How many materials are there for oven ignition electrodes

There are several materials used for oven ignition electrodes. The most common materials include:

Ceramic: Ceramic is a popular material for ignition electrodes because it is heat-resistant and can withstand high temperatures. It is also non-conductive, which helps to prevent electrical shocks.

Metal: Metal is often used for the electrode tip because it is a good conductor of electricity and can produce a strong spark. Stainless steel is a common material for electrode tips because it is durable and corrosion-resistant.

Platinum: Platinum is a highly conductive metal that is sometimes used for ignition electrodes because it can produce a strong and consistent spark. However, it is a more expensive material and is not as commonly used as ceramic or metal.

Porcelain: Porcelain is a type of ceramic that is often used for electrode insulators because it is highly heat-resistant and can withstand thermal shock.