Low Temperature Plasma: Limits & Possibilities

The strength of the atomic bonds and the ability to hold electrons also play a role in determining the lowest temperature at which plasma can be created. This can vary depending on the element or molecule being used.
  • #1
Edi
177
1
What is the lowest temperature plasma we can make? What substance is it.. what is the temperature it becomes a plasma (ions brake loose (?)) ? And what is the theoretical minimum - or even is there a limit?
From what I know it depends on how strong the bounds are and how well the electrons are held.. but for a super heavy not-yet-made element where there is enormous amount of electrons - the upper ones would be held weaker and weaker as the atom increases in proton number/ size. Or maybe not even atoms alone, but molecular groups.. they can share and hold electrons in a weird way..
 
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  • #2
The lowest temperature at which plasma can be created is about 10,000 Kelvin. This temperature is usually associated with hydrogen gas and is the temperature at which the electrons become ionized and break free from the nucleus. In theory, there is no limit to how cold plasma can become, but it is difficult to maintain a stable plasma at very low temperatures.
 

1. What is low temperature plasma?

Low temperature plasma is a state of matter that occurs when a gas is partially or fully ionized, creating a high energy and reactive environment. This plasma is characterized by a relatively low temperature, typically around 1000-10,000 K, compared to other forms of plasma which can reach millions of degrees.

2. What are the limits of low temperature plasma?

The limits of low temperature plasma are dependent on the specific parameters and conditions of the plasma, such as the type of gas, pressure, and power input. In general, low temperature plasma cannot reach temperatures as high as other forms of plasma, and it also has limitations in terms of its ability to achieve certain chemical reactions or process certain materials.

3. What are the potential applications of low temperature plasma?

Low temperature plasma has a wide range of potential applications, including surface modification, material synthesis, and environmental remediation. It can also be used in industries such as healthcare, electronics, and agriculture. Some specific examples include plasma-based sterilization, plasma-enhanced chemical vapor deposition, and plasma etching in microelectronics.

4. How is low temperature plasma generated?

Low temperature plasma can be generated using various methods, including electrical discharges, microwave radiation, and laser ablation. The specific method used depends on the desired parameters and conditions of the plasma. For example, electrical discharges are commonly used for industrial applications, while microwave radiation is often used in research settings.

5. What are the safety considerations when working with low temperature plasma?

Working with low temperature plasma requires careful consideration of safety precautions. While the temperature is relatively low, the high energy and reactive nature of the plasma can still pose hazards. Proper protective equipment, such as gloves and goggles, should be worn when handling plasma. It is also important to carefully control the parameters and conditions of the plasma to prevent potential accidents or damage to equipment.

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