Plasma (from Ancient Greek πλάσμα (plásma) 'moldable substance' [1]) is one of four fundamental states of matter (the other three being solid, liquid, and gas) characterized by the presence of a significant portion of charged particles in any combination of ions or electrons.

The Department of Energy (DOE) Office of Science supports research into plasma through its Fusion Energy Sciences and Nuclear Physics programs. DOE-funded research on plasma has also improved the manufacturing of the semiconductors found in everything from phones and computers to cars.

2024年5月22日 · Plasma, making up 99% of the visible universe, exists predominantly in stars and space. It forms when electrons detach from atoms, creating ions and free electrons, a state that can conduct electricity and exhibits complex behaviors. What Is Plasma? Plasma is one of the four fundamental states of matter, alongside gases, liquids, and solids.

To make plasma, energy is needed to strip electrons from atoms. The energy can be of various forms – heat, electrical or light (ultraviolet light or intense visible light from a laser). With insufficient sustaining power, plasmas recombine into neutral gas.

2025年1月26日 · plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized. It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous states.

Plasma is often called “the fourth state of matter,” along with solid, liquid and gas. Just as a liquid will boil, changing into a gas when energy is added, heating a gas will form a plasma – a soup of positively charged particles (ions) and negatively charged particles (electrons).

2018年4月27日 · Plasma energy is produced when fusion takes place in a controlled and magnetized environment. Plasma is the fourth state of matter, a gas in which a sufficient amount of energy is present to enable ions and electrons to coexist.

Plasma, one of the four fundamental states of matter, consists of a gas of ions and free electrons. A burning plasma is one in which most of the plasma heating comes from fusion involving thermal plasma ions. In the Sun, that fusion involves hydrogen ions.

Plasma is the 4th state of matter. It is composed of mostly ionized particles and is often viewed as a gas, however exhibits various properties different to that of a typical gas.

It is this super-heated mixture of electrons and ions that we call “plasma”. This state of matter is ionized as at least one electron has been stripped from the nucleus. Matter is only considered to be a plasma when a certain amount of all the atoms are ionized.