What is the work function of Nichrome?

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Discussion Overview

The discussion centers around the work function of nichrome, exploring its variability based on surface cleanliness. Participants seek to clarify the specific values and conditions affecting the work function, with references to external sources and personal experiences in chemistry and electronics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants mention that the work function of nichrome ranges from 5 to 8 eV, depending on surface cleanliness.
  • One participant questions the implications of surface cleanliness, specifically inquiring about the effects of very clean nichrome wire.
  • There is a discussion about what constitutes 'chemically clean,' with references to washing with strong acids versus isopropanol.
  • Participants express uncertainty about the adequacy of various cleaning methods in achieving a 'chemically clean' state.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the exact work function values or the definitions of cleanliness, indicating multiple competing views and unresolved questions regarding the topic.

Contextual Notes

Limitations include the dependence on definitions of cleanliness and the variability of work function values based on surface conditions, which remain unresolved.

eigenmax
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Hello,
Does anyone know the work function of nichrome ? I can't seem to find it online.

Thanks,
 
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Hmmm. I found the following info, but I'm not sure it helps that much: http://lappddocs.uchicago.edu/documents/230/sendit
Depending on the cleanliness of the surface of the nichrome, work functions range from 5 to 8 eV.

Check the source to make sure it's what you actually need.
 
Drakkith said:
Hmmm. I found the following info, but I'm not sure it helps that much: http://lappddocs.uchicago.edu/documents/230/senditCheck the source to make sure it's what you actually need.
I had seen that but didn't notice what you pointed out. Any idea about very clean nichrome wire ?
Thanks.
 
Not sure, sorry.
 
eigenmax said:
Any idea about very clean nichrome wire ?
Not specifically, but 'chemically clean' often means washed with a strong acid, such as nitric.
 
Tom.G said:
Not specifically, but 'chemically clean' often means washed with a strong acid, such as nitric.
Hi,
Would washed with isopropanol and dry air count as clean ?
 
eigenmax said:
Would washed with isopropanol and dry air count as clean ?
It would help, but probably not qualify as 'chemically clean.' There are too many things that alcohols do not dissolve.

Hopefully someone else can jump in here with more detailed answers. I'm an electronics guy and chemistry is just random stuff I've picked up along the way.
 
Hello,
I'm the opposite to you then, with chemistry as my main area ! Anyway, thanks for your help, it's been very useful.
Thanks,
 
eigenmax said:
I had seen that but didn't notice what you pointed out. Any idea about very clean nichrome wire ?
Thanks.
The article says
The work function of Nichrome runs between 5.1 and 8 eV, depending on the cleanliness of the surface
 
  • #10
arydberg said:
The article says
The work function of Nichrome runs between 5.1 and 8 eV, depending on the cleanliness of the surface
Ok, thanks.
 

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