DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nano-materials for adhesive-free adsorbers for bakable extreme high vacuum cryopump surfaces

Abstract

A cryosorber panel having nanomaterials used for the cryosorption material, with nanomaterial either grown directly on the cryopanel or freestanding nanomaterials attached to the cryopanel mechanically without the use of adhesives. Such nanomaterial cryosorber materials can be used in place of conventional charcoals that are attached to cryosorber panels with special low outgassing, low temperature capable adhesives. Carbon nanotubes and other nanomaterials could serve the same purpose as conventional charcoal cryosorbers, providing a large surface area for cryosorption without the need for adhesive since the nanomaterials can be grown directly on a metallic substrate or mechanically attached. The nanomaterials would be capable of being fully baked by heating above 100.degree. C., thereby eliminating water vapor from the system, eliminating adhesives from the system, and allowing a full bake of the system to reduce hydrogen outgassing, with the goal of obtaining extreme high vacuum where the pump can produce pressures below 1.times.10.sup.-12 Torr.

Inventors:
; ;
Issue Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1328704
Patent Number(s):
9463433
Application Number:
14/300,464
Assignee:
JEFFERSON SCIENCE ASSOCIATES, LLC (Newport News, VA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04B - POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 10
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Stutzman, Marcy, Jordan, Kevin, and Whitney, Roy R. Nano-materials for adhesive-free adsorbers for bakable extreme high vacuum cryopump surfaces. United States: N. p., 2016. Web.
Stutzman, Marcy, Jordan, Kevin, & Whitney, Roy R. Nano-materials for adhesive-free adsorbers for bakable extreme high vacuum cryopump surfaces. United States.
Stutzman, Marcy, Jordan, Kevin, and Whitney, Roy R. Tue . "Nano-materials for adhesive-free adsorbers for bakable extreme high vacuum cryopump surfaces". United States. https://www.osti.gov/servlets/purl/1328704.
@article{osti_1328704,
title = {Nano-materials for adhesive-free adsorbers for bakable extreme high vacuum cryopump surfaces},
author = {Stutzman, Marcy and Jordan, Kevin and Whitney, Roy R.},
abstractNote = {A cryosorber panel having nanomaterials used for the cryosorption material, with nanomaterial either grown directly on the cryopanel or freestanding nanomaterials attached to the cryopanel mechanically without the use of adhesives. Such nanomaterial cryosorber materials can be used in place of conventional charcoals that are attached to cryosorber panels with special low outgassing, low temperature capable adhesives. Carbon nanotubes and other nanomaterials could serve the same purpose as conventional charcoal cryosorbers, providing a large surface area for cryosorption without the need for adhesive since the nanomaterials can be grown directly on a metallic substrate or mechanically attached. The nanomaterials would be capable of being fully baked by heating above 100.degree. C., thereby eliminating water vapor from the system, eliminating adhesives from the system, and allowing a full bake of the system to reduce hydrogen outgassing, with the goal of obtaining extreme high vacuum where the pump can produce pressures below 1.times.10.sup.-12 Torr.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {10}
}

Works referenced in this record:

Cryopump method and apparatus
patent, April 1994


Battery cell
patent, November 2012


Boron nitride nanotube fibrils and yarns
patent-application, August 2010


Battery Cell
patent-application, May 2011


Lithium super-battery with a functionalized nano graphene cathode
patent-application, February 2012