Lead Zirconate Titanate Nano Powder - A Piezoelectric Material

PZT (lead zirconate titanate) is a piezoelectric ceramic material with a crystalline perovskite structure which is commonly used in high temperature and sensitivity applications. PZT-based piezoceramics excite attention since they offer excellent piezoelectric properties to design different sensors and actuators.

Characteristics of lead zirconate titanate nano powders/micron powders:

Wide range of frequencies transmitted and received (sub-audible, audible, ultrasonic)
High performance, low drive material
High frequency, quick response time
High sensitivity for active or passive use
Ability to use low-voltage or high-voltage drive circuits
Good mechanical and acoustic coupling
Wide range of shapes and sizes that can be customized to specific requirements and applications
Wide range of compositions that can be selected to meet specific requirements and applications.

PZT is a machinable ceramic that can be precisely dimensioned into tubes, rings, disks, plates and hemispheres. The material is also versatile from a forming aspect as it can be net shaped by pressing, extruding and casting into the same shapes as well as complex components including co-fired bimorphs and multilayer actuators. Sizes vary from centimeters to microns to nanometers. Electrode choices include nickel-chrome, gold, tin, aluminum and vanadium fired silver, electroless nickel, sputtered or deposited vacuum.

The attributes of lead zirconate titanate nano particles to produce an electrical charge when mechanically compressed or vibrating when applied with an electrical charge make it very conducive to passive sensing. PZT materials, and piezoelectric materials in general, present a unique range of properties. Simply, if a piezoelectric material is deformed, an electric charge is generated in what is known as the piezoelectric effect. Hence, this material could be the solution to the “limited battery life” problem of the modern low-power devices like embedded structural health monitoring (SHM) system and microelectromechanical systems (MEMSs) where the replacement of the old battery is very costly or even impossible sometimes under some specific conditions.

Lead zirconate titanate (PZT) nano powders can be used in;

Medical products (Doppler blood flow, oncology therapy (high intensity ultrasound focused), imaging, level sensing, intraoperative ophthalmology tools (phacoemulsification), dental decaling, general surgery, tissue ablation, delivery of medication, hearing improvement, bubble detection)
Undersea exploration (sonar, beacons, imaging, current meters)
Aerospace (gyroscopes, accelerometers, level sensing)
Consumer products (ultrasonic toothbrushes, jewelry cleaners, contact lens cleaners, hard drives for computers, touch screens, integrated, ultra-thin speakers and cosmetic enhancement)
Industrial and commercial (flow and level sensors, ultrasonic cleaning, ultrasonic welding, intrusion alarms, positioning of fabric needles, soldering, machine vibration monitoring, bubble detection, sonochemistry for improved chemical mixing)
Telecommunications (optical switching of telecom lines, buzzers and alarms, Haptics feedback, cell phone cameras)
Automotive (power seat controls, reversal / collision avoidance sensors, anti-knock sensors)
Scientific research (nano-positioning and analytical tools, microscopy scanning, advanced acoustics)
Oil exploration (flow and level sensors, down hole monitoring of drilling tools).

New Way of Deaf-Mute Communication with 3D Graphene

Image retrieved from: http://blogs.rsc.org/cc/2016/09/01/3d-graphene-adds-dimension-to-deaf%E2%80%93mute-communication/ Chinese scientists have developed wearable electronic device with conductive 3D graphene structure to translate sign language into written text. This technology can be applied by injecting graphene ink from a syringe under printed electronic field. For medical field, such as adhesive patches which determine heart, brain signal and neural activity, wearable and bio-integrated medical devices are very important. Due to noticeable properties of cast graphene, for example a 2D honeycomb lattice, excellent mechanical and electrical behaviors, Graphene has an important material in warble technology. However, it is difficult to preserve advantages of Graphene material in a 3D material which has an information about forces from every angle. Yanlin Song and co-workers at the University of the Chinese Academy of Sciences, Beijing, and Shenyang Jianzhu University...

Titanium Carbide Powders and Applications

Titanium carbide which has the chemical formula of TiC attracted great interest for many structural applications due to its extremely high melting temperature, high hardness, high chemical resistance and good electrical conductivity. Therefore titanium carbide can be used in cutting tools, grinding wheels, wear-resistant coatings, high temperature heat exchangers, magnetic recording heads, turbine engine seals, and bullet-proof vests, etc. In addition, a promising field of application comprises plasma and flame spraying processes in air, where titanium carbide-based powders show high-phase stability. TiC(Titanium Carbide Powder) (325 mesh, 99,9+%) can also be used in biomedical implant devices. Materials used for biomedical implant devices must satisfy a variety of property demands, which are often mutually exclusive. Further, different parts of a device demand different material properties. These factors often make it difficult to manufacture a medical device using a...

Carbon Nanotubes Doped with Graphene Nanopowder and Applications

Carbon nanotubes and graphene are different forms of carbon atom based materials. They have different properties and can be used in various applications. But what happens if we use them as a hybrid structure? The excellent mechanical, physical, and chemical properties of low-dimensional carbon materials like graphene and carbon nanotube have enabled them as promising building blocks for three-dimensional nanoarchitectures. In this regard, extensive interests have been attracted to synthesize graphene and carbon nanotube hybrid structures. Earlier works suggested that Carbon Nanotubes Doped with Graphene Nanopowder (52 wt% Graphene ) is a promising solution for quick energy dissipation, which could enhance interface thermal conductivity of the ‘building blocks’ for future nanoscale mechanical and electrical devices. In the electricity perspective, it is found that ‘CNT pillared-graphene’ system would extend the excellent electrical conductivity of graphene and nanotube to ...

Nanografi Nanotechnology

Search This Blog