what are lubricants

Lubricants are substances that are used to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. They can be a fluid, solid, or plastic substance, and the property of reducing friction is known as lubricity. Lubricants are used in various applications, including industrial machinery, cooking, bioapplications on humans, ultrasound examination, medical examination, and sexual intercourse. There are different types of lubricants, including oil, grease, water-based, silicone-based, and natural options like olive oil. Lubricants can also have additives that enhance, add, or suppress properties. The benefits of using lubricants include reducing friction and wear, controlling temperature, power transmission, sealing against dust or dirt, reducing oxidation, and preventing corrosion.