Register to reply

Intermetallics and solid solution

by kelvin490
Tags: intermetallics, solid, solution
Share this thread:
kelvin490
#1
Aug16-14, 08:03 AM
PF Gold
kelvin490's Avatar
P: 101
For some systems, discrete intermediate compounds rather than solid solutions may be found on the phase diagram, and these compounds have distinct chemical formulas; for metal–metal systems, they are called intermetallic compounds. e.g. Mg2Pb has 33 at% Pb

For binary isomorphous system like copper-nickel, if we get 33 at% Ni, can we say it is Cu2Ni? How to distinguish intermetallics from other solid solution with same ratio?
Phys.Org News Partner Engineering news on Phys.org
ESA investigates an alternative, environmental-friendly method of corrosion resistance
The oscillator that could makeover the mechanical watch
Engineers study bats to improve aviation travel
Astronuc
#2
Aug16-14, 07:06 PM
Admin
Astronuc's Avatar
P: 21,915
Quote Quote by kelvin490 View Post
For some systems, discrete intermediate compounds rather than solid solutions may be found on the phase diagram, and these compounds have distinct chemical formulas; for metal–metal systems, they are called intermetallic compounds. e.g. Mg2Pb has 33 at% Pb

For binary isomorphous system like copper-nickel, if we get 33 at% Ni, can we say it is Cu2Ni? How to distinguish intermetallics from other solid solution with same ratio?
Usually, if the crystal structure of the predominant element is unchanged, then it is considered a solid solution. Intermetallic compounds are often distinct or separate phases, with a different crystal lattice/structure, e.g., a bcc or fct phase in fcc or hcp lattice.

We may refer to second phase particles.


Register to reply

Related Discussions
Prediction of volume of solid-liquid solution Chemistry 7
Reactions in Solution, But Not In Solid Form? Biology, Chemistry & Other Homework 1
Solid solution phase diagram. Chemistry 0
Solution for this question in solid state Advanced Physics Homework 3
Dispersoids and intermetallics Materials & Chemical Engineering 1