Abstract:
A magnetizable glass ceramic composition including: a continuous first glass phase including SiO2, B2O3, P2O5, and R2O; a discontinuous second glass phase including at least one of SiO2, B2O3, P2O5, R2O, or mixtures thereof; and a discrete magnetizable crystalline phase dispersed in the discontinuous second glass phase, where R2O is selected from at least one of K2O, Li2O, Na2O, or mixtures thereof. Also disclosed are a method of making and a method of using the magnetizable glass ceramic composition.
Abstract:
A method for forming a plurality of precision holes in a substrate by drilling, including affixing a sacrificial cover layer to a surface of the substrate, positioning a laser beam in a predetermined location relative to the substrate and corresponding to a desired location of one of the plurality of precision holes, forming a through hole in the sacrificial cover layer by repeatedly pulsing a laser beam at the predetermined location, and pulsing the laser beam into the through hole formed in the sacrificial cover layer. A work piece having precision holes including a substrate having the precision holes formed therein, wherein a longitudinal axis of each precision hole extends in a thickness direction of the substrate, and a sacrificial cover layer detachably affixed to a surface of the substrate, such that the sacrificial cover layer reduces irregularities of the precision holes.
Abstract:
In some embodiments, an ultrasonic tank includes a container, an etching solution tank comprising a working area disposed within the container, and a plurality of ultrasonic transducers arranged about a perimeter of the etching solution tank in a configuration that provides a standard deviation of ultrasonic power within the working area of less than about 0.35.
Abstract:
A method for forming a plurality of precision holes in a substrate by drilling, including affixing a sacrificial cover layer to a surface of the substrate, positioning a laser beam in a predetermined location relative to the substrate and corresponding to a desired location of one of the plurality of precision holes, forming a through hole in the sacrificial cover layer by repeatedly pulsing a laser beam at the predetermined location, and pulsing the laser beam into the through hole formed in the sacrificial cover layer. A work piece having precision holes including a substrate having the precision holes formed therein, wherein a longitudinal axis of each precision hole extends in a thickness direction of the substrate, and a sacrificial cover layer detachably affixed to a surface of the substrate, such that the sacrificial cover layer reduces irregularities of the precision holes.