You’ll have definitely learned about three states of matter at school: solids, liquids and gases. But now scientists recognise a fourth state known as plasma. Plasma is a lot more common than you’d think, and makes up much of the visible universe – even the stars we see at night.
Understanding plasma and how it forms
A state of matter is basically how we explain how particles behave under different conditions, like changing temperature and pressure. When energy is added to a solid, it melts into a liquid, and with more energy it becomes a gas. If even more energy is introduced, the gas becomes ionised. This means electrons separate from atoms, creating a mixture of charged particles that behave differently from ordinary gases. This energetic, electrically conductive mixture is plasma.
Plasma and its use in industrial settings
Even though plasma exists in space, it can be created here on earth. And because it contains highly reactive particles, plasma interacts strongly with surfaces and materials, making it really useful for a lot of our industries.
Plasma can be used as a thermal plasma spray to alter surface characteristics, improve adhesion, or apply specialised coatings. This is especially useful for industries from electronics manufacturing to aerospace engineering, where precision surface treatment is important. Businesses offering these services, such as //www.poeton.co.uk/surface-treatments/thermal-metal-sprays/plasma-coatings/, show how plasma technology is applied in real-world manufacturing environments.
So, rather than just being a rare phenomenon in space, plasma represents a fundamental state that shapes both the universe and many advanced technologies used today.
