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Product Description
Product Introduction
Strontium Titanate (SrTiO₃) is a high-dielectric ceramic material with exceptional electrical insulation and thermal stability, making it a valuable additive or coating component in advanced electrical cable systems. Known for its perovskite structure and high relative permittivity (εr), SrTiO₃ improves the dielectric strength, energy storage capability, and heat resistance of cable insulation materials used in high-frequency, high-voltage, and precision signal transmission applications.
When incorporated into cable insulation layers, fillers, or composite coatings, SrTiO₃ enhances the dielectric properties of polymers such as polyethylene, PTFE, or epoxy resins. This leads to reduced signal loss, better electrical field distribution, and increased breakdown voltage. It is especially suitable for high-performance coaxial cables, microwave cables, power transmission lines, and aerospace or automotive wiring that demands both thermal endurance and superior electrical performance.
Our Strontium Titanate is available in nano and submicron powder forms, ensuring excellent dispersion in polymer matrices and uniformity in dielectric behavior. It can also be customized with surface treatments to improve compatibility with various insulation resins and extrusion processes.
Physical Properties
| Item | Spec | Remark |
| Particle Size Distribution (D50) |
0.2 ~ 30 μm |
Laser Particle Size Analizer |
| Water Content (wt%) |
0.2 ~ 30μm ： < 0.5 |
105℃ × 1Hr |
| Ignition Loss (wt%) |
0.2 ~ 30μm ： < 1.0 |
800℃ × 1Hr |
Chemical Composition
| Product No. | ST-1 Series | ST-2 Series | ST-3 Series |
| SrO/TiO2 ( Mole Ratio) | 1.000±0.01 | 1.000±0.02 | 1.000±0.03 |
| BaO(wt%) | <0.05 | <0.1 | <0.3 |
| Fe2O3 (wt%) | <0.01 | <0.03 | <0.1 |
| K2O+Na2O(wt%) | <0.01 | <0.03 | <0.1 |
| Al2O3 (wt%) | <0.1 | <0.2 | <0.3 |
| SiO2(wt%) | <0.1 | <0.2 | <0.3 |
Product Features
Strontium titanate (SrTiO₃) is a functional material with excellent dielectric properties, optical properties and thermal stability. It is widely used in microelectronic devices, optical materials, energy storage devices and superconducting research. The main features include:
1. High dielectric constant and low loss
SrTiO₃ has a high dielectric constant (εr > 300) and performs well in high-frequency electronic applications.
The low dielectric loss property makes it suitable for high-performance capacitors, microwave devices and RF components.
2. Excellent optical properties
SrTiO₃ has a high refractive index (n ≈ 2.4) and is suitable for optical lenses, lasers and optoelectronic materials.
Its excellent nonlinear optical properties make it suitable for optical modulators, laser frequency doubling and holographic storage.
3. Compatible with high-temperature superconducting applications
SrTiO₃ is an ideal high-temperature superconducting substrate material, commonly used in superconducting films such as yttrium barium copper oxide (YBCO).
It has excellent lattice matching ability and is suitable for the research and development of advanced electronic materials.
4. Excellent thermal stability
It can still maintain its dielectric properties in high temperature environment, and is suitable for high temperature electronic components and heat-resistant coatings.
Suitable for thermistors, infrared detectors and high temperature sensors.
5. Suitable for composite with a variety of functional materials
It can be composited with barium titanate (BaTiO₃), barium lanthanum titanate (BLT), ferroelectric materials, etc. to improve the comprehensive performance of the material.
It is widely used in electronic ceramics, functional composite materials and energy storage materials.
Applications:
High-voltage and high-frequency electrical cables
Coaxial and microwave communication cables
Insulating fillers or coatings in power transmission systems
Aerospace, automotive, and defense-grade cable assemblies
Embedded dielectric layers in smart cable technologies
FAQ
1: What is the function of Strontium Titanate in electrical cables?
SrTiO₃ acts as a dielectric enhancer and thermal stabilizer. It improves the electrical insulation, reduces signal loss, and increases dielectric strength in advanced cable materials.
2: Can SrTiO₃ be mixed into standard cable insulation polymers?
Yes, SrTiO₃ can be dispersed in polymers like polyethylene, polypropylene, PTFE, and epoxy. Surface-treated grades improve bonding and dispersion within the matrix.
3: What form is SrTiO₃ available in for cable applications?
It is available in nano and submicron powders, which are ideal for achieving uniform dielectric properties and consistent processing in insulation materials.
4: Is SrTiO₃ suitable for high-temperature cable environments?
Yes, SrTiO₃ offers excellent thermal stability and retains its dielectric performance even at elevated temperatures, making it suitable for industrial and aerospace use.
5: Is the material RoHS compliant?
Yes, our SrTiO₃ is RoHS-compliant and free of hazardous substances, suitable for environmentally regulated applications.
6: How does SrTiO₃ affect cable signal performance?
Its high dielectric constant and low loss tangent help maintain signal integrity, especially in high-frequency or high-voltage applications.
