Sciencemadness Discussion Board

PDF dump!

Camroc37 - 19-10-2016 at 20:03

It seems that PDF files are not super common here, at least that's what I've experienced on this site as of now. And what would a fun Saturday morning be if not for a gallon of coffee and hundreds of PDFs to sift through?

I've created this thread for anyone and everyone to dump PDF files on anything Chemistry related at all. Please give a short description if the file name isn't obvious. I'll start with all that I have so far from SM, please add on!
These all happen to pertain to energetics, but add anything you feel like adding.
(I keep having an upload problem, will have to slowly add files)

Attachment: Detonability of Ammonium Nitrate and Mixtures on Its Base .pdf (263kB)
This file has been downloaded 433 times

Attachment: Detonation_properties_of_ammonium_based_explosives.pdf (400kB)
This file has been downloaded 544 times

Attachment: Electroforming Copper Liners.pdf (281kB)
This file has been downloaded 464 times

[Edited on 20-10-2016 by Camroc37]

Attachment: Hydrazinium Azide Compounds.pdf (151kB)
This file has been downloaded 437 times

[Edited on 20-10-2016 by Camroc37]

Attachment: Hydrazinium Azide Hydrazinate.pdf (85kB)
This file has been downloaded 484 times

Camroc37 - 19-10-2016 at 20:12

More
(Zygmunt is about AN and Al)

[Edited on 20-10-2016 by Camroc37]

Attachment: Synthesis of 4-amino-2,6-dinitrophenol (isopicramic acid) and p-DDNP from acetaminophen version 1 .pdf (3.2MB)
This file has been downloaded 486 times

Attachment: THE CHEMISTRY OF COPPER PLATING.pdf (192kB)
This file has been downloaded 814 times

Attachment: Zygmunt.pdf (400kB)
This file has been downloaded 412 times

j_sum1 - 19-10-2016 at 20:35

At the risk of putting a wet blanket on a wonderful information sharing sentiment...
We do have a library here. There is a References section which you can ask to have access to. (I really should do that.)

Also, stuff when it is posted in relevant threads tends to automatically have some contextual organisation. By the time this thread contains a few thousand unsorted pdfs it will be sufficiently bloated as to be non-functional. That gets us back to searching -- which is what we do now.

Camroc37 - 19-10-2016 at 20:43

Quote: Originally posted by j_sum1  
At the risk of putting a wet blanket on a wonderful information sharing sentiment...
We do have a library here. There is a References section which you can ask to have access to. (I really should do that.)

Also, stuff when it is posted in relevant threads tends to automatically have some contextual organisation. By the time this thread contains a few thousand unsorted pdfs it will be sufficiently bloated as to be non-functional. That gets us back to searching -- which is what we do now.

Well I tried ¯\_(ツ)_/¯
Thanks, who do I ask?

[Edited on 20-10-2016 by Camroc37]

j_sum1 - 19-10-2016 at 20:57

From the opening page...
https://www.sciencemadness.org/whisper/

Ask woelen or Polverone for access to references.


And the library is here. http://library.sciencemadness.org/library/index.html
And don't forget the wiki. http://www.sciencemadness.org/smwiki/index.php/Main_Page

There are a bunch of ways to share. But the best of all IMO is active online discussion in threads where users contribute their best resources (pdf or otherwise) to those who ask good questions and anyone else following. I am sure I have downloaded hundreds that I have not fully read yet. Papers and patents and procedures and pictures and references and textbooks and all kinds of things. (My alliteration gave out after #4)

BTW, there is a nice thread somewhere where someone made beautiful cone-shaped copper liners by electrolysis.

vmelkon - 20-10-2016 at 16:03

What's a copper liner?
Your power source is a weird one. Maybe it has some fancy electronics in it and it changes the voltage.
I recommend a computer power supply or car battery charger.


It is pretty nice. I would use this method to plate iron.

Camroc37 - 20-10-2016 at 16:08

Quote: Originally posted by vmelkon  
What's a copper liner?
Your power source is a weird one. Maybe it has some fancy electronics in it and it changes the voltage.
I recommend a computer power supply or car battery charger.


It is pretty nice. I would use this method to plate iron.

I did not write any on these files, simply downloaded them and reposted them here.
A copper liner is used in linear shaped charges and act similarly to a bullet. The only difference is that the explosive charge melts the copper cone and pushes it into the shape of a bullet. You'll see the same sized liners from the PDF penetrate several inches of solid steel and continue into the ground.

careysub - 20-10-2016 at 16:27

Quote: Originally posted by Camroc37  

...
A copper liner is used in linear shaped charges and act similarly to a bullet. The only difference is that the explosive charge melts the copper cone and pushes it into the shape of a bullet. You'll see the same sized liners from the PDF penetrate several inches of solid steel and continue into the ground.


Shaped charges do not melt the liner, which remains solid. Instead intense pressure causes it to flow, forming the "jet" which is in effect an explosively formed long rod penetrator. There is also a roughly bullet shaped slug formed, which makes no contribution to armor penetration, but is a significant projectile in its own right.

Shaped charges overlap with (and can be considered sub-types of) explosively formed projectiles (EFPs) which can create a wide variety of EFP shapes depending on design. These can be thought of as optimized slug generators.