Talk:Dislocation

There are some rather nice pictures here - thanks Wikityke. I have made a small start in adding a formal disscussion of the terms Burgers vector, dislocation line, slip plane etc. but as yet have not converted my pictures used to define them to a form sutible for uploadin. The basic approach I propose to follow goes something like:

1. You can discribe a edge dislocation as the termination of an extra half plane.
2. This is not a useful discription because many planes could terminate to form identical dislocations.
3. Then it is possible to construct a loop around the end of the plane - this has one side that is not the same length as that found in a perfect crystal. The missmach is called the Burgers vector.
4. We call the thing we go round a dislocation line - the two vectores are perpendicular in an edge dislocation.
5. The plane containing both vectors is termed the slip plane.
6. If the two vectors are paralell we have a screw dislocation, or we could have a mixed dislocation.
7. The Burgers vector has to be coincedent with a lattice vector or the crystal wont match up.

Or thats the plan - I have the pictures but will not be able to upload them until next week... Andreww 19:37, 2 Jan 2005 (UTC)

regarding the new (dislocations in silicon) photo's: Would it be more correct to say that the photo' shows etch pits in silicon, resulting from the preferential attack of the highly strained lattice regions around the dislocation core? A magnification of 500x seems extremely low to be showing the dislocations themselves. Wikityke 20:37, 17 September 2005 (UTC)

Unencyclopedic content

I've reverted the last revert of by Lion Roller (talk · contribs) and placed a note on his talk page so he understands what the problem is. --Pablo D. Flores (Talk) 20:50, 16 December 2005 (UTC)

I am astonished

Dear Pablo Florens, Dear JHMM13,

Many thanks for yor messages. I have some queries. Why MathTex is recommended for Wikipedia, but it turned out not to be right? Is Wikipedia open for editing? Is it properly to delete new contrubutions half-way in a free and easy manner? "Wikipedia is not a clasroom" (JHMM13) - is polite? Indeed, can students and linguists correct a professor physicist?

Sincerely yours

Lion Roller

I'll only say this: if you insert some content, and someone removes it citing a reason, then you shouldn't put the content back. Rather come here to the talk page and discuss with the one(s) who took your content out. You can even post the content here in the talk page, as a proposal. Wikipedia articles should read like encyclopedic entries, not as a professor talking to students. Check the Manual of Style, What Wikipedia is not, etc. I'm not trying to correct your content but its format, anyway (not being a physicist, I barely understand what it's being talked about, really). Work with the experts here and try to get a suitable encyclopedic version to put into the article. --Pablo D. Flores (Talk) 13:29, 17 December 2005 (UTC)