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strontium titanate (SrTi03) powder, crystalline strontium titanate SrTi03, ceramics, dieletric, CAS# 12060-59-2,
SrTi03
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A high dielectric constant material (225-250)
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Strontium titanate is an oxide of strontium and titanium with the chemical formula SrTiO3. It is a centrosymmetric paraelectric material with a perovskite structure. At low temperatures it approaches a ferroelectric phase transition with a very large dielectric constant ~104 but remains paraelectric down to the lowest temperatures measured. It was long thought to be a wholly artificial material, until 1982 when its natural counterpart—discovered in Siberia and named tausonite—was recognised by the IMA. Tausonite remains an extremely rare mineral in nature, occurring as very tiny crystals.
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Strontium titanate is both much denser (specific gravity 4.88 for natural, 5.13 for synthetic) and much softer (Mohs hardness 6–6.5 for natural, 5.5 for synthetic) than diamond. Its crystal system is cubic and its refractive index (2.41—as measured by sodium light, 589.3 nm) is nearly identical to that of diamond, but the dispersion (the optical property responsible for the "fire" of the cut stones) of strontium titanate is over four times higher, at 0.19 (B–G interval). This results in an excess of fire when compared to diamond.
99.9%
Sintered pieces, targets, 200 mesh by down powder, and nano particles
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Molecular Weight (g/mol.)
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Density (g/cm3)
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5.12
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Melting Point (°C)
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2080
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Boiling Point (°C)
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Structure Option
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Perovskite
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Thermal Conductivity (at 94% t. den.)
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2.78
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Mohs Hardness @20°C
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6.0 - 6.5
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Lattice Constant (A= )
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3.905
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Specific Gravity
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Dielectric Constant
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300
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Crystal Structure
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Cubic
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- Strontium Titanate (SrTi03) Powder Typical Applications:
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Advanced ceramics, etc.
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Its most important application has been in its synthesized form wherein it is occasionally encountered as a diamond simulant, in precision optics, in varistors, and in advanced ceramics
Drums
Listed
CAS# 12060-59-2
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