What role does physics play in materials science?

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Discussion Overview

The discussion revolves around the role of physics in materials science, specifically the types of physics knowledge required for work in this field. Participants explore the relevance of various physics concepts, including both basic and advanced topics, in theoretical, computational, and experimental materials science.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the necessity of advanced physics topics such as quantum mechanics and statistical physics in materials science, suggesting that knowledge related to materials characteristics may be more relevant.
  • Another participant recommends consulting solid state physics textbooks, indicating that quantum mechanics is fundamentally applied in materials science, particularly through concepts like the Bloch wavefunction.
  • It is noted that solid state physics serves as a theoretical foundation for materials science, with computational approaches like density functional theory being highlighted as important techniques.
  • Thermodynamics and statistical mechanics are mentioned as essential for studying materials under phase transitions and extreme conditions, while elasticity theory and continuum mechanics are relevant for understanding defects in mechanical properties.
  • Electromagnetics is identified as necessary for those working with ferroelectric and magnetic materials.
  • For studies involving water/semiconductor or water/metal interfaces, knowledge of electrochemistry and liquid state physics is suggested as important.
  • Amorphous metal oxides may require a comprehensive understanding of all the aforementioned areas.

Areas of Agreement / Disagreement

Participants express differing views on the importance of advanced physics topics in materials science, with some emphasizing their relevance while others suggest a focus on more practical material characteristics. The discussion remains unresolved regarding the extent of physics knowledge required.

Contextual Notes

Participants reference various physics concepts and their applications without reaching a consensus on which are most critical for materials science. The discussion reflects a range of experiences and perspectives on the topic.

assed
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Hello.
I would like to hear of somebody with experience in the area of materials science (theoretical/computational or experimental) the answer to the following question: What kind of Physics knowledge one must have to work in this area. I mean, how much of the basic Physics stuff you must know and how do you use it in your work. I have been asking myself this because to me it looks like none of the advanced stuff (like quantum mechanics, advanced electromagnetism, statistical physics, solid state, etc) is really used in the area and what trully matters is knowing the things only related to materials characteristics, things that I think are more common that a chemist would know. Since I don't know anyone who works in the field, I asked here.
Thanks in advance.
 
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assed said:
Hello.
I would like to hear of somebody with experience in the area of materials science (theoretical/computational or experimental) the answer to the following question: What kind of Physics knowledge one must have to work in this area. I mean, how much of the basic Physics stuff you must know and how do you use it in your work. I have been asking myself this because to me it looks like none of the advanced stuff (like quantum mechanics, advanced electromagnetism, statistical physics, solid state, etc) is really used in the area and what trully matters is knowing the things only related to materials characteristics, things that I think are more common that a chemist would know. Since I don't know anyone who works in the field, I asked here.
Thanks in advance.

I would suggest you open a solid state textbook, such as the one by Kittel or Ashcroft/Mermin. After you get through the free-electron/Drude model, practically everything else is the application of quantum mechanics! Just look at the Bloch wavefunction for starters.

Zz.
 
Solid state physics is the theoretical basis for materials science. For computational materials science you might want to look into techniques like density functional theory.
 
Thermodynamics and statistical mechanics are needed whenever you study materials that undergo phase transitions, or high temperatures/pressures are important
Elasticity theory and continuum mechanics are needed when studying the impact of defects on the mechanical properties.

Electromagnetics is necessary for those work in ferroelectric and magentic materials.

As mentioned above solid state physics/ Density functional theory are needed whenever you study crystalline solids.

If you plan to study water/semiconductor or water/metal interfaces then a bit of electrochemistry and liquid state physics are needed.

If you study amorphous metal oxides then you may need all the above :biggrin:
 

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