An evaluation of a bakeout procedure for small glass ultrahigh vacuum systems
Evaluation of bakeout procedure for small glass ultrahigh vacuum system
VACUUM EQUIPMENT↗
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Characteristics and potential applications of orbiting ultrahigh vacuum facilities
The characteristics of an orbiting molecular shield ultrahigh vacuum facility are described and some examples of potential applications are discussed. Published results of a kinetic theory analysis are given. Densities within the shield of less than 1000 molecules/cu cm can be obtained allowing high purity materials processing experiments to be performed in orbit under the simultaneous conditions of ultrahigh vacuum and microgravity. Two specific experiments are discussed: the production of ultrapure materials by the electrotransport technique developed at ERDA's Ames Laboratory, Iowa State University, and the vapor deposition and space preparation of silicon solar cells.
Melfi, L. T., Jr.↗
EFFECT OF ULTRAHIGH VACUUM ON VIABILITY OF MICROORGANISMS
Effect of ultrahigh vacuum on viability of microorganisms
ULTRAHIGH VACUUM↗
An ultrahigh vacuum research facility
Description of Langley Research Center ultrahigh vacuum facility
ULTRAHIGH VACUUM↗
A large ultrahigh-vacuum environmental chamber with liquid-helium-cooled liner.
Ultrahigh vacuum chamber with liquid-helium-cooled liner for space environment simulation
LIQUID HELIUM↗
A small volume, ultrahigh vacuum system for ionization gage studies
Small volume, ultrahigh vacuum system for ionization gauge studies
PRESSURE MEASUREMENT↗
Operating parameters of the omegatron mass spectrometer in ultrahigh vacuum
Operating parameters of omegatron mass spectrometer in ultrahigh vacuum determined for helium, nitrogen, argon, and carbon dioxide to give maximum sensitivity
ULTRAHIGH VACUUM↗
Baking enables McLeod gauge to measure in ultrahigh vacuum range
Accurate measurements in the ultrahigh vacuum range by a conventional McLeod gage requires degassing of the gage's glass walls. A closed system, in which mercury is forced into the gage by gravity alone, and in which the gage components are baked out for long periods, is used to achieve this degassing.
Kreisman, W. S.↗
Adhesion of silicates cleaved in ultrahigh vacuum.
Adhesion of silicates cleaved in ultrahigh vacuum, discussing atomic bonding, dispersion and electrostatic charging
Grossman, J. J.↗
Ultrahigh-Vacuum Sample-Transfer System
Ultrahigh-vacuum (UHV) sample-transfer system developed features short-term (less than 30 minutes) transfer of samples from atmospheric pressure into sample manipulator within UHV analysis system without significantly degrading system pressure. New system is austere approach to sample transfer, involving no automation. Total cost of system is factor of 10 less than commercially available instruments.
Outlaw, R.↗
Adhesion of metals in ultrahigh vacuum
Influence of surface contamination on adhesion of tungsten in ultrahigh vacuum
ADHESION↗
Experimental investigation of ultrahigh vacuum adhesion as related to the lunar surface Quarterly progress report, 27 Nov. 1967 - 31 Jan. 1968
Adhesion of ultrahigh vacuum cleaved silicates in contact with metal surfaces, and ultrahigh vacuum system for measuring electrostatic charging during cleavage
Grossman, J. J.↗
Experimental investigation of ultrahigh vacuum adhesion as related to the lunar surface
Adhesion between differing silicate minerals in which contact faces are formed simultaneously - ultrahigh vacuum adhesion
ULTRAHIGH VACUUM↗
Adhesion of metals and nonmetals in ultrahigh vacuum.
Adhesion of metals and nonmetals in ultrahigh vacuum and simulated lunar exploration radiation conditions
Hehn, A. H.↗
Electrostatic charge distribution on ultrahigh vacuum cleaved silicates.
Electrostatic charge distribution on ultrahigh vacuum cleaved silicates including instrumentation, UV irradiation, half life, Paschen relation, etc
Grossman, J. J.↗
Design and adaptation of a 2 S.C. solar simulator to an existing multiwall ultrahigh vacuum chamber.
Solar simulator built into multiwall ultrahigh vacuum chamber, describing simulator and chamber modifications
Benning, F. N.↗
High-fidelity solar simulation for an ultrahigh vacuum facility
Solar simulator built into multiwall ultrahigh vacuum chamber, describing simulator and chamber modifications
Benning, F. N.↗
Strain partitioning of three alloys in ultrahigh vacuum using the step stress method
The ultrahigh vacuum strain controlled thermal-mechanical strain cycling fatigue behavior of ASTAR 811C, 304 stainless steel and A-286 was studied. The step stress procedure of experimental strainrange partitioning was utilized to partition the inelastic strainranges for tests duplicating conditionings previously reported by TRW. An analytical method is described in which these partitioned inelastic strainrange data can be used to develop the four basic life relationships for these materials.
Kortovich, C. S.↗