4 replies to this topic

[kkala]

It is interesting to read the story of incandescent light bulbs in http://en.wikipedia....wiki/Light_bulb '> http://en.wikipedia....wiki/Light_bulb , and the increased efficiency (lumen/watt) of the new ones. Even halogen bulbs have tungsten filament, "evaporated" at a lower rate.
http://en.wikipedia....en_hexacarbonyl '> http://en.wikipedia....en_hexacarbonyl , http://www.sigmaaldr...ng=en&region=GR '> http://www.sigmaaldr...ng=en&region=GR , http://www.sciencedi...040609000009433 '> http://www.sciencedi...040609000009433 , other data from web search engines, can give you material for W(CO)6. Industrial preparation and mainly uses would be the matter I would point out.

[Technical Bard]

Tungsten is used significantly in spacecraft and satellites, due to the low vapour pressure at elevated temperature - in space the pressure is very low and temperatures due to radiation can be very high. use of other metals results in severe metal loss as the material sublimes into space.

Tungsten is also used in some alloys.

[Shivshankar]

Hi ,


Hope this helps

http://wanttoknowit....es-of-tungsten/
http://www.tungsten....sable Metal.pdf
http://www.itia.info...ter_2011_06.pdf
http://nautilus.fis....lem/e07430.html
http://www.azom.com/...?ArticleID=1201
http://www.chemicool...s/tungsten.html
http://www.azom.com/...?ArticleID=1262
http://www.tungstenc...oducts-631.html
http://www.adexmining.com/tungsten.php
http://www.hcrosscom...ry/tungsten.htm
https://s3.amazonaws...nt/ch04s04.html
http://www.kingislan...index.php?id=12
http://www.itia.info...plications.html
http://www.thefabric...r-aluminum-gtaw
http://www.itia.info...ter_12_2010.pdf
http://www.lookchem....Table/Tungsten/
http://www.goodecarb...com/news/48.htm
http://www.chinatung...f-Tungsten.html
http://minerals.usgs...sten/680400.pdf
http://tungsten-wolf...f-tungsten.html
http://www.elmettech...ducts/Tungsten/


Regards
Shivshankar