摘要:
A method and apparatus for providing a uniform coating thickness along an axial direction within an internal portion of a substrate tube is disclosed. A gas delivery unit is configured to coat the internal portion of the substrate tube. The gas delivery unit includes an insert. At least one of an inner diameter of the insert, a length of the insert, a gap between the insert and the substrate tube, and a flow of the gas mixture delivered to the substrate tube is configured to provide the uniform coating thickness along the axial direction.
摘要:
A glass substrate having an oleophobic surface. The surface is substantially free of features that form a reentrant geometry and includes a plurality of gas-trapping features extending from the surface to a depth below the surface and a coating comprising at least one of a fluoropolymer and a fluorosilane. The gas-trapping features are substantially isolated from each other, and trap gas below droplets to prevent wetting of the surface.
摘要:
A method of forming a templated casting involves incorporating a liquid feedstock into the channels of a honeycomb substrate to form a feedstock-laden substrate, solidifying the liquid feedstock within the channels, and then locally melting and directionally re-solidifying the feedstock.
摘要:
The invention relates to methods of making articles of semiconducting material and semiconducting material articles formed thereby, such as articles of semiconducting material that may be useful in making photovoltaic cells.
摘要:
A method of forming a templated casting involves incorporating a liquid feedstock into the channels of a honeycomb substrate to form a feedstock-laden substrate, and directionally solidifying the liquid feedstock within the channels.
摘要:
A substrate having a durable hydrophobic and/or oleophobic surface. The durable hydrophobic and/or oleophobic surface includes a first layer that is disposed on the substrate and comprises inorganic nanoparticles, an outer layer comprising a fluorosilane, and an optional immobilizing layer that comprises at least one of an inorganic oxide and a silsesquioxane. The durable surface is capable of retaining optical properties, such as haze, and hydrophobic and/or oleophobic properties after repeated contact with foreign objects such as, for example, wiping with a cloth or human finger.
摘要:
A method of treating a sheet of semiconducting material comprises forming a sinterable first layer over each major surface of a sheet of semiconducting material, forming a second layer over each of the first layers to form a particle-coated semiconductor sheet, placing the particle-coated sheet between end members, heating the particle-coated sheet to a temperature effective to at least partially sinter the first layer and at least partially melt the semiconducting material, and cooling the particle-coated sheet to solidify the semiconducting material and form a treated sheet of semiconducting material.
摘要:
Methods for making and/or treating articles of semiconducting material are disclosed. In various methods, a first article of semiconducting material is provided, the first article of semiconducting material is heated sufficiently to melt the semiconducting material, and the melted semiconducting material is solidified in a direction substantially parallel to a shortest dimension of the melted article of semiconducting material. Articles of semiconducting materials made by methods described herein are also disclosed.
摘要:
A method of making an article of a semiconducting material involves withdrawing from a melt of molten semiconducting material a solid mold having already formed on an external surface of the mold a solid layer of the semiconducting material. During the act of withdrawal, one or more of a temperature, a force, and a relative rate of withdrawal are controlled in order to achieve one or more desired attributes in a solid overlayer of semiconductor material that is formed over the solid layer during the withdrawal.
摘要:
A method of forming a templated casting involves incorporating a liquid feedstock into the channels of a honeycomb substrate to form a feedstock-laden substrate, solidifying the liquid feedstock within the channels, and then locally melting and directionally re-solidifying the feedstock.