordierite and beta-spudomene, the honeycomb a having total porosity of greater than 30% and a mean pore diameter of less than 5 μm. The honeycomb is made from a mixture of activated kaolin and a mineral selected from the group consisting of lithium fluorhectorite, lithium hydroxyhectorite and mixtures thereof. In one embodiment up to 20 wt % SiO2, based on the total weight of the kaolin and minerals (fluarhectorite, hydroxyhectorite) is added and mixed therein prior to the formation of the green body. In another embodiment the amount of added SiO2 is up to 10 wt %. In one embodiment the total porosity is greater than 50% and the mean pore diameter is less than 5 μm. | 12-30-2010 |
20110088541 | TRANSPARENT ARMOUR HAVING IMPROVED BALLISTIC PROPERTIES - This disclosure teaches the use of low density, “open”-structure glasses as backing glasses, behind glass-ceramic strike-faces, in transparent armor composite windows. These low density “open-structure’ glasses are sometimes referred to as “anomalous” glasses. For transparent armor applications both silica, including fused silica, and borosilicate glasses can be used as backing glass. These backing glasses provide improved ballistics performance over that of standard commercial soda lime backing glass. These glasses should be used either in their as-formed state (e.g. float surfaces) or should be finished using a process designed for minimizing sub-surface damage. | 04-21-2011 |
20110293942 | VARIABLE TEMPERATURE/CONTINUOUS ION EXCHANGE PROCESS - A method of ion exchanging glass and glass ceramic articles. The method includes immersion of at least one such article in an ion exchange bath having a first end and a second end that are heated to first and second temperatures, respectively. The first and second temperature may either be equal or different from each other, with the latter state creating a temperature gradient across or along the ion exchange bath. Continuous processing of multiple articles is also possible in the ion exchange bath. | 12-01-2011 |
20120135848 | FUSION FORMED AND ION EXCHANGED GLASS-CERAMICS - The present disclosure relates to fusion formable highly crystalline glass-ceramic articles whose composition lies within the SiO | 05-31-2012 |
20120174761 | TRANSPARENT ARMOR WITH IMPROVED MULTI-HIT PERFORMANCE BY USE OF A THIN COVER GLASS - The disclosure is directed to a transparent armor laminate having a glass, glass-ceramic or ceramic strike face layer, one or a plurality of glass, glass-ceramic (“GC”), ceramic (“C”) or polymeric (“P”) backing layer behind the strike face layer, one or a plurality of spall catcher (“SC”) layers behind the backing layer(s), and a thin cover glass layer laminated to the strike face, the thin layer being the first layer to be impacted by any incoming projectile or debris. The cover glass has a thickness ≦3 mm. In another embodiment the cover glass thickness is ≦1 mm. Additionally, a defrosting/defogging element is laminated between the cover glass and the strike face. | 07-12-2012 |
20130160412 | PERMEABLE MATERIAL, ARTICLES MADE THEREFROM AND METHOD OF MANUFACTURE - The invention is directed to a honeycomb comprising cordierite and β-spudomene, the honeycomb having a having total porosity of greater than 30% and a mean pore diameter of less than 5 μm. The honeycomb is made from a mixture of activated kaolin and a mineral selected from the group consisting of lithium fluorhectorite, lithium hydroxyhectorite and mixtures thereof. In one embodiment up to 20 wt % weight SiO | 06-27-2013 |
20130274085 | WHITE, OPAQUE BETA-SPODUMENE/RUTILE GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME - Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO | 10-17-2013 |
20130296155 | WHITE, OPAQUE, -SPODUMENE/RUTILE GLASS-CERAMICS; ARTICLES COMPRISING THE SAME; AND METHODS FOR MAKING THE SAME - Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO | 11-07-2013 |
20140057092 | WHITE, OPAQUE, -SPODUMENE/RUTILE GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME - Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO | 02-27-2014 |
20140066285 | COLORED AND OPAQUE GLASS-CERAMIC(S), ASSOCIATED COLORABLE AND CERAMABLE GLASS(ES), AND ASSOCIATED PROCESS(ES) - Disclosed herein are glass-ceramics having crystalline phases including β-spodumene ss and either (i) pseudobrookite or (ii) vanadium or vanadium containing compounds so as to be colored and opaque glass-ceramics having coordinates, determined from total reflectance—specular included—measurements, in the CIELAB color space of the following ranges: L*=from about 20 to about 45; a*=from about −2 to about +2; and b*=from about −12 to about +1. Such CIELAB color space coordinates can be substantially uniform throughout the glass-ceramics. In each of the proceeding, β-quartz ss can be substantially absent from the crystalline phases. If present, β-quartz ss can be less than about 20 wt % or, alternatively, less than about 15 wt % of the crystalline phases. Also Further crystalline phases might include spinel ss (e.g., hercynite and/or gahnite-hercynite ss), rutile, magnesium zinc phosphate, or spinel ss (e.g., hercynite and/or gahnite-hercynite ss) and rutile. | 03-06-2014 |
20150044474 | FUSION FORMED AND ION EXCHANGED GLASS-CERAMICS - The present disclosure relates to fusion formable highly crystalline glass-ceramic articles whose composition lies within the SiO | 02-12-2015 |