| Commodity: | Lithium Tetraborate(Li2B4O7) |
| Composition: | Li2O:B2O3=1:2¡À0.02 |
| Growth Method: | modified Brigman |
| Purity/Grade: | SAW |
| Lattice Consant: | a=9.479A,c=10.280A |
| Melting Point: | 917¡æ |
| Density: | 2.45g/cm3 |
| Hardness: | 6(Mohs) |
| Relative Dielectric Constant: | ¦ÅT11/¦Å0=8.5,¦ÅT33/¦Å0=8.2 |
| Elastic Stiffness Coefficient(x1010N/m2) | cE11=13.5,cE12=0.357,cE13=3.35,cE33=5.68,cE44=5.85,cE66=4.67 |
| Piezoelectric Strain Constant(C/m2): | e15=0.472,e31=0.290,e33=0.928 |
| Themal Expansion Coefficient(x10-6/¡æ): | a11=11.1,a33=3.74 |
| Pyro. Constant: | 3.0x10-5c/m2.K |
| Poling: | none |
| Curie Temperature(Tc): | none |