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Product Description
Product Introduction
Strontium Titanate (SrTiO₃) is a high-performance perovskite oxide ceramic material widely used in the field of electronic ceramics. With its high dielectric constant, excellent thermal stability, and robust crystal structure, SrTiO₃ is ideal for use in capacitors, thermistors, piezoelectric devices, and multilayer ceramic components.
SrTiO₃ exhibits a tunable dielectric property, making it a preferred material in microwave devices, ceramic capacitors, and varistors. It is often used as a base material or a key additive in formulations where high permittivity, low dielectric loss, and temperature stability are essential. Additionally, doped versions of SrTiO₃ are used in semiconducting ceramics for applications such as PTC thermistors and sensor components.
The fine-grain structure and excellent sinterability of our SrTiO₃ powders support high-density ceramic processing. Available in nano and submicron particle sizes, our high-purity Strontium Titanate is engineered to deliver superior performance in both traditional and advanced ceramic applications.
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.
FAQ
1: Why is Strontium Titanate used in electronic ceramics?
SrTiO₃ offers a high dielectric constant, good thermal stability, and low loss, making it ideal for capacitors, thermistors, and other dielectric applications.
2: What electronic components use SrTiO₃?
It is commonly used in MLCCs, PTC thermistors, varistors, sensors, and microwave dielectric devices.
3: What forms are available for SrTiO₃ powder?
We offer high-purity SrTiO₃ in nano, submicron, and custom particle sizes to support various sintering and processing methods.
4: Is SrTiO₃ compatible with other ceramic materials?
Yes, SrTiO₃ is often blended with materials like BaTiO₃ or doped with elements like Nb or La for enhanced electrical properties.
5: Can SrTiO₃ be used in high-frequency applications?
Absolutely. Its low dielectric loss and thermal stability make it suitable for high-frequency and microwave electronic components.
6: Is your SrTiO₃ product environmentally compliant?
Yes, our Strontium Titanate meets RoHS and REACH standards and contains no hazardous substances.
