Does the APF depend on the temperature

  • Thread starter Thread starter Dell
  • Start date Start date
  • Tags Tags
    Temperature
AI Thread Summary
The atomic packing factor (APF) does depend on temperature, as changes in temperature can lead to alterations in the crystal structure and atomic volume of materials. While the discussion highlights that this is particularly evident in metals, it also notes that nonmetals can experience similar changes, such as in the case of diamond and graphite. The APF is defined as the ratio of the volume occupied by atoms to the total volume of the unit cell, which can vary with temperature due to thermal expansion or contraction. Although the APF may not directly depend on the lattice constant, it is influenced by changes in crystal structure. Overall, the consensus is that temperature can affect the APF across various materials, not just metals.
Dell
Messages
555
Reaction score
0
does the APF depend on the temperature
a) yes
b) no
c) only for metals
d) only for ceramics

i know that for iron for example the bravias lattice can change at different temperatures, but does the atomic packing factor also, i would think yes, but is this true for all materials or just metals?
 
Physics news on Phys.org
How is the APF defined? What characteristics of a material does it incorporate? Could these characteristics change slowly (or hint: suddenly) with temperature?
 
i would think so, if it is the volume of the atoms/ volume of the cube, and the lattice changes i would think that the APF would too, but i know this can happen in metals, but is it true for all materials or only metals
 
I don't believe the APF depends on the lattice constant, but I agree that it will change with crystal structure. And yes, crystal structure changes are possible with nonmetals also (e.g., diamond/graphite).
 
how about expansion and contraction due to temperature changes?!
 
Well, what's the APF for a hexagonal close-packed structure, for example? Does it depend on temperature, as long as the crystal arrangement is unchanged?
 

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »

Similar threads

Chemistry How Does Doubling Zinc Mass Affect Temperature Change in ZnO Formation?
Replies
3
Views
3K
Chemistry Does Combusting Different Amounts of Propane Change Final Temperature?
Replies
5
Views
2K
Chemistry How does this example of electroplating tungsten onto base metal work?
Replies
5
Views
1K
I Constant length metallic wire as a thermometer, using tension?
Replies
1
Views
1K
Does Resistance change wrt temperature include effect of size change
Replies
5
Views
2K
I How to measure average thermal conductivity of a metallic material?
Replies
1
Views
2K
Engineering Effects of different starting Temperatures on sulfuric acid dilution
Replies
0
Views
2K
Total Emissivity as a Function of Temperature (Ceramics)
Replies
2
Views
2K
I The effect of temperature on the damping of a guitar string
Replies
1
Views
1K
What does "limit of zero pressure" mean for ideal gas temperature?
Replies
14
Views
3K

Hot Threads

Recent Insights

Back
Top