Podcast
Questions and Answers
What is the primary outcome of increasing milling time in mechanical alloying?
What is the primary outcome of increasing milling time in mechanical alloying?
- Formation of impurities from the erosion of the balls
- Production of composite materials
- Creation of a single bcc phase (correct)
- Formation of metastable phases
What is the main disadvantage of electrolytic fabrication technique for producing metal powders?
What is the main disadvantage of electrolytic fabrication technique for producing metal powders?
- Inability to adjust particle size and shape
- Low purity of the produced powders
- High production costs (correct)
- Limited to pure metals only
Which phase is formed due to repeated impact and cold welding in ball milling?
Which phase is formed due to repeated impact and cold welding in ball milling?
- Face-centered cubic (fcc) phase
- Body-centered cubic (bcc) phase (correct)
- Metastable phase
- Hexagonal close-packed (hcp) phase
Which metal is not suitable for production using the electrolytic fabrication technique?
Which metal is not suitable for production using the electrolytic fabrication technique?
Which process is crucial for producing composite materials via mechanical alloying?
Which process is crucial for producing composite materials via mechanical alloying?
What is the primary issue with powders produced via ball milling?
What is the primary issue with powders produced via ball milling?
What is the main difference between gas jet milling and atomization, according to the text?
What is the main difference between gas jet milling and atomization, according to the text?
Which powder fabrication technique is known to have very high production rates?
Which powder fabrication technique is known to have very high production rates?
In terms of purity, which method stands out for its high purity levels?
In terms of purity, which method stands out for its high purity levels?
Which powder fabrication method allows for a wide range of particle shapes?
Which powder fabrication method allows for a wide range of particle shapes?
What distinguishes gas jet milling from atomization regarding the state of the metal used?
What distinguishes gas jet milling from atomization regarding the state of the metal used?
Which powder fabrication method is described as versatile for several materials fabrication?
Which powder fabrication method is described as versatile for several materials fabrication?
What is the main purpose of ball milling in the context of powder formation?
What is the main purpose of ball milling in the context of powder formation?
How does impact stress vary with particle size during milling?
How does impact stress vary with particle size during milling?
Why are nanomaterials considered metastable?
Why are nanomaterials considered metastable?
In powder metallurgy, what is the significance of mechanical alloying?
In powder metallurgy, what is the significance of mechanical alloying?
What effect does decreasing particle size have on impact stress during milling?
What effect does decreasing particle size have on impact stress during milling?
Why are metallic glasses considered metastable phases in materials science?
Why are metallic glasses considered metastable phases in materials science?
