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Name: | Lanthanum Aluminate Crystal | Chemical Formula: | LaAlO3 |
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Density: | 6.52 (g/cm 3) | Hardness: | 6-6.5(mohs) |
Melting Point (℃): | 2080℃ | Thermal Expansion: | 9.4x10-6/℃ |
Permittivity: | ε = 21 | Growth Method: | Czochralski |
Loss Tangent (10ghz): | ~ 3 × 10 -4 @ 300k, ~ 0.6 × 10 -4 @ 77k | Color And Appearance: | From Brown To Brownish |
High Light: | Optical Lanthanum Aluminate LaAlO3 Crystal,LaAlO3 Crystal Optical Substrate,High Temperature Superconducting LaAlO3 Crystal |
Lanthanum aluminate (LaAlO3) substrate single crystal is the most important industrialized, large-size high-temperature superconducting thin film single crystal substrate material. It is a good substrate material for epitaxial growth of high temperature superconducting thin films and giant magnetic thin films. Its dielectric properties are suitable for low loss microwave and dielectric resonance applications.
Main Advantages:
Applications:
Main Properties:
Major Parameters | ||
Crystal structure | M6(normal temperature) | M3(>435℃) |
Unit cell constant | M6 a=5.357A c=13.22 A | M3 a=3.821 A |
Melt point(℃) | 2080 ℃ | |
Density | 6.52(g/cm3) | |
Hardness | 6-6.5(Mohs) | |
Thermal expansion | 9.4x10-6/℃ | |
Dielectric constants | ε=21 | |
Secant loss(10ghz) | ~3×10-4@300k,~0.6×10-4@77k | |
Color and appearance | To anneal and conditions differ from brown to brownish | |
Chemical stability | Insoluble in mineral acid at room temperature, soluble in H3PO4 at temperatures above 150 °C | |
Characteristics | For microwave electron device | |
Growth method | Czochralski method | |
Size | Size upon request, the biggest diameter 3 inches | |
Ф15, Ф20, Ф1″, Ф2″, Ф2.6″, Ф3″ | ||
Thickness | 0.5mm,1.0mm | |
Polishing | Single or double | |
Crystal Orientation | <100> <110> <111> | |
redirection precision | ±0.5° | |
Redirection the edge: | 2°(special in 1°) | |
Angle of crystalline | Special size and orientation are available upon request | |
Ra: | ≤5Å(5µm×5µm) | |
Pack |
Class100 clean bag,Class 1000 clean bag |
Contact Person: Zheng
Tel: +86 18255496761
Fax: 86-551-63840588
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