Barium Titanate Micron Powder (BaTiO₃, 99.9%, 1 µm)
Technical Specifications:
- Chemical Formula: BaTiO₃
- Purity: 99.9% (high purity)
- Particle Size: 1 µm (microns)
- Appearance: White to off-white powder
- Density: Approximately 5.6 g/cm³
- Melting Point: 1,600°C (2,912°F)
- Boiling Point: Decomposes before boiling
- Molecular Weight: 233.19 g/mol
- Solubility: Insoluble in water
- Crystal Structure: Cubic at high temperatures, tetragonal at room temperature (ferroelectric phase)
- Dielectric Constant: High (around 1,000 at 1 MHz)
- Curie Temperature: ~120°C (This is the temperature at which Barium Titanate transitions between ferroelectric and paraelectric phases)
| Property | Value |
| Purity | 99.9% |
| Crystal Structure | Tetragonal |
| Average Particle Size (APS) | 1 µm |
| Specific Surface Area (SSA) | 3-5 m²/g |
| Appearance (Color) | White |
| True Density | 5.85 g/cm³ |
| Moisture Content (105°C, 2h) | 0.27 wt% |
| Ignition Loss (1100°C, 1h) | 1.31 wt% |
| Ba/Ti Ratio | 1.000 |
| Sodium (Na) | 0.001 wt% |
| Calcium (Ca) | 0.001 wt% |
| Iron (Fe) | 0.001 wt% |
| Potassium (K) | 0.001 wt% |
| Magnesium (Mg) | 0.001 wt% |
| Strontium (Sr) | 0.017 wt% |
Applications:
- Capacitors & Dielectrics:
- Barium Titanate is widely used in the manufacturing of capacitors, especially in applications requiring high dielectric constants. It serves as the core material in multi-layer ceramic capacitors (MLCCs), which are used in various electronic devices.
- Ferroelectric Materials:
- Barium Titanate exhibits ferroelectric properties, meaning it can retain an electrical polarization even in the absence of an external electric field. This characteristic makes it essential in the development of memory storage devices, non-volatile RAM, and other advanced electronic applications.
- Piezoelectric Devices:
- Due to its piezoelectric properties (ability to generate an electric charge in response to mechanical stress), Barium Titanate is used in ultrasonic transducers, microphones, actuators, and sensors.
- Sensors:
- Barium Titanate is used in various sensor applications, including temperature sensors, pressure sensors, and gas sensors due to its sensitivity to external stimuli and its piezoelectric nature.
- Electro-optic Devices:
- The material is employed in electro-optic devices such as light modulators and beam steering systems due to its high electro-optic coefficient, which allows for changes in optical properties under an electric field.
- Ferroelectric Ram (FeRAM):
- Barium Titanate is crucial for the development of Ferroelectric RAM (FeRAM), a type of non-volatile memory that is faster than flash memory and consumes less power. This technology is used in applications like RFID tags, medical devices, and embedded systems.
- Multilayer Ceramic Components:
- Barium Titanate is an integral part of multilayer ceramic components used in high-performance electronic devices. These components are common in mobile phones, automotive electronics, computers, and other consumer electronics.
- Lead-free Piezoelectric Actuators:
- In the search for environmentally friendly alternatives to lead-based piezoelectric materials, Barium Titanate is used in lead-free piezoelectric actuators and devices. These actuators are found in medical equipment, robotics, and automotive applications.
- Electric Insulators:
- Barium Titanate can serve as an electrical insulator in certain high-voltage applications. Its stability and resistance to high temperatures make it suitable for use in electrical insulators in power transmission and distribution equipment.
- Nonlinear Optics:
- Due to its high dielectric properties and ability to influence light, Barium Titanate is used in nonlinear optical applications, such as frequency converters, modulators, and other photonic devices that require the manipulation of light waves.
- Energy Harvesting Devices:
- Barium Titanate is used in energy harvesting technologies, particularly those based on piezoelectricity, where mechanical energy is converted into electrical energy. Applications include vibration energy harvesting systems and self-powered sensors.
- Dielectric Resonators:
- Barium Titanate is used in the manufacture of dielectric resonators used in microwave communication and radar systems. Its high permittivity and stability make it ideal for tuning circuits in these high-frequency applications.
Barium Titanate Micron Powder (BaTiO₃, 99.9%, 1 µm) is a versatile and important material in the fields of electronics, electrical engineering, and materials science, with a wide range of applications, particularly in energy storage, sensors, and actuators. Its high dielectric constant, piezoelectric, and ferroelectric properties make it an essential component in modern electronic devices and systems.
