Piezoelectric Smart Materials: Introduction
- Piezoelectric materials are considered smart materials, as these materials can transduce the mechanical pressure acting on it to the electrical signals (called direct piezoelectric effect) and electrical signals to mechanical signals (called converse piezoelectric effect). The basic requirement of material to exhibit piezoelectricity depends on its crystal lattice structure and the lack of a center of symmetry.
- Piezoelectric smart materials are used in a wide range of electronic applications such as transducers, actuators and sensors. Piezoelectric materials are also extensively employed in tissue engineering as electroactive scaffolds for tissue repair and regeneration. They can deliver variable electrical stimulus without an external power source. The electrical stimulation resulting from piezoelectric scaffold can regenerate and repair tissues by definite pathways. Piezoelectric scaffolds with optimized properties can produce suitable bioelectrical signals, similar to the natural extracellular matrix (ECM), which is observed during the remodeling phenomenon in bone and cartilage.
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Key Drivers and Restraints of Piezoelectric Smart Materials Market
- Piezoelectric smart materials are majorly used in sensors and actuators. Demand for piezoelectric smart materials is rising in the health care industry owing to their alluring properties. Increase in usage of piezoelectric smart materials to design medical devices and provide greater understanding of the piezoelectric effect in the medical industry is driving the market. Piezoelectric smart materials such as sensors and actuators are used in medical devices that can transform the flow rate and pressure to generate or consume energy. This is expected to drive the global piezoelectric smart materials market during the forecast period.
- Rise in demand for piezoelectric smart materials in the aerospace defense industry is expected to create significant opportunities for the piezoelectric smart materials market in the near future. In the aerospace sector, piezoelectric smart materials help guide and maintain air flow across aircraft wings during take-off and landing. Additionally, they are widely used as smart sensors, smart combat suits, smart nano-robotics, and smart skins in the military defense sector. These materials are also known to resolve common aircraft complications, such as engine vibration, wing ice formation, high cabin noise levels, and turbulence separation in cold conditions.
Piezoelectric Smart Materials: Type Segment
- In terms of type, the global piezoelectric smart materials market can be divided into ceramics, polymers, composites, and crystals
- The polymers segment is projected to hold major share of the global piezoelectric smart materials market during the forecast period. Polyvinylidene fluoride (PVDF) and pure thermoplastic fluoropolymers are generally the selected materials among piezoelectric smart materials due to their low cost, highly non-reactive properties, pressure super-sensitivity, and compliance with government regulations such as hazardous substance restriction for materials.
- The composites segment is projected to follow the polymers segment during the forecast period. The composite type of piezoelectric smart materials possesses various advantages such as high coupling factor, low acoustic impedance, strong water or human tissue matching, mechanical stability, and wide bandwidth. Thus, they are widely used in many end-use industries such as health care, aerospace defense, electronics, and automotive.
Piezoelectric Smart Materials: Application Segment
- Based on application, the global piezoelectric smart materials market can be segmented into motors, sensors, transducers, actuators, transformers, fuel injectors, and others
- The sensors segment is projected to gain higher share of the global market during the forecast period. Piezoelectric sensor is a device that uses the piezoelectric effect to monitor changes in friction, acceleration, temperature, strain or force by converting them to an electric charge. Industrial sector employs piezoelectric sensors for a number of uses such as pressure sensors and sonar equipment. Also, sensor has a high-power density that enables large amounts of acoustic power to be transmitted from a small package. Additionally, increase in usage of piezoelectric sensor in medical applications is projected to boost the global piezoelectric smart materials market in the next few years.
- The actuators segment is projected to hold key share of the global piezoelectric smart materials market in the near future. Actuators are largely used in the aerospace defense industry.