Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Materials_for_use_in_vacuum> ?p ?o }
- Materials_for_use_in_vacuum abstract "Materials for use in vacuum are materials showing very low rate of outgassing in vacuum, and, where applicable, tolerant to the bake-out temperatures. The requirements grow increasingly stringent with the desired degree of vacuum achievable in the vacuum chamber.The materials can produce gas by several mechanisms. Molecules of gases and water can be adsorbed on the material surface (therefore materials with low affinity to water have to be chosen, which eliminates many plastics). Materials may sublimate in vacuum (this excludes some metals and their alloys, most notably cadmium and zinc). Or the gases can be released from porous materials or from cracks and crevices. Traces of lubricants, residues from machining, can be present on the surfaces. A specific risk is outgassing of solvents absorbed in plastics after cleaning.The gases liberated from the materials not only lower the vacuum quality, but also can be reabsorbed on other surfaces, creating deposits and contaminating the chamber.Yet another problem is diffusion of gases through the materials themselves. Atmospheric helium can diffuse even through Pyrex glass, even if slowly; this however is usually not an issue. Some materials might also expand or increase in size causing problems in delicate equipment.In addition to the gas-related issues, the materials have to maintain adequate strength through the entire required temperature range (sometimes reaching cryogenic temperatures), maintain their properties (elasticity, plasticity, electrical and thermal conductivity or lack of it, etc.), be possible to machine, and if possible not being overly expensive. Yet another concern is the thermal expansion coefficient match of adjacent parts.".
- Materials_for_use_in_vacuum wikiPageExternalLink VacLab36.pdf.
- Materials_for_use_in_vacuum wikiPageID "32683499".
- Materials_for_use_in_vacuum wikiPageLength "15679".
- Materials_for_use_in_vacuum wikiPageOutDegree "131".
- Materials_for_use_in_vacuum wikiPageRevisionID "683327731".
- Materials_for_use_in_vacuum wikiPageWikiLink Absorption_(chemistry).
- Materials_for_use_in_vacuum wikiPageWikiLink Acrylate_polymer.
- Materials_for_use_in_vacuum wikiPageWikiLink Adsorption.
- Materials_for_use_in_vacuum wikiPageWikiLink Allotropes_of_oxygen.
- Materials_for_use_in_vacuum wikiPageWikiLink Alumina.
- Materials_for_use_in_vacuum wikiPageWikiLink Aluminium.
- Materials_for_use_in_vacuum wikiPageWikiLink Aluminium_alloy.
- Materials_for_use_in_vacuum wikiPageWikiLink Aluminium_alloys.
- Materials_for_use_in_vacuum wikiPageWikiLink Aluminium_bronze.
- Materials_for_use_in_vacuum wikiPageWikiLink Aluminium_oxide.
- Materials_for_use_in_vacuum wikiPageWikiLink Anodized.
- Materials_for_use_in_vacuum wikiPageWikiLink Anodizing.
- Materials_for_use_in_vacuum wikiPageWikiLink Antimony.
- Materials_for_use_in_vacuum wikiPageWikiLink Atomic_oxygen.
- Materials_for_use_in_vacuum wikiPageWikiLink Austenitic_stainless_steel.
- Materials_for_use_in_vacuum wikiPageWikiLink Bake-out.
- Materials_for_use_in_vacuum wikiPageWikiLink Bell_jar.
- Materials_for_use_in_vacuum wikiPageWikiLink Beryllium.
- Materials_for_use_in_vacuum wikiPageWikiLink Boron_nitride.
- Materials_for_use_in_vacuum wikiPageWikiLink Borosilicate_glass.
- Materials_for_use_in_vacuum wikiPageWikiLink Brass.
- Materials_for_use_in_vacuum wikiPageWikiLink Brazing.
- Materials_for_use_in_vacuum wikiPageWikiLink Cadmium.
- Materials_for_use_in_vacuum wikiPageWikiLink Cadmium_plating.
- Materials_for_use_in_vacuum wikiPageWikiLink Carbon_steel.
- Materials_for_use_in_vacuum wikiPageWikiLink Category:Materials.
- Materials_for_use_in_vacuum wikiPageWikiLink Category:Vacuum_systems.
- Materials_for_use_in_vacuum wikiPageWikiLink Ceramics-to-metal_seal.
- Materials_for_use_in_vacuum wikiPageWikiLink Copper.
- Materials_for_use_in_vacuum wikiPageWikiLink Corrosion_in_space.
- Materials_for_use_in_vacuum wikiPageWikiLink Cryogenic.
- Materials_for_use_in_vacuum wikiPageWikiLink Cryogenics.
- Materials_for_use_in_vacuum wikiPageWikiLink Cupronickel.
- Materials_for_use_in_vacuum wikiPageWikiLink Dry_lubricant.
- Materials_for_use_in_vacuum wikiPageWikiLink Elastomer.
- Materials_for_use_in_vacuum wikiPageWikiLink FKM.
- Materials_for_use_in_vacuum wikiPageWikiLink Ferromagnetism.
- Materials_for_use_in_vacuum wikiPageWikiLink Fluoropolymer.
- Materials_for_use_in_vacuum wikiPageWikiLink Flux_(metallurgy).
- Materials_for_use_in_vacuum wikiPageWikiLink Galling.
- Materials_for_use_in_vacuum wikiPageWikiLink Getter.
- Materials_for_use_in_vacuum wikiPageWikiLink Gettering.
- Materials_for_use_in_vacuum wikiPageWikiLink Glass-to-metal_seal.
- Materials_for_use_in_vacuum wikiPageWikiLink Gold.
- Materials_for_use_in_vacuum wikiPageWikiLink Graphite.
- Materials_for_use_in_vacuum wikiPageWikiLink Grease_(lubricant).
- Materials_for_use_in_vacuum wikiPageWikiLink Helium.
- Materials_for_use_in_vacuum wikiPageWikiLink Hot_cathode.
- Materials_for_use_in_vacuum wikiPageWikiLink Indium.
- Materials_for_use_in_vacuum wikiPageWikiLink Inert.
- Materials_for_use_in_vacuum wikiPageWikiLink Ionizing_radiation.
- Materials_for_use_in_vacuum wikiPageWikiLink Kapton.
- Materials_for_use_in_vacuum wikiPageWikiLink Krytox.
- Materials_for_use_in_vacuum wikiPageWikiLink Lead.
- Materials_for_use_in_vacuum wikiPageWikiLink Liquid_oxygen.
- Materials_for_use_in_vacuum wikiPageWikiLink List_of_brazing_alloys.
- Materials_for_use_in_vacuum wikiPageWikiLink Lubricant.
- Materials_for_use_in_vacuum wikiPageWikiLink Macor.
- Materials_for_use_in_vacuum wikiPageWikiLink Magnesium.
- Materials_for_use_in_vacuum wikiPageWikiLink Magnetic_permeability.
- Materials_for_use_in_vacuum wikiPageWikiLink Micarta.
- Materials_for_use_in_vacuum wikiPageWikiLink Micrometeoroid.
- Materials_for_use_in_vacuum wikiPageWikiLink Micrometeoroids.
- Materials_for_use_in_vacuum wikiPageWikiLink Mild_steel.
- Materials_for_use_in_vacuum wikiPageWikiLink Molybdenum.
- Materials_for_use_in_vacuum wikiPageWikiLink Molybdenum_disulfide.
- Materials_for_use_in_vacuum wikiPageWikiLink Nalgene.
- Materials_for_use_in_vacuum wikiPageWikiLink Neutron.
- Materials_for_use_in_vacuum wikiPageWikiLink Nickel.
- Materials_for_use_in_vacuum wikiPageWikiLink Niobium.
- Materials_for_use_in_vacuum wikiPageWikiLink Nitrile_rubber.
- Materials_for_use_in_vacuum wikiPageWikiLink Nylon.
- Materials_for_use_in_vacuum wikiPageWikiLink Outgassing.
- Materials_for_use_in_vacuum wikiPageWikiLink Oxygen-free_copper.
- Materials_for_use_in_vacuum wikiPageWikiLink PEEK.
- Materials_for_use_in_vacuum wikiPageWikiLink PTFE.
- Materials_for_use_in_vacuum wikiPageWikiLink PVC.
- Materials_for_use_in_vacuum wikiPageWikiLink Paint.
- Materials_for_use_in_vacuum wikiPageWikiLink Perfluoropolyether.
- Materials_for_use_in_vacuum wikiPageWikiLink Permeability_(electromagnetism).
- Materials_for_use_in_vacuum wikiPageWikiLink Plastic.
- Materials_for_use_in_vacuum wikiPageWikiLink Plastics.
- Materials_for_use_in_vacuum wikiPageWikiLink Plating.
- Materials_for_use_in_vacuum wikiPageWikiLink Platinum.
- Materials_for_use_in_vacuum wikiPageWikiLink Polycarbonate.
- Materials_for_use_in_vacuum wikiPageWikiLink Polyethylene.
- Materials_for_use_in_vacuum wikiPageWikiLink Polyimide.
- Materials_for_use_in_vacuum wikiPageWikiLink Polyphenyl_ether.
- Materials_for_use_in_vacuum wikiPageWikiLink Polystyrene.
- Materials_for_use_in_vacuum wikiPageWikiLink Polytetrafluoroethylene.
- Materials_for_use_in_vacuum wikiPageWikiLink Polyvinyl_chloride.
- Materials_for_use_in_vacuum wikiPageWikiLink Polyvinylidene_fluoride.
- Materials_for_use_in_vacuum wikiPageWikiLink Porcelain.
- Materials_for_use_in_vacuum wikiPageWikiLink Porosity.