Can High Pressure Create Diamonds in Nature?

  • Thread starter Thread starter bobsmith76
  • Start date Start date
  • Tags Tags
    Diamond
AI Thread Summary
Diamond formation occurs under extreme conditions, primarily high pressure and temperature, which facilitate the arrangement of carbon atoms into a tightly packed crystal structure. In nature, diamonds are typically found in kimberlite pipes, which are formed by volcanic activity that brings carbon from deep within the Earth to the surface. The immense pressure within these pipes is crucial for diamond formation. Synthetic diamonds can be created through methods that replicate these natural conditions, such as High Pressure High Temperature (HPHT) processes or Chemical Vapor Deposition (CVD), both of which allow for the controlled arrangement of carbon atoms into diamond structures. The discussion highlights the contrast between diamond and graphite, emphasizing that the structural differences arise from the varying conditions under which carbon is subjected.
bobsmith76
Messages
336
Reaction score
0
Ok, I understand the difference between diamond and graphite but how is it that diamond actually forms? Why is that carbon forms one way at one time and a different way at another time? My best guess is that you have to subject the carbon to enormous pressure because it looks like diamonds atoms are closer together and pressure is the only way i can think of to get them together.
 
Chemistry news on Phys.org
In nature diamonds are produced in a kimberlite pipes (kind of a volcano). Yes, that means very high pressures. Synthetic diamonds are made using either high pressures or so called Chemical Vapor Deposition method.

Compare this thread.
 

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Thread 'Why does having 8 valence electrons make an element inert?'

I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
View full post »

Thread 'Resists for etching Aluminium with NaOH'

I'm trying to find a cheap DIY method to etch holes of various shapes through 0.3mm Aluminium sheet using 5-10% Sodium Hydroxide. The idea is to apply a resist to the Aluminium then selectively ablate it off using a diode laser cutter and then dissolve away the Aluminium using Sodium Hydroxide. By cheap I mean resists costing say £20 in small quantities. The Internet has suggested various resists to try including... Enamel paint (only survived seconds in the NaOH!) Acrylic paint (only...
View full post »

Similar threads

Standard enthelpies of formation of carbon nanotubes etc.
Replies
2
Views
2K
I Melting point of graphite and diamond?
Replies
3
Views
4K
I Why Do Different Primitive Unit Cells for Diamond Look So Different?
Replies
2
Views
7K
B Trace methane in Uranus and Neptune, condensing into diamonds
Replies
2
Views
2K
Carbon 14 Volatility: Ease of Dislodging from Graphite & Diamond
Replies
1
Views
2K
B Can frame dragging do this?
Replies
1
Views
129
Residential concrete densifier and sealer?
Replies
8
Views
2K
Diamond vs. glass -- thermal properties
Replies
2
Views
3K
B Why don't solids always stick together?
Replies
5
Views
4K
Bonding of Diamond: Unreactivity & Impurity
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top