Difference between revisions of "Flux"

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A substance that assists in the fusing of [[mineral|minerals]], [[metal|metals]], ceramic [[glaze|glazes]], or [[glass]].  A flux may lower the melting point, minimize surface tension, coagulate impurities or prevent the formation of oxides.  Examples of fluxes are:
 
A substance that assists in the fusing of [[mineral|minerals]], [[metal|metals]], ceramic [[glaze|glazes]], or [[glass]].  A flux may lower the melting point, minimize surface tension, coagulate impurities or prevent the formation of oxides.  Examples of fluxes are:
  
- Alkaline fluxes (used for glazes, glass): [[sodium carbonate]] (soda), [[lead sulfate, basic|white lead]], [[lead tetroxide|red lead]], [[potassium carbonate]] (potash), [[borax]], [[sodium oxide]], [[potassium oxide]], and [[lithium oxide]].  
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* Alkaline fluxes (used for glazes, glass): [[sodium carbonate]] (soda), [[lead sulfate, basic|white lead]], [[lead tetroxide|red lead]], [[potassium carbonate]] (potash), [[borax]], [[sodium oxide]], and [[lithium oxide]].  
  
- Acidic fluxes: [[sodium bisulfate]], potassium bisulfate, and [[boric oxide]].
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* Acidic fluxes: [[sodium bisulfate]], potassium bisulfate, and [[boric oxide]].
  
- Oxidizing fluxes: [[sodium nitrate]], [[sodium peroxide]], and [[sodium chlorate]].
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* Oxidizing fluxes: [[sodium nitrate]], [[sodium peroxide]], and [[sodium chlorate]].
  
- Reducing fluxes (used in soldering and welding): sodium carbonate, borax mixed with activated [[charcoal]].
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* Reducing fluxes (used in soldering and welding): sodium carbonate, borax mixed with activated [[charcoal]].
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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fondant (Fr.); fondente (It.)
 
fondant (Fr.); fondente (It.)
  
== Authority ==
+
== Resources and Citations ==
  
 
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
 
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
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* David Scott, 'Copper Compounds in Metals and Colorants: Oxides and Hydroxides', ''Studies in Conservation'', 42, 93-100, 1997
 
* David Scott, 'Copper Compounds in Metals and Colorants: Oxides and Hydroxides', ''Studies in Conservation'', 42, 93-100, 1997
  
* David Scott, 'Copper Compounds in Metals and Colorants: Oxides and Hydroxides', ''Studies in Conservation'', 42, 93-100, 1997
 
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 11:22, 7 August 2020

Description

A substance that assists in the fusing of minerals, metals, ceramic glazes, or Glass. A flux may lower the melting point, minimize surface tension, coagulate impurities or prevent the formation of oxides. Examples of fluxes are:

  • Reducing fluxes (used in soldering and welding): sodium carbonate, borax mixed with activated Charcoal.

Synonyms and Related Terms

fondant (Fr.); fondente (It.)

Resources and Citations

  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
  • Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 336
  • G.G. Hawley, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 6th ed., 1961
  • Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988
  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • David Scott, 'Copper Compounds in Metals and Colorants: Oxides and Hydroxides', Studies in Conservation, 42, 93-100, 1997