Demystifying special properties: piezoelectric, dielectric and thermoelectric.
In nature, many substances possess unique properties that make them valuable for a wide range of applications in many fields. Today, we will ** three special properties, which are piezoelectric, dielectric and thermoelectric. These special properties make these substances play an important role in electronics, energy, medicine, chemistry and other fields.
1. Piezoelectricity.
Piezoelectricity refers to the property of a substance that produces an electric dipole under the action of mechanical pressure. When subjected to mechanical pressure, this material generates opposite charges on both surfaces. This property makes piezoelectric materials play an important role in many electronic devices, such as ultrasonic transducers, pressure sensors, microphones, etc. In addition, piezoelectric materials can be used to make energy harvesters that convert mechanical vibrations into electrical energy.
2. Dielectric.
Dielectric means that a substance is able to maintain its electrical neutrality in an electric field while enhancing the force of the electric field. This property makes these materials used in electronic devices to make capacitors, such as memory capacitors on circuit boards. In addition, dielectric materials also have a wide range of applications in the field of wireless communication, such as antennas, filters, etc.
3. Thermoelectric.
Thermoelectricity refers to the property of a substance that is able to produce a voltage under the action of thermal energy. This material can convert heat energy into electrical energy, so it can be used to make thermoelectric power generation materials. This material has a wide range of applications in environments with large fluctuations in ambient temperature. In addition, thermoelectric materials can also be used in the field of sensing to detect temperature changes.
Summary. Piezoelectric, dielectric and thermoelectric properties are three special properties that make these substances play an important role in electronics, energy, medicine, chemistry and other fields. With the development of science and technology, these special properties of substances will be used in more fields, bringing more convenience and possibilities to our lives.
Of course, there is nothing mysterious about these substances with special properties, and they can be found everywhere in everyday life. For example, quartz in crystals is piezoelectric, while dust in the air is dielectric. As for thermoelectricity, metals such as copper and antimony are common thermoelectric materials. As long as we pay a little attention, we will find that these substances with special properties are all around us.
In the future, with the continuous progress of science and technology, we expect these special properties of substances to bring more surprises and changes to human society. At the same time, we also hope that scientists can discover more substances with special properties, providing more possibilities for human scientific and technological progress.