Civil military integration cooperation foundation: project team members have civil military integration cooperation foundation, such as Mindray medical, East Sunshine Group and other units with military background to provide technical support and production services. At present, we have reached a cooperation agreement with Beijing Jinggu Technology Co., Ltd., and have 1.5 million technology and product development projects
SrTiO3 substrate was prepared in cooperation with South University of science and technology
Advantage:
1. Good lattice matching of HTS materials
2. No twin structure
3. Excellent physical and mechanical properties
SrTiO3 single crystal has the good lattice structure of perovskite structure material. It is an excellent substrate material for HTS epitaxial growth and most oxide films. It has been widely used in the research of high temperature superconducting films, special optical windows and high quality sputtering targets.
Performance index:
|
Crystal system |
Cubic system |
|
Growth method |
Cubic system |
|
lattice constant |
a=3.905Å |
|
Melting point (℃) |
2080 |
|
Density (g / cm3) |
5.122 |
|
Hardness (mho) |
6-6.5 |
|
Coefficient of thermal expansion (/ ℃) |
9.4×10-6 |
|
Dielectric constant |
ε=5.20 |
|
Coefficient of thermal expansion |
10.4×10-6/k |
|
Color and appearance |
Transparent (sometimes slightly brown depending on the annealed state) without twins |
|
Crystal plane orientation accuracy |
±0.5° |
|
Edge orientation accuracy |
2°（ Special requirements can reach 1 ° (within) |
|
orientation |
<100>、<110>、<111> etc. |
|
main features |
It matches well with the crystal lattice of high temperature superconductor, has no twin structure, and has excellent physical and mechanical properties |
