Abstract:
A silica-based substrate includes a glass phase and a dispersed phase having carbon, such that the silica-based substrate has a thickness of at least 10 µm. Also disclosed is a method of forming a silica-based substrate, the method including contacting a porous silica soot preform with an organic solution having at least one hydrocarbon precursor to form a doped silica soot preform and heating the doped silica soot preform in an inert atmosphere to form the silica-based substrate.
Abstract:
A method of producing bi-modal particles includes the steps of igniting a first precursor gas using a primary burner thereby producing a first plurality of particles of a first size, fluidly transporting the first plurality of particles down a particle tube, igniting a second precursor gas using a secondary burner thereby producing a second plurality of particles of a second size, flowing the second plurality of particles into the first plurality of particles, and capturing the first and second plurality of particles.
Abstract translation:生产双峰颗粒的方法包括以下步骤:使用主燃烧器点燃第一前体气体,从而产生第一大小的第一多个颗粒,将第一多个颗粒向下流动地输送 使用第二燃烧器点燃第二前体气体,由此产生第二大小的第二大小的颗粒,使第二大量颗粒流入第一大量颗粒中,并捕获第一和第二大量颗粒。 p >
Abstract:
Described herein are various systems and methods for using acidic media to enhance the surface characteristics of glass articles while reducing the adverse effects of precipitate/sludge formation. The systems and methods generally implement a precipitation-capturing device that is configured to 1) permit formation of sludge thereon and 2) reduce formation of the sludge on other solid surfaces involved in the systems and methods.
Abstract:
Described herein is a cordierite membrane coated on a monolith substrate formed from cordierite. The membrane coating is formed from cordierite particles which have been processed to have a median particle size diameter of between 1 and 3 microns with a narrow particle size distribution suitable for forming a cordierite membrane on a cordierite monolith substrate. After the cordierite membrane is formed on the cordierite monolith substrate, the cordierite membrane monolith has a pore size of less than 1 micron.
Abstract:
Glass-based articles comprise high effective fracture toughness. Glass-based articles comprise: a glass-based substrate comprising opposing first and second surfaces defining a substrate thickness (t s ), a substantially planar central portion, and a perimeter portion; a polymer coating disposed on at least a portion of at least one of the first or the second surfaces; and an effective fracture toughness that is greater than or equal to 1.25 MPa.m 0.5 as measured at room temperature.
Abstract:
A method for bonding a conductive metal to an oxide substrate includes applying a porous coating to a surface of the oxide substrate, the porous coating including a porous oxide and catalyst nanoparticles dispersed therein, and depositing a conductive metal onto the porous coating. A portion of the conductive metal may be deposited within the pores of the porous coating to couple the conductive metal to the porous coating. Articles are also disclosed that include the oxide substrate, the porous coating coupled to a surface of the oxide substrate, and the conductive metal coupled to the porous coating. The porous coating may include a porous oxide and catalyst nanoparticles dispersed within the metal oxide. A portion of the conductive metal may be deposited within the pores of the porous coating to interlock the conductive metal to the porous coating.
Abstract:
A method of strengthening a silica soot compact is provided. The method includes forming a mixture of silica soot particles and nanoparticles, and forming a silica soot compact from the mixture. The compact is preferably made by without solvent, preferably humidified and preferably the compact sintered. In a preferred embodiment a cladding for an optical fiber preform is made by radially compressing silica soot and nanoparticles around a partially manufactured preform placed in the inner cavity of a mold.
Abstract:
A particulate filter is provided having a filter body with at least one porous wall, and a porous coating on the wall, the coating having a median pore diameter less than 20 microns and a coating pore size deviation of less than 3 times the coating median pore diameter, and the coating having an average thickness of less than 50 microns. A method of manufacturing a particulate filter is also disclosed which includes providing a filter body with at least one porous wall, and depositing particles onto the wall, the particles having a mean particle diameter of less than about 30 microns.
Abstract:
An oxygen-ion conducting membrane structure comprising a monolithic inorganic porous support, optionally one or more porous inorganic intermediate layers, and an oxygen-ion conducting ceramic membrane. The oxygen-ion conducting hybrid membrane is useful for gas separation applications, for example O 2 separation.
Abstract:
Methods for producing a glass sheet are provided. The methods can include forming a glass ribbon from molten glass, applying a polymer precursor to at least a portion of a first or second major surface of the glass ribbon, curing the polymer precursor to form a polymer coating, and separating the glass ribbon to produce at least one glass sheet. Glass ribbons and glass sheets produced by these methods are also disclosed.