Obtained defect free and almost theoretically dense body provides MagSpin a clear and sharp vision with an optical transmission of 85% at 600 nm in the visible spectrum (from a 1 mm thick window with no antireflection coating). This is noticeably close to the theoretical transmission value of this material and consistent throughout the entire body. MagSpin exhibits even higher transmission characteristics (>90 %) in 1 – 5 µm region of the infrared spectrum.
In the quasistatic tests, Vickers hardness of MagSpin was measured as high as 1530 HV/10 (15 GPa), which is more than two times harder than the tempered glass and three times harder than the soda-lime glass. Hardness value may vary between 14 – 15 GPa depending on the compositions and different parameters used in the production process. These high hardness values guarantee that MagSpin is not susceptible to scratch in everyday use.
Manufacturing method of MagSpin ensures the possibility to have different toughness values throughout the product if required. Toughness is associated with the impact resistance and measured by indentation method. We can produce diverse microstructure designs to meet with the requirements of the specific application. For instance, one of our products, that is introduced as a phone screen, is reinforced at the sides and corners; the most vulnerable regions to impact. In this product, fracture toughness value changes from 1.7 MPa.m1/2 in transparent areas to 3.5 MPa.m1/2 in reinforced regions. After all, the toughness of MagSpin can be controlled to present regional differences in certain products.
MagSpin’s microstructure also provides a more convenient diffusion path for doping to create different colors. We create a nice black tint for a more appealing look and customize the level of transparency.