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Product Description
Product Introduction
Strontium Titanate (SrTiO₃) is a high-permittivity ceramic material known for its excellent dielectric properties, thermal stability, and compatibility with advanced electronic components. As a special dielectric adhesive material, SrTiO₃ is increasingly used in bonding applications where electrical insulation and high dielectric performance are essential, such as in multilayer ceramic devices, microwave components, and embedded passive systems.
This advanced material exhibits a perovskite crystal structure with a high dielectric constant (typically between 200 and 300 at room temperature), low dielectric loss, and strong thermal reliability. When formulated into a composite or paste, SrTiO₃ serves as a functional adhesive with outstanding dielectric insulation, mechanical strength, and compatibility with substrates such as alumina, silicon, or other ceramic layers.
Our Strontium Titanate is available as a high-purity powder or pre-formulated adhesive paste. The powder can be integrated into custom binder systems, while the paste is ready to use in screen printing, dispensing, or lamination processes. It is especially suitable for use in microelectronics, RF components, and high-frequency circuit boards requiring both bonding and dielectric functionality.
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: What makes Strontium Titanate suitable as a dielectric adhesive material?
SrTiO₃ combines high dielectric constant and strong thermal stability with good adhesion properties, making it ideal for applications where bonding and insulation are required simultaneously.
2: In what forms is SrTiO₃ available?
It is available in two forms: high-purity powder for custom formulations, and pre-mixed dielectric adhesive paste ready for screen printing or direct application.
3: What are the typical dielectric properties?
SrTiO₃ exhibits a dielectric constant between 200 and 300 at room temperature, with low dielectric loss, especially at high frequencies.
4: Can this material withstand high temperatures?
Yes, SrTiO₃ maintains stable performance at elevated temperatures, making it suitable for high-reliability electronic and ceramic packaging applications.
5: Is SrTiO₃ RoHS-compliant and lead-free?
Yes, our strontium titanate materials are free of hazardous substances and fully RoHS-compliant.
6: Can SrTiO₃ be used in multilayer ceramic capacitor (MLCC) assembly?
Yes, it is particularly effective in MLCCs and other multilayer assemblies that require both dielectric performance and reliable adhesive bonding.
