Iridium-based spark plug. Spark plugs are devices used in combustion engines to provide sparks to ignite the fuel-air mixture when the engine is started. The spark is produced using a high voltage,which causes the air between the two electrodes to become ionised in a similar process to the formation of lightning. Here,the spark gap and tip is at lower right. This is an iridium spark plug from the Japanese NGK company. It has a laser-welded tip made of an alloy of the transition metal iridium (Ir). This durable alloy has a high melting point,ensuring that this spark plug has a longer lifetime than those using less durable materials | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3425 px × 5138 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |