Hy-tech Research Corporation

Bwxt Y-12, LLC

John Niemel

C Christopher Klepper

Robert C Hazelton

Michael D Keitz

Marvin S Morrow

Donald E Schechter

Chin-Chi Tsai

Caterina Vidoli

Edward J Yadlowsky

Boron powders are sintered and densified utilizing a microwave environment for so doing.

Microwave processing of pressed boron powders for use as cathodes in vacuum arc sources

A method and apparatus for depositing a ceramic film on a substrate by vacuum arc deposition, includes a vacuum chamber, a cathode comprised of an electrically conductive ceramic material to be deposited on a substrate, an electrically insulating member about the cathode, a heater for preheating the cathode to a predetermined temperature, an anode positioned downstream of the cathode and including an opening to allow ions of the ceramic material from the cathode to flow therethrough, a substrate support positioned downstream of the anode, and a plurality of magnetic members disposed around the vacuum chamber for guiding the ions from the cathode in a predetermined direction.

Method and apparatus for depositing ceramic films by vacuum arc deposition

A diagnostic method and apparatus includes a pressure gauge member having an enclosed housing, an anode plate, a pair of cathode plates sandwiching the anode plate, an anode connector at an external surface of the gauge, and a lead connecting the anode plate to the anode connector. Each of the anode plate, pair of cathode plates, and lead are confined within the gauge housing. A power supply is provided for supplying power to the anode connector, the power supply including a positive terminal and a negative terminal. A resistor is connected to each of the positive terminal of the power supply and the anode connector of the gauge member. A pair of electromagnets are positioned adjacent the gauge member, each electromagnet having a pole piece formed therein for completing a magnetic circuit outside of the gauge. A power amplifier supplies varying power to the electromagnets, and a feedback circuit is connected to the gauge, the power supply, the said power amplifier for proportionally and selectively changing a strength of the electromagnets upon detecting an opposing change in current discharge from the gauge.

Species-selective pressure gauge with extended operation

Growing community of inventors

Alexandria, VA, United States of America

John Niemel